From c8c63f3bc3209897da45f3ef7a95edd7f3d64322 Mon Sep 17 00:00:00 2001
From: msyamkumar <msyamkumar@wisc.edu>
Date: Wed, 19 Oct 2022 15:43:11 -0500
Subject: [PATCH] Updating lecture 18 completed notebook file

---
 .../lec-18/lec18_dictionaries2.ipynb          | 11064 +---------------
 1 file changed, 79 insertions(+), 10985 deletions(-)

diff --git a/f22/meena_lec_notes/lec-18/lec18_dictionaries2.ipynb b/f22/meena_lec_notes/lec-18/lec18_dictionaries2.ipynb
index 4e0ce2a..6e84b70 100644
--- a/f22/meena_lec_notes/lec-18/lec18_dictionaries2.ipynb
+++ b/f22/meena_lec_notes/lec-18/lec18_dictionaries2.ipynb
@@ -30,8 +30,8 @@
    "outputs": [],
    "source": [
     "# Keys can be what type? :     Any type that is ____immutable____________\n",
-    "# Values can be what type? :   any type (including other dictionaries)\n",
-    "# Indexing? .... yes/no        No\n",
+    "# Values can be what type? :   Any type (including other dictionaries & lists)\n",
+    "# Indexing? .... yes/no        No (lookup is not the same as indexing)\n",
     "# Slicing? ..... yes/no        No\n",
     "# Mutable?......yes/no         Yes"
    ]
@@ -315,13 +315,13 @@
     "\n",
     "major_freq = {} # KEY: unique major; VALUE: count of unique major\n",
     "\n",
-    "for row in cs220_data:\n",
-    "    major = row[cs220_header.index(\"Major\")]\n",
-    "    if major in major_freq:\n",
-    "        major_freq[major] += 1\n",
-    "    else:\n",
+    "for row_idx in range(len(cs220_data)):\n",
+    "    major = cell(cs220_data, cs220_header, row_idx, \"Major\")\n",
+    "    if major not in major_freq:\n",
     "        major_freq[major] = 1\n",
-    "    \n",
+    "    else:\n",
+    "        major_freq[major] += 1\n",
+    "        \n",
     "major_freq"
    ]
   },
@@ -394,7 +394,7 @@
     "suffix.get(1)\n",
     "\n",
     "# TODO: what happens when you try to get a key that is not there? Try it.\n",
-    "print(suffix.get(10)) # Returns None\n",
+    "print(suffix.get(4))\n",
     "\n",
     "# TODO: what happens whey you try to pop a key that is not there? Try it.\n",
     "# suffix.pop(10) # KeyError"
@@ -555,20 +555,20 @@
    "outputs": [],
    "source": [
     "# Let's bucketize the data\n",
-    "buckets = dict() # Key: unique bucketize column value; Value: list of lists (rows having that unique column value)\n",
     "\n",
     "def bucketize(bucket_column):\n",
-    "    \"\"\"\n",
-    "    generates and returns bucketized data based on bucket_column\n",
-    "    \"\"\"\n",
-    "    # Key: unique bucketize column value; Value: list of lists (rows having that unique column value)\n",
-    "    buckets = dict()\n",
+    "    buckets = dict() # Key: unique bucketize column value; \\\n",
+    "    # Value: list of lists (rows having that unique column value)\n",
+    "\n",
     "    for row_idx in range(len(cs220_data)):\n",
-    "        col_value = cell(cs220_data, cs220_header, row_idx, bucket_column)\n",
-    "        if col_value not in buckets:\n",
-    "            buckets[col_value] = []\n",
-    "        buckets[col_value].append(cs220_data[row_idx])\n",
-    "        \n",
+    "        row = cs220_data[row_idx]\n",
+    "        col_val = cell(cs220_data, cs220_header, row_idx, bucket_column)\n",
+    "        if col_val not in buckets:\n",
+    "            # no existing bucket\n",
+    "            buckets[col_val] = []\n",
+    "        # must append row in both cases (new bucket and existing bucket)\n",
+    "        buckets[col_val].append(row)\n",
+    "\n",
     "    return buckets"
    ]
   },
@@ -576,10932 +576,20 @@
    "cell_type": "code",
    "execution_count": 13,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "{'LEC001': [['LEC001',\n",
-       "   '22',\n",
-       "   'Engineering: Biomedical',\n",
-       "   '53703',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'none (just cheese)',\n",
-       "   'neither',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '',\n",
-       "   'Mathematics/AMEP',\n",
-       "   '53706',\n",
-       "   '31.230391',\n",
-       "   '121.473701',\n",
-       "   'basil/spinach',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Economics (Mathematical Emphasis)',\n",
-       "   '53703',\n",
-       "   '48.86',\n",
-       "   '2.3522',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53703',\n",
-       "   '24.7',\n",
-       "   '46.7',\n",
-       "   'mushroom',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '23',\n",
-       "   'Computer Science',\n",
-       "   '53711',\n",
-       "   '43.073929',\n",
-       "   '-89.385239',\n",
-       "   'sausage',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '22',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53719',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'none (just cheese)',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '18',\n",
-       "   'Computer Science',\n",
-       "   '53706',\n",
-       "   '26.2992',\n",
-       "   '87.2625',\n",
-       "   'mushroom',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '24',\n",
-       "   'Business: Information Systems',\n",
-       "   '53703',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'macaroni/pasta',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '',\n",
-       "   'Computer Science',\n",
-       "   '53715',\n",
-       "   '34.052235',\n",
-       "   '-118.243683',\n",
-       "   'green pepper',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '26',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53703',\n",
-       "   '41.902782',\n",
-       "   '12.496365',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '25',\n",
-       "   'Economics',\n",
-       "   '53703',\n",
-       "   '40.712776',\n",
-       "   '-74.005974',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Computer Science',\n",
-       "   '53706',\n",
-       "   '48.855709',\n",
-       "   '2.29889',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '21',\n",
-       "   'Computer Science',\n",
-       "   '53715',\n",
-       "   '16.306652',\n",
-       "   '80.436539',\n",
-       "   'Other',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '18',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53715',\n",
-       "   '30.733315',\n",
-       "   '76.779419',\n",
-       "   'green pepper',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Economics (Mathematical Emphasis)',\n",
-       "   '53703',\n",
-       "   '43.073929',\n",
-       "   '-89.385239',\n",
-       "   'macaroni/pasta',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '21',\n",
-       "   'Business: Finance',\n",
-       "   '53711',\n",
-       "   '43.073929',\n",
-       "   '-89.385239',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Computer Science',\n",
-       "   '53703',\n",
-       "   '51.507351',\n",
-       "   '-0.127758',\n",
-       "   'sausage',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '21',\n",
-       "   'Science: Biology/Life',\n",
-       "   '53703',\n",
-       "   '36',\n",
-       "   '117',\n",
-       "   'macaroni/pasta',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '18',\n",
-       "   'Engineering: Other',\n",
-       "   '53706',\n",
-       "   '41.902782',\n",
-       "   '12.496365',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '18',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53706',\n",
-       "   '19.655041',\n",
-       "   '-101.169891',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Business: Actuarial',\n",
-       "   '53703',\n",
-       "   '42.28',\n",
-       "   '-83.74',\n",
-       "   'mushroom',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Business: Information Systems',\n",
-       "   '53703',\n",
-       "   '39.481655',\n",
-       "   '-106.038353',\n",
-       "   'macaroni/pasta',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Business: Other|Business: Accounting',\n",
-       "   '53703',\n",
-       "   '31.230391',\n",
-       "   '121.473701',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53706',\n",
-       "   '35.142441',\n",
-       "   '-223.154297',\n",
-       "   'green pepper',\n",
-       "   'neither',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '19.8968',\n",
-       "   '155.5828',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '21',\n",
-       "   'Computer Science',\n",
-       "   '53703',\n",
-       "   '43.21518',\n",
-       "   '-87.94241',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '22',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53703',\n",
-       "   '47.497913',\n",
-       "   '19.040236',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Business andministration',\n",
-       "   '53703',\n",
-       "   '37.389091',\n",
-       "   '-5.984459',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Computer Science',\n",
-       "   '53703',\n",
-       "   '40.7128',\n",
-       "   '74.006',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '22',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53726',\n",
-       "   '36.97447',\n",
-       "   '122.02899',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Data Science',\n",
-       "   '53703',\n",
-       "   '41',\n",
-       "   '87',\n",
-       "   'sausage',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Science: Other|Environmental Science',\n",
-       "   '53715',\n",
-       "   '41.878113',\n",
-       "   '-87.629799',\n",
-       "   'green pepper',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '24',\n",
-       "   'Economics',\n",
-       "   '53703',\n",
-       "   '40',\n",
-       "   '-90',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '',\n",
-       "   'Data Science',\n",
-       "   '53706',\n",
-       "   '40.416775',\n",
-       "   '-3.70379',\n",
-       "   'none (just cheese)',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '37',\n",
-       "   'Data Science',\n",
-       "   '53718',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'green pepper',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '21',\n",
-       "   'Data Science',\n",
-       "   '53703',\n",
-       "   '30.572351',\n",
-       "   '121.776761',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '22',\n",
-       "   'consumer behavior and marketplace studies',\n",
-       "   '53715',\n",
-       "   '43.653225',\n",
-       "   '-79.383186',\n",
-       "   'mushroom',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Computer Science',\n",
-       "   '53715',\n",
-       "   '41',\n",
-       "   '-87',\n",
-       "   'Other',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '17',\n",
-       "   'Statistics',\n",
-       "   '53715',\n",
-       "   '43.0722',\n",
-       "   '89.4008',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Economics',\n",
-       "   '53715',\n",
-       "   '27.99942',\n",
-       "   '120.66682',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Mathematics/AMEP',\n",
-       "   '53711',\n",
-       "   '45.85038',\n",
-       "   '-84.616989',\n",
-       "   'pineapple',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '23',\n",
-       "   'Economics',\n",
-       "   '53703',\n",
-       "   '43.07348',\n",
-       "   '-89.38089',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '29',\n",
-       "   'Business: Other|Technology Strategy/ Product Management',\n",
-       "   '53705',\n",
-       "   '37.386051',\n",
-       "   '-122.083855',\n",
-       "   'Other',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '18',\n",
-       "   'Engineering: Biomedical',\n",
-       "   '53715',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'sausage',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Yes'],\n",
-       "  ['LEC001',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53703',\n",
-       "   '23.885942',\n",
-       "   '45.079163',\n",
-       "   'mushroom',\n",
-       "   'neither',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '30',\n",
-       "   'Business: Other',\n",
-       "   '53705',\n",
-       "   '43.07175',\n",
-       "   '-89.46498',\n",
-       "   'pineapple',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC001',\n",
-       "   '20',\n",
-       "   'Business: Other|Consumer Behavior and Marketplace Studies',\n",
-       "   '53703',\n",
-       "   '40.76078',\n",
-       "   '-111.891045',\n",
-       "   'green pepper',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '21',\n",
-       "   'Data Science',\n",
-       "   '53705',\n",
-       "   '40.712776',\n",
-       "   '-74.005974',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC001',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '43',\n",
-       "   '-90',\n",
-       "   'sausage',\n",
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-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53706',\n",
-       "   '41.902782',\n",
-       "   '12.496365',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '20',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '41.878113',\n",
-       "   '-87.629799',\n",
-       "   'Other',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Science: Other',\n",
-       "   '53715',\n",
-       "   '41.9028',\n",
-       "   '12.4964',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Computer Science',\n",
-       "   '53706',\n",
-       "   '52.370216',\n",
-       "   '4.895168',\n",
-       "   'basil/spinach',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53703',\n",
-       "   '5.838715',\n",
-       "   '3.603516',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '44',\n",
-       "   '-94',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Economics (Mathematical Emphasis)',\n",
-       "   '53705',\n",
-       "   '31.230391',\n",
-       "   '121.473701',\n",
-       "   'sausage',\n",
-       "   'neither',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Business: Finance',\n",
-       "   '53706',\n",
-       "   '22.270979',\n",
-       "   '113.576675',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '21',\n",
-       "   'Computer Science',\n",
-       "   '53705',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'green pepper',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '21',\n",
-       "   'Science: Other|Environmental Science',\n",
-       "   '53703',\n",
-       "   '20.8',\n",
-       "   '-156.3',\n",
-       "   'basil/spinach',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53706',\n",
-       "   '44.977753',\n",
-       "   '-93.265015',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '',\n",
-       "   'Business: Other',\n",
-       "   '53706',\n",
-       "   '42.360081',\n",
-       "   '-71.058884',\n",
-       "   'sausage',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Engineering: Biomedical',\n",
-       "   '53706',\n",
-       "   '45.17099',\n",
-       "   '-87.16494',\n",
-       "   'Other',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '22',\n",
-       "   'Economics',\n",
-       "   '53715',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Mathematics/AMEP',\n",
-       "   '53703',\n",
-       "   '64.963051',\n",
-       "   '-19.020836',\n",
-       "   'basil/spinach',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Business: Information Systems',\n",
-       "   '53706',\n",
-       "   '25.204849',\n",
-       "   '55.270782',\n",
-       "   'none (just cheese)',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '21',\n",
-       "   'Economics',\n",
-       "   '53703',\n",
-       "   '39.904',\n",
-       "   '116.407',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Data Science',\n",
-       "   '53715',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'none (just cheese)',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53706',\n",
-       "   '47.606209',\n",
-       "   '-122.332069',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '20.924325',\n",
-       "   '-156.690102',\n",
-       "   'sausage',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '21',\n",
-       "   'Business: Actuarial',\n",
-       "   '53715',\n",
-       "   '43.073051',\n",
-       "   '-89.40123',\n",
-       "   'pineapple',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Business: Actuarial',\n",
-       "   '53715',\n",
-       "   '60.391262',\n",
-       "   '5.322054',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Data Science',\n",
-       "   '53715',\n",
-       "   '23.697809',\n",
-       "   '120.960518',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53706',\n",
-       "   '40.712776',\n",
-       "   '74.005974',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '21',\n",
-       "   'Statistics',\n",
-       "   '53703',\n",
-       "   '31.230391',\n",
-       "   '121.473701',\n",
-       "   'pineapple',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '65.68204',\n",
-       "   '-18.090534',\n",
-       "   'sausage',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53715',\n",
-       "   '41.73849',\n",
-       "   '-71.30418',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Computer Science',\n",
-       "   '53706',\n",
-       "   '40.744678',\n",
-       "   '-73.758072',\n",
-       "   'mushroom',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Undecided',\n",
-       "   '53706',\n",
-       "   '43.2967',\n",
-       "   '87.9876',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53706',\n",
-       "   '47.48',\n",
-       "   '-122.28',\n",
-       "   'basil/spinach',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '20',\n",
-       "   'Science: Physics',\n",
-       "   '53715',\n",
-       "   '64.963051',\n",
-       "   '-19.020836',\n",
-       "   'mushroom',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '21',\n",
-       "   'Languages',\n",
-       "   '53511',\n",
-       "   '39.952583',\n",
-       "   '-75.165222',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53703',\n",
-       "   '11.89',\n",
-       "   '-85',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '33.873417',\n",
-       "   '-115.900993',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53715',\n",
-       "   '45.40857',\n",
-       "   '-91.73542',\n",
-       "   'sausage',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53706',\n",
-       "   '20.798363',\n",
-       "   '-156.331924',\n",
-       "   'none (just cheese)',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Undecided',\n",
-       "   '53715',\n",
-       "   '43.041069',\n",
-       "   '-87.909416',\n",
-       "   'mushroom',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53706',\n",
-       "   '43',\n",
-       "   '-88.27',\n",
-       "   'Other',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '20',\n",
-       "   'Business: Other|Accounting',\n",
-       "   '53726',\n",
-       "   '43',\n",
-       "   '-89',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53562',\n",
-       "   '42.66544',\n",
-       "   '21.165319',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53706',\n",
-       "   '33.748997',\n",
-       "   '-84.387985',\n",
-       "   'mushroom',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Business: Actuarial',\n",
-       "   '53706',\n",
-       "   '39.299236',\n",
-       "   '-76.609383',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53706',\n",
-       "   '45.87128',\n",
-       "   '-89.711632',\n",
-       "   'pepperoni',\n",
-       "   'neither',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '',\n",
-       "   'Computer Science',\n",
-       "   '53703',\n",
-       "   '43.07',\n",
-       "   '-89.4',\n",
-       "   'pepperoni',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'no preference',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53703',\n",
-       "   '40.712776',\n",
-       "   '-74.005974',\n",
-       "   'basil/spinach',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53706',\n",
-       "   '40.712776',\n",
-       "   '-74.005974',\n",
-       "   'Other',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'No'],\n",
-       "  ['LEC003',\n",
-       "   '20',\n",
-       "   'Economics',\n",
-       "   '53703',\n",
-       "   '22.54',\n",
-       "   '114.05',\n",
-       "   'pineapple',\n",
-       "   'dog',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Data Science',\n",
-       "   '53706',\n",
-       "   '36.974117',\n",
-       "   '-122.030792',\n",
-       "   'pepperoni',\n",
-       "   'cat',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '18',\n",
-       "   'Mathematics/AMEP',\n",
-       "   '53706',\n",
-       "   '42.99571',\n",
-       "   '-90',\n",
-       "   'sausage',\n",
-       "   'dog',\n",
-       "   'Yes',\n",
-       "   'night owl',\n",
-       "   'Yes'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Industrial',\n",
-       "   '53715',\n",
-       "   '24.713552',\n",
-       "   '46.675297',\n",
-       "   'basil/spinach',\n",
-       "   'neither',\n",
-       "   'Yes',\n",
-       "   'early bird',\n",
-       "   'Maybe'],\n",
-       "  ['LEC003',\n",
-       "   '19',\n",
-       "   'Engineering: Mechanical',\n",
-       "   '53705',\n",
-       "   '46.589146',\n",
-       "   '-112.039108',\n",
-       "   'none (just cheese)',\n",
-       "   'cat',\n",
-       "   'No',\n",
-       "   'night owl',\n",
-       "   'Yes']]}"
-      ]
-     },
-     "execution_count": 13,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
-    "sec_buckets = bucketize(\"Lecture\")\n",
-    "sec_buckets"
+    "lec_buckets = bucketize(\"Lecture\")\n",
+    "# lec_buckets"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "major_buckets = bucketize(\"Major\")\n",
+    "# major_buckets"
    ]
   },
   {
@@ -11513,7 +601,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -11522,7 +610,7 @@
        "19.61"
       ]
      },
-     "execution_count": 14,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -11539,18 +627,16 @@
     "    count = 0\n",
     "    for row_idx in range(len(data)):\n",
     "        col_data = cell(data, header, row_idx, col_name)\n",
+    "        # handle bounds checking\n",
     "        if col_data != None:\n",
-    "            # handle bounds checking\n",
-    "            if col_data < min_bound or col_data > max_bound:\n",
-    "                continue\n",
-    "            total += col_data\n",
-    "            count += 1\n",
+    "            if col_data > min_bound and col_data < max_bound:\n",
+    "                total += col_data\n",
+    "                count += 1\n",
+    "    \n",
+    "    if count == 0:\n",
+    "        return 0 # or whatever is the expected return value\n",
+    "    return round(total / count, 2) # implicit else\n",
     "    \n",
-    "    if count != 0:\n",
-    "        return round(total / count, 2)\n",
-    "    else:\n",
-    "        return 0\n",
-    "  \n",
     "min_age = 0\n",
     "max_age = 118\n",
     "col_avg(cs220_data, cs220_header, \"Age\", min_age, max_age)"
@@ -11565,7 +651,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -11573,10 +659,10 @@
     "    \"\"\"\n",
     "    Computes and returns column average per bucket\n",
     "    \"\"\"\n",
-    "    averages = {} # Key: bucket column; Value: average for that bucket\n",
+    "    averages = {} # Key: bucket name; Value: bucket average\n",
     "    for bucket_name in buckets:\n",
-    "        bucket_rows = buckets[bucket_name]\n",
-    "        averages[bucket_name] = col_avg(bucket_rows, cs220_header, avg_col_name, min_age, max_age)\n",
+    "        averages[bucket_name] = col_avg(buckets[bucket_name], \\\n",
+    "                                       cs220_header, avg_col_name, min_age, max_age)\n",
     "    return averages"
    ]
   },
@@ -11591,7 +677,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -11605,13 +691,13 @@
        " 'LEC003': 19.14}"
       ]
      },
-     "execution_count": 16,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "avg_per_bucket(sec_buckets, \"Age\")"
+    "avg_per_bucket(lec_buckets, \"Age\")"
    ]
   },
   {
@@ -11623,7 +709,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -11729,13 +815,12 @@
        " 'Environmental Studies': 18.0}"
       ]
      },
-     "execution_count": 17,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "major_buckets = bucketize(\"Major\")\n",
     "avg_per_bucket(major_buckets, \"Age\")"
    ]
   },
@@ -11768,7 +853,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -11787,7 +872,7 @@
        " 'Procrastinator']"
       ]
      },
-     "execution_count": 18,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -11799,7 +884,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -11807,18 +892,27 @@
     "    \"\"\"\n",
     "    Transform data into a list of dictionaries\n",
     "    \"\"\"\n",
-    "    dict_list = [] #should be defined outside the for loop, because it stores the entire data\n",
+    "    transformed_data = [] #should be defined outside the for loop, because it stores the entire data\n",
+    "    for row in data:\n",
+    "        #should be defined inside the for loop, because it represents one row as a dictionary\n",
+    "        row_dict = {} # Key: header; Value: data\n",
+    "        for idx in range(len(row)):\n",
+    "            row_dict[header[idx]] = row[idx]\n",
+    "        transformed_data.append(row_dict)\n",
+    "    return transformed_data\n",
     "    \n",
-    "    for row in cs220_data:\n",
-    "        new_row = {} #should be defined inside the for loop, because it represents one row as a dictionary\n",
-    "        for i in range(len(cs220_header)):\n",
-    "            new_row[cs220_header[i]] = row[i]\n",
-    "        dict_list.append(new_row)\n",
-    "    return dict_list\n",
-    "        \n",
     "transformed_data = transform(cs220_header, cs220_data)"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# transformed_data"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -11828,7 +922,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
@@ -11852,7 +946,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
@@ -11883,7 +977,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -11929,7 +1023,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -11938,7 +1032,7 @@
        "'Tom Sawyer bamboozled the neighborhood boys into painting for him'"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -11956,7 +1050,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -11965,7 +1059,7 @@
        "['bamboozle', 'gubbins']"
       ]
      },
-     "execution_count": 24,
+     "execution_count": 26,
      "metadata": {},
      "output_type": "execute_result"
     }
-- 
GitLab