?merge
?match
On Tue, Jan 20, 2009 at 8:41 AM, Dry, Jonathan R
<jonathan....@astrazeneca.com> wrote:
> I am relatively new to R and am trying to do some basic data manipulation.
> Basically I have a table (csv - table 1) of data for a set of samples (rows),
> and a second table (table 2) of information about a subset of samples of
> particular interest. I want to pull out the data from table 1 for the
> samples in table 2, either by:
> * Merging the two tables based on a common identifier (SampleID - may
> have a different header in the two tables), and filter for overlapping
> entries (preferred approach)
> * OR filter table 1 for entries where SampleID matches to one in a list
> taken from table 2
>
> Any help would be gratefully recieved.
>
> --------------------------------------------------------------------------
> AstraZeneca UK Limited is a company incorporated in Engl...{{dropped:21}}
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Stephen Sefick
Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.
-K. Mullis
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
