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taddallas / metacom

R package for the analysis of metacommunity structure
GNU General Public License v3.0
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First test matrix does not run #7

Closed jslefche closed 10 years ago

jslefche commented 10 years ago

TestMatrix[[1]] does not run for Metacommunity . Looks like an issue with the coherence function.

taddallas commented 10 years ago

Yea, I've noticed in the past that Coherence fails on a purely nested matrix, since there are no embedded absences to speak of. It's really only a problem in theory though (right?), since no interaction matrix is ever going to be perfectly nested. It's like looking for checkerboards. I might just change the data to make TestMatrices[[1]] not perfectly nested. Problem solved!...unless you disagree and think this is a lazy way to do things?

jslefche commented 10 years ago

Nope that would be my solution! I just thought it might alarm folks if they ran the first test matrix through and Metacommunity() returned an error. Fire away

Jonathan S. Lefcheck Marine Biodiversity Lab Virginia Institute of Marine Science Gloucester Point, VA 23062 +1 (804) 684-7150 www.jonlefcheck.net

From: Tad Dallasmailto:notifications@github.com Sent: ýThursdayý, ýNovemberý ý6ý, ý2014 ý2ý:ý14ý ýPM To: taddallas/metacommailto:metacom@noreply.github.com Cc: Jonathan Lefcheckmailto:jslefche@vims.edu

Yea, I've noticed in the past that Coherence fails on a purely nested matrix, since there are no embedded absences to speak of. It's really only a problem in theory though (right?), since no interaction matrix is ever going to be perfectly nested. It's like looking for checkerboards. I might just change the data to make TestMatrices[[1]] not perfectly nested. Problem solved!...unless you disagree and think this is a lazy way to do things?

— Reply to this email directly or view it on GitHubhttps://github.com/taddallas/metacom/issues/7#issuecomment-62034101.