What about the opposite of this, This has been very helpful for me, but at the same time, I needed the opposite of this to..
ie, this to spl_A spl_B spl_C spcs1 1 1 0 spcs2 1 0 1 spcs3 0 1 1 this spl_A spl_B spl_C spcs1 spcs1 spcs2 spcs2 spcs3 spcs3 spcs4 spcs5 spcs5 Thank you -- View this message in context: http://r.789695.n4.nabble.com/how-to-combine-presence-only-data-sets-to-one-presence-absence-table-tp830140p3465121.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.