library(ISLR) #load dataset library(dplyr) library(ggplot2)

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:

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

Including Plots

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot. str(Auto) # Check the structure of the dataset sapply(Auto[, sapply(Auto, is.numeric)], range) data_summary <- Auto %>% summarise(across(where(is.numeric), list(mean = mean, sd = sd), na.rm = TRUE)) data_summary Auto_filtered <- Auto[-c(10:85), ] sapply(Auto_filtered[, sapply(Auto_filtered, is.numeric)], function(x) c(range(x), mean = mean(x), sd = sd(x))) ggplot(Auto, aes(x = horsepower, y = mpg)) + geom_point() + geom_smooth(method = “lm”) cor(Auto[, sapply(Auto, is.numeric)])