As Peggy notes, installing and running Rattle takes only three "commands" in R:
install.packages("rattle",
dependencies=c('Depends', "Suggests"))
library(rattle)
rattle()Although not necessary, the "Suggests" option above can avoid Rattle's annoying requests for more packages as you click through its GUI; the downside is the time to download and install about 900 packages. Below ("Read more >>") is a link to a video of me running through the three lines above:
download/install Rattle
For those whose IT departments restrict installing R and RStudio on company equipment, this presentation used the software on a USB drive. The
first minute or so of the video shows me setting up the shortcut on the USB drive so RStudio
runs without a bunch of confusing questions, especially for a newbie. If you have R and RStudio installed
on your computer already, you can fast forward through the first minute.
Peggy
put her three lines of code into a script called ‘Rattle.R’. That’s the file I
double-click around the 1:10 mark. You can see the three lines of the script in
the upper left pane of RStudio.
I run
the first line starting at 8:17 am, which finishes at 9:32 am (the 1:42 mark in
the video). Plenty of time to read the newspaper.
Then I
run the second line which, despite the “Depends” and “Suggests” settings above,
has to download and install yet another package, GTK+. (There are reasons why
that’s necessary, but not important right now.) That takes just a few minutes.
Then I
run the third line, which fires up the Rattle user interface (GUI). It’s a little
hard to see, but the Rattle GUI shows up as another process running in the
taskbar.
At this
point you can start using rattle/rpart per Peggy’s presentation. The links to our three presentations are reproduced here for convenience:
Contact me if questions.
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