{ "metadata": { "name": "", "signature": "sha256:7a1468d2b80685cd49762217b20b066c455222cbccca5b3a57e8eee142029de0" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Ranking Rows Of pandas Dataframes\n", "\n", "- **Author:** [Chris Albon](http://www.chrisalbon.com/), [@ChrisAlbon](https://twitter.com/chrisalbon)\n", "- **Date:** -\n", "- **Repo:** [Python 3 code snippets for data science](https://github.com/chrisalbon/code_py)\n", "- **Note:**" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### import modules" ] }, { "cell_type": "code", "collapsed": false, "input": [ "import pandas as pd" ], "language": "python", "metadata": {}, "outputs": [], "prompt_number": 3 }, { "cell_type": "markdown", "metadata": {}, "source": [ "### Create dataframe" ] }, { "cell_type": "code", "collapsed": false, "input": [ "data = {'name': ['Jason', 'Molly', 'Tina', 'Jake', 'Amy'], \n", " 'year': [2012, 2012, 2013, 2014, 2014], \n", " 'reports': [4, 24, 31, 2, 3],\n", " 'coverage': [25, 94, 57, 62, 70]}\n", "df = pd.DataFrame(data, index = ['Cochice', 'Pima', 'Santa Cruz', 'Maricopa', 'Yuma'])\n", "df" ], "language": "python", "metadata": {}, "outputs": [ { "html": [ "
\n", " | coverage | \n", "name | \n", "reports | \n", "year | \n", "
---|---|---|---|---|
Cochice | \n", "25 | \n", "Jason | \n", "4 | \n", "2012 | \n", "
Pima | \n", "94 | \n", "Molly | \n", "24 | \n", "2012 | \n", "
Santa Cruz | \n", "57 | \n", "Tina | \n", "31 | \n", "2013 | \n", "
Maricopa | \n", "62 | \n", "Jake | \n", "2 | \n", "2014 | \n", "
Yuma | \n", "70 | \n", "Amy | \n", "3 | \n", "2014 | \n", "
5 rows \u00d7 4 columns
\n", "\n", " | coverage | \n", "name | \n", "reports | \n", "year | \n", "coverageRanked | \n", "
---|---|---|---|---|---|
Cochice | \n", "25 | \n", "Jason | \n", "4 | \n", "2012 | \n", "1 | \n", "
Pima | \n", "94 | \n", "Molly | \n", "24 | \n", "2012 | \n", "5 | \n", "
Santa Cruz | \n", "57 | \n", "Tina | \n", "31 | \n", "2013 | \n", "2 | \n", "
Maricopa | \n", "62 | \n", "Jake | \n", "2 | \n", "2014 | \n", "3 | \n", "
Yuma | \n", "70 | \n", "Amy | \n", "3 | \n", "2014 | \n", "4 | \n", "
5 rows \u00d7 5 columns
\n", "