[R] Random sample from a data frame where ID column values don't match the values in an ID column in a second data frame

[David Winsemius]

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
> Sent from the R help mailing list archive at Nabble.com.

Nabble is NOT the home of R help mailing list and it is not its Archive.

https://stat.ethz.ch/pipermail/r-help/

> 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