R 3.4.3
OS X

Colleagues

I have a 20K line script in which I encounter an unexpected problem.

If the script detects presence of a particular file USERCODE.txt, it executes:
        source(“USERCODE.txt”)
If that file is not present, the script executes without a problem.

There might be syntax errors in USERCODE.txt; therefore, the code above is 
embedded in a try command:
        try(source(“USERCODE.txt", local=T), silent=T)
followed by:
        ERRORMESSAGE <- geterrmessage()

For unclear reasons, an earlier command is yielding an error message:
        unused argument (\"\\n\")
Despite identifying the exact source of that error, I can’t fix it (and it is 
of no consequence).

Ideally, I would like to clear out the pre-existing error message immediately 
before the “try” command (or perhaps at that particular location where it is 
being created) — but I can’t figure out how to do so.

Any suggestions would be welcome.

Dennis

Dennis Fisher MD
P < (The "P Less Than" Company)
Phone / Fax: 1-866-PLessThan (1-866-753-7784)
www.PLessThan.com

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