Hi everybody!! I'm trying to assign boolean values to a column in a matrix depending on the number of times present in another column. I have no clue, I have been 2 days looking for a way, if somebody knows what kind of functions I need to use I will really apreciate it.
example: Color Type Mark1 Mark2 Mark3 Red high 139 P alpha blue low 140 P alpha Green high 141 S alpha Yellow low 142 S beta Red high 143 P gamma If we only take into account columns Mark1, Mark2 and Mark3. I would like to ask R to write another column with 0=one; 1=more than one. If alpha is present for more than one Mark 2, so P and S, then I will like to assign value 1 if only for one then assign the value 0. Thanks for your help -- View this message in context: http://r.789695.n4.nabble.com/How-do-I-assign-boolean-o-1-values-to-a-column-tp3544304p3544304.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.
