{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "import pandas as pd\n",
    "# pd.set_option('max_colwidth', 50)\n",
    "# set this if you need to"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The Health Department has developed an inspection report and scoring system. \n",
    "After conducting an inspection of the facility, the Health Inspector calculates a score based on the violations observed. \n",
    "Violations can fall into:\n",
    "- **high risk category**: records specific violations that directly relate to the transmission of food borne illnesses,the adulteration of food products and the contamination of food-contact surfaces.\n",
    "- **moderate risk category**: records specific violations that are of a moderate risk to the public health and safety.\n",
    "- **low risk category**: records violations that are low risk or have no immediate risk to the public health and safety."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "businesses = pd.read_csv('./data/businesses_plus.csv', parse_dates=True, dtype={'phone_number': str})\n",
    "businesses.head()\n",
    "# dtype casts the column as a specific data type"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "inspections = pd.read_csv('./data/inspections_plus.csv', parse_dates=True)\n",
    "inspections.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "violations = pd.read_csv('./data/violations_plus.csv', parse_dates=True)\n",
    "violations.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "# 1 Combine the three dataframes into one data frame called restaurant_scores\n",
    "# Hint: http://pandas.pydata.org/pandas-docs/stable/merging.html"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "# 2 Which ten business have had the most inspections?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 3 Group and count the inspections by type"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "# 4 Create a plot that shows number of inspections per month\n",
    "# Bonus for creating a heatmap\n",
    "# http://stanford.edu/~mwaskom/software/seaborn/generated/seaborn.heatmap.html?highlight=heatmap"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 5 Which zip code contains the most high risk violations?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 6 If inspection is prompted by a change in restaurant ownership, \n",
    "# is the inspection more likely to be categorized as higher or lower risk?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 7 Examining the descriptions, what is the most common violation?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 8 Create a hist of the scores with 10 bins"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 9 Can you predict risk category based on the other features in this dataset?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 10 Extra Credit:\n",
    "# Use Instagram location API to find pictures taken at the lat, long of the most High Risk restaurant\n",
    "# https://www.instagram.com/developer/endpoints/locations/"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "############################\n",
    "### A Little More Morbid ###\n",
    "############################"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "killings = pd.read_csv('./data/police-killings.csv')\n",
    "killings.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 1. Make the following changed to column names:\n",
    "# lawenforcementagency -> agency\n",
    "# raceethnicity        -> race"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 2. Show the count of missing values in each column"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 3. replace each null value in the dataframe with the string \"Unknown\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 4. How many killings were there so far in 2015?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 5. Of all killings, how many were male and how many female?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 6. How many killings were of unarmed people?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 7. What percentage of all killings were unarmed?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 8. What are the 5 states with the most killings?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 9. Show a value counts of deaths for each race"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 10. Display a histogram of ages of all killings"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 11. Show 6 histograms of ages by race"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 12. What is the average age of death by race?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 13. Show a bar chart with counts of deaths every month"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "###################\n",
    "### Less Morbid ###\n",
    "###################"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "majors = pd.read_csv('./data/college-majors.csv')\n",
    "majors.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 1. Delete the columns (employed_full_time_year_round, major_code)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 2. Show the cout of missing values in each column"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 3. What are the top 10 highest paying majors?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 4. Plot the data from the last question in a bar chart, include proper title, and labels!"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 5. What is the average median salary for each major category?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 6. Show only the top 5 paying major categories"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 7. Plot a histogram of the distribution of median salaries"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 8. Plot a histogram of the distribution of median salaries by major category"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 9. What are the top 10 most UNemployed majors?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# What are the unemployment rates?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 10. What are the top 10 most UNemployed majors CATEGORIES? Use the mean for each category\n",
    "# What are the unemployment rates?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 11. the total and employed column refer to the people that were surveyed.\n",
    "# Create a new column showing the emlpoyment rate of the people surveyed for each major\n",
    "# call it \"sample_employment_rate\"\n",
    "# Example the first row has total: 128148 and employed: 90245. it's \n",
    "# sample_employment_rate should be 90245.0 / 128148.0 = .7042"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# 12. Create a \"sample_unemployment_rate\" column\n",
    "# this column should be 1 - \"sample_employment_rate\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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