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 syntax is incorrect. I have read the regexpr help
files and search old posts to no avail. I'd be grateful if anyone would show me
the proper syntax for specifying exclusion of certain file types.
Thanks in advance for any help,
Zack
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