inverse of which()
That's exactly what I want! Thanks! -Ed
On Wed, Feb 27, 2019 at 5:14 PM David L Carlson <dcarlson at 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 at r-project.org> On Behalf Of Ed Siefker Sent: Wednesday, February 27, 2019 5:03 PM To: r-help <r-help at 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? Thanks -Ed
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