13

Linear Regression (Continuous Outcome Variable)

13.1 Simple Linear Regression

The goal of linear regression is to draw a straight-line relationship between a response variable (also known as an outcome or dependent variable) and a predictor variable (also known as a feature, covariate, or independent variable).

Let’s take another look at our tips data set.

Click here to view code image

import pandas as pd
import seaborn as sns

tips = sns.load_dataset('tips')
print(tips)
 total_bill tip sex smoker day time size 0 16.99 1.01 Female No Sun Dinner 2 1 10.34 1.66 Male No Sun Dinner 3 2 21.01 3.50 Male No Sun Dinner 3 3 23.68 3.31 Male No Sun Dinner 2 4 24.59 3.61 Female No Sun Dinner 4 .. ... ... ... ... ... ... ... 239 29.03 5.92 Male No Sat ...

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