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# Chapter 2 - Exploring R
# Working with a Code Editor
## Exploring RGui
### Seeing the naked R console
### Issuing a simple command
24+7+11
### Closing the console
quit()
## Dressing up with RStudio
# Starting Your First R Session
## Saying hello to the world
print("Hello world!")
## Doing simple math
1+2+3+4+5
## Using vectors
c(1,2,3,4,5)
1:5
sum(1:5)
## Storing and calculating values
x <- 1:5
x
y <- 10
x + y
x
y
z <- x + y
z
h <- "Hello"
h
hw <- c("Hello", "world!")
hw
paste("Hello", "world!")
## Talking back to the user
h <- "Hello"
if(interactive()){
yourname <- readline("What is your name?")
} else {
yourname <- "Joris"
}
paste(h, yourname)
# Sourcing a Script
h <- "Hello"
yourname <- readline("What is your name?")
print(paste(h, yourname))
### Finding help on functions
?paste
help(paste)
# Navigating the Workspace
ls()
## Manipulating the content of the workspace
rm(z)
ls()
##Saving your work
getwd()
filename <- file.path(tempdir(), "yourname.rda")
save(yourname, file=filename)
list.files(tempdir(), pattern = ".rda")
## Retrieving your work
rm(yourname)
load("yourname.rda")
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