From 23a7bf386c4b88b473b0e51d67288f6d0e3ebbdb Mon Sep 17 00:00:00 2001
From: Ashwin Maran <amaran@wisc.edu>
Date: Sun, 18 Feb 2024 16:39:28 -0600
Subject: [PATCH] Upload New File
---
.../Lec_12_Iteration_Practice_Template.ipynb | 310 ++++++++++++++++++
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+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Warmup 1: Jupyter Notebook stuck in `[*]`?\n",
+ "\n",
+ "Press the Stop button! It's probably waiting for input. Otherwise, **restart** the kernel! (and run the cells)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "x = int(input(\"Type in a number: \"))\n",
+ "print(\"The number is \" + str(x), x + 1, x + 2, x + 3, x + 4, sep=\" then \", end=\"!\\n\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Warmup 2: Write a function that prints the factorial of parameter num"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "def do_factorial(num):\n",
+ " pass"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Warmup 3: Complete the code to print a treasure map\n",
+ "The map should be a grid of size `width` and `height` with `symbol` everywhere, expect at the location: `treasure_row`, `treasure_col`, where an `'X'` is placed."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "def print_treasure_map(symbol='-', height=4, width=4, treasure_row=2, treasure_col=2):\n",
+ " i = 0\n",
+ " while ...: # TODO: Complete the loop condition for printing out each row.\n",
+ " j = 0\n",
+ " while j < width:\n",
+ " if ...: # TODO: Complete the if condition for checking if we print an X or the symbol.\n",
+ " print('X', end=\"\")\n",
+ " else:\n",
+ " print(symbol, end=\"\")\n",
+ " j += ... # TODO: Complete the statement so we do not run into an infinite loop.\n",
+ " print()\n",
+ " i += 1\n",
+ " \n",
+ "print_treasure_map()\n",
+ "print_treasure_map(width=10, height=10)\n",
+ "print_treasure_map('#', 7, 4, treasure_row=0, treasure_col=1)\n",
+ "print_treasure_map('.', 5, 8, 3, 6)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# CS220: Lecture 12\n",
+ "\n",
+ "\n",
+ "## Learning Objectives\n",
+ "After this lecture you will be able to...\n",
+ "- Iterate through a dataset using for idx in range(project.count())\n",
+ "- Compute the frequency of data that meets a certain criteria\n",
+ "- Find the maximum or minimum value of a numeric column in a dataset\n",
+ "- Use break and continue in for loops when processing a dataset\n",
+ "- Handle missing numeric values when computing a maximum/minimum\n",
+ "- Use the index of a maximum or minimum to access other information about that data item\n"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import project"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "help(project)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# Get the total # of responses\n",
+ "project.count()"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# Get the first student's primary major.\n",
+ "# With indices, we always start from 0!\n",
+ "project.get_primary_major(0)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 1: Print and Break"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "for i in range(project.count()):\n",
+ " print (i, project.get_primary_major(i))\n",
+ " if i == 10:\n",
+ " break"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# TODO: Write the same code as above using a while loop!"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 2: How many students are not in Computer Science?"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "non_cs = 0\n",
+ "for i in range(project.count()):\n",
+ " major = project.get_primary_major(i)\n",
+ " if major == \"Computer Science\":\n",
+ " continue\n",
+ " non_cs += 1\n",
+ "print(non_cs, \"out of\", project.count(), \"are non-cs!\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 3: How many students are in Data Science or Statistics?\n",
+ "\n",
+ "**BONUS:** Can you express this as a percentage?\n",
+ "\n",
+ "**BONUS+:** ...rounded to 2 decimal places?"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# write your code here"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 4: How many early birds are there below the age of 21?"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "early_birds = 0\n",
+ "for i in range(project.count()):\n",
+ " sleep_habit = project.get_sleep_habit(i)\n",
+ " age = project.get_age(i)\n",
+ " if ...: # TODO Complete this condition!\n",
+ " early_birds += 1\n",
+ " \n",
+ "print(\"There are\", early_birds, \"early birds below the age of 21.\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5: What percentage of 20-year-olds are early birds?\n",
+ "\n",
+ "**Bonus:** How can we generalize our code to 'What percentage of x-year-olds are early birds?'"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# write your code here"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 6: What is the age of the oldest student?"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "max = 0\n",
+ "for i in range(project.count()):\n",
+ " student_age = int(project.get_age(i))\n",
+ " if student_age != \"\" and student_age > max:\n",
+ " max = student_age \n",
+ "print(\"The oldest student is\", max)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 7: What is the age of the youngest student?"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# write your code here"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Other tasks for you to try...\n",
+ "- What is the average age of the class?\n",
+ "- What is the class's favorite pizza topping?\n",
+ "- What is the most popular major?\n",
+ "- For all students that have another major, print out what it is.\n",
+ "- What zip code do the majority of pineapple-eating night owls live in?"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3 (ipykernel)",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.11.7"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
--
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