Interview Questions and Answers

Example:

print('Hello, R!')

Example:

x <- 10

Example:

df <- data.frame(Name=c('John', 'Jane'), Age=c(25, 30))

Example:

attach(df)

Example:

install.packages('packageName')

Example:

str(my_data)

Example:

exists('my_variable')

Example:

library(ggplot2)
 ggplot(data = my_data, aes(x = variable1, y = variable2)) + geom_point()

Example:

ls()
# or
objects()

Example:

my_data <- read.csv('file.csv')

Example:

setwd('/path/to/directory')

Example:

install.packages('my_package'); library('my_package')

Example:

summary(my_data)