Do it in a two step process since you want the negation.
x - c('file1.xyz', 'file2.xml', 'file3.abc')
x[-grep(xml$, x)]
[1] file1.xyz file3.abc
On Wed, Oct 1, 2008 at 12:33 AM, zack holden [EMAIL PROTECTED] wrote:
Greetings R list,
I am stuck on a simple syntax problem. I want to list
Greetings R list,
I am stuck on a simple syntax problem. I want to list all files in a directory,
excluding files of a certain type. I have tried pattern matching as follows:
a - list.files(data, full.name = TRUE, pattern != .xml) # exclude all .xml
files
The warning returns that my
2 matches
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