A Report Generated by knitr

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"