homeworkp2

{r setup, include=FALSE} knitr::opts_chunk$set(echo = TRUE)

R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

```{r cars} # Load the required library library(ISLR2)

Perform simple linear regression

lm_fit <- lm(mpg ~ horsepower, data = Auto)

Print the summary of the regression model

summary(lm_fit) # Load the required library library(ISLR2)

Perform simple linear regression

lm_fit <- lm(mpg ~ horsepower, data = Auto)

Print the summary of the regression model

summary(lm_fit) # Plot response (mpg) against predictor (horsepower) plot(Auto\(horsepower, Auto\)mpg, xlab = “Horsepower”, ylab = “MPG”, main = “Scatterplot of MPG vs. Horsepower”)

Add the least squares regression line

abline(lm_fit, col = “red”) # Produce diagnostic plots of the least squares regression fit par(mfrow = c(2, 2)) # Set up a 2x2 plotting layout plot(lm_fit)

## Including Plots

You can also embed plots, for example:

```{r pressure, echo=FALSE}
plot(pressure)

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.