[R] inverse of which()
eb@15242 @end|ng |rom gm@||@com
Thu Feb 28 16:26:13 CET 2019
That's exactly what I want! Thanks!
On Wed, Feb 27, 2019 at 5:14 PM David L Carlson <dcarlson using tamu.edu> wrote:
> I'm not sure I completely understand your question. Would using grepl() instead of grep() let you do what you want?
> David L Carlson
> Department of Anthropology
> Texas A&M University
> College Station, TX 77843-4352
> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Ed Siefker
> Sent: Wednesday, February 27, 2019 5:03 PM
> To: r-help <r-help using r-project.org>
> Subject: [R] inverse of which()
> Given a vector of booleans, chich() will return indices that are TRUE.
> Given a vector of indices, how can I get a vector of booleans?
> My intent is to do logical operations on the output of grep(). Maybe
> there's a better way to do this?
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