On Mar 29, 2012, at 4:22 PM, inkhorn wrote:
When I use that exact syntax
Which you didn't include as context. Please read the Posting Guide.
(with the ID variable names
You are the one the offered "ID" as the column name.
in quotes within the
square brackets after a comma) it just doesn't work.
Well , without a data example it certainly wasn't tested code. Please
read the Posting Guide.
Also, I'm looking for
a random sample, not all possible rows with ID values that don't
match the
second data frame.
Again we do not have the context , but my memory does not include that
as part of the request, but my memory is fallible. .... which I why
we ask everyone to read the Posting Guide.
--
View this message in context:
http://r.789695.n4.nabble.com/Random-sample-from-a-data-frame-where-ID-column-values-don-t-match-the-values-in-an-ID-column-in-a-se-tp4516448p4516866.html
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
AND .....
and provide commented, minimal, self-contained, reproducible code.
--
David Winsemius, MD
West Hartford, CT
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
