Displaying errors with sweave

Question

I\'m writing some R notes with Sweave and would like to show common errors. For example,

<>=
x = 5
#Case matters!
x*X
@
         


        

Answer 1

As Shane suggests, use

<> 

for the code that will error, but you want to display, and then again with

<> 

but with the same code wrapped in a try.

There's an example here: http://tolstoy.newcastle.edu.au/R/help/05/09/11690.html