How to perform robust regression in R

When there are outliers or influential observations in the dataset we are using , Robust regression is an alternative to ordinary least squares regression .

In order to be in R Performing robust regression in , We can use MASS In bag rlm() function , It uses the following syntax ：

The following step-by-step example shows how to R Performs robust regression for a given data set .

The first 1 Step ： Create data
First , Let's create a dummy data set to use ：

df <- data.frame(x1=c(1, 3, 3, 4, 4,