{ "cells": [ { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [], "source": [ "import cvxpy as cvx\n", "import matplotlib.pyplot as plt\n", "import numpy as np\n", "import pandas as pd\n", "\n", "from sklearn import linear_model as lm\n", "\n", "%matplotlib inline" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "# Exploratory data analysis" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "Read in the *Engel food expenditure* data from the R package [`quantreg`](https://cran.r-project.org/package=quantreg)." ] }, { "cell_type": "code", "execution_count": 2, "metadata": {}, "outputs": [], "source": [ "engel = pd.read_csv('https://vincentarelbundock.github.io/Rdatasets/csv/quantreg/engel.csv', index_col=0)" ] }, { "cell_type": "code", "execution_count": 3, "metadata": {}, "outputs": [ { "data": { "text/html": [ "
\n", " | income | \n", "foodexp | \n", "
---|---|---|
1 | \n", "420.157651 | \n", "255.839425 | \n", "
2 | \n", "541.411707 | \n", "310.958667 | \n", "
3 | \n", "901.157457 | \n", "485.680014 | \n", "
4 | \n", "639.080229 | \n", "402.997356 | \n", "
5 | \n", "750.875606 | \n", "495.560775 | \n", "