Hi, I cannot get rid of this error message:
"Warning messages: 1: In if (data$SP == 1) { : the condition has length > 1 and only the first element will be used 2: In if (data$SP == 1) { : the condition has length > 1 and only the first element will be used 3: In if (data$SP == 1) { : the condition has length > 1 and only the first element will be used > data$A5 [1] 1 1 1" The loop seems to be stuck within the first loop. I have data (in .csv format) witch contains one example of each SP within the data, so the output should look like "123" instead of "111". This example is simplified version just to give you the idea of the problem. What is wrong within my code? I have tried everything imaginable and cannot figure it out. for (i in 1:n) { if (data$SP==1){ data[1:n, "A1"]<- data$A1 <-1 data[1:n, "A2"]<- data$A2 <-1 data[1:n, "A3"]<- data$A3 <-1 data[1:n, "A4"]<- data$A4 <-1 data[1:n, "A5"]<- data$A5 <-1} else if(data$SP==2){ data[1:n, "A1"]<- data$A1 <-2 data[1:n, "A2"]<- data$A2 <-2 data[1:n, "A3"]<- data$A3 <-2 data[1:n, "A4"]<- data$A4 <-2 data[1:n, "A5"]<- data$A5 <-2} else if(data$SP==3){ data[1:n, "A1"]<-data$A1 <-3 data[1:n, "A2"]<-data$A2 <-3 data[1:n, "A3"]<-data$A3 <-3 data[1:n, "A4"]<-data$A4 <-3 data[1:n, "A5"]<-data$A5 <-3} } -Tiff [[alternative HTML version deleted]] ______________________________________________ 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.