This report is automatically generated with the R package knitr (version 1.5) .

# Chapter 2 - Exploring R Working with a Code Editor Exploring RGui Seeing the naked R
# console Issuing a simple command
24 + 7 + 11
## [1] 42
24 + 7 + 11
## [1] 42
### Closing the console q() Dressing up with RStudio Starting Your First R Session Saying
### hello to the world
print("Hello world!")
## [1] "Hello world!"
print("Hello world!")
## [1] "Hello world!"
## Doing simple math
1 + 2 + 3 + 4 + 5
## [1] 15
## Using vectors
c(1, 2, 3, 4, 5)
## [1] 1 2 3 4 5
1:5
## [1] 1 2 3 4 5
sum(1:5)
## [1] 15
## Storing and calculating values
x <- 1:5
x
## [1] 1 2 3 4 5
y <- 10
x + y
## [1] 11 12 13 14 15
x
## [1] 1 2 3 4 5
y
## [1] 10
z <- x + y
z
## [1] 11 12 13 14 15
h <- "Hello"
h
## [1] "Hello"
hw <- c("Hello", "world!")
hw
## [1] "Hello"  "world!"
paste("Hello", "world!")
## [1] "Hello world!"
## Talking back to the user
h <- "Hello"
yourname <- readline("What is your name?")
paste(h, yourname)
## [1] "Hello Andrie"
# Sourcing a Script
h <- "Hello"
yourname <- readline("What is your name?")
print(paste(h, yourname))
## [1] "Hello "
### Finding help on functions
`?`(paste)
help(paste)
# Navigating the Workspace
ls()
## [1] "h"        "hw"       "x"        "y"        "yourname" "z"
## Manipulating the content of the workspace
rm(z)
ls()
## [1] "h"        "hw"       "x"        "y"        "yourname"
## Saving your work
getwd()
## [1] "C:/Users/Andrie/Documents/GitHub/rfordummies/rfordummies/inst/scripts/3-html"
save(yourname, file = "yourname.rda")
## Retrieving your work
rm(yourname)
load("yourname.rda")

The R session information (including the OS info, R version and all packages used):

sessionInfo()
## R version 3.0.2 (2013-09-25)
## Platform: x86_64-w64-mingw32/x64 (64-bit)
## 
## locale:
## [1] LC_COLLATE=English_United Kingdom.1252  LC_CTYPE=English_United Kingdom.1252   
## [3] LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C                           
## [5] LC_TIME=English_United Kingdom.1252    
## 
## attached base packages:
## [1] stats     graphics  grDevices utils     datasets  methods   base     
## 
## other attached packages:
##  [1] BiocInstaller_1.12.1 ggplot2_0.9.3.1      reshape2_1.2.2       sos_1.3-8           
##  [5] brew_1.0-6           stringr_0.6.2        knitr_1.5            plyr_1.8            
##  [9] Revobase_7.1.0       RevoMods_7.1.0       RevoScaleR_7.1.0     lattice_0.20-27     
## [13] rpart_4.1-2         
## 
## loaded via a namespace (and not attached):
##  [1] codetools_0.2-8    colorspace_1.2-4   dichromat_2.0-0    digest_0.6.4      
##  [5] evaluate_0.5.1     foreach_1.4.1      formatR_0.10       grid_3.0.2        
##  [9] gtable_0.1.2       highr_0.3          iterators_1.0.6    labeling_0.2      
## [13] MASS_7.3-29        munsell_0.4.2      proto_0.3-10       RColorBrewer_1.0-5
## [17] scales_0.2.3       tools_3.0.2
Sys.time()
## [1] "2014-05-13 15:05:18 BST"