R 2.4.1 windows XP I am trying to fill in a matrix with binomial probabilities without using a for loop. I am trying to obtain a value for pbinom using the value stored in column one of the matrix delete. Clearly I am doing something wrong. Please help me understand my error. > delete<-matrix(nrow=31,ncol=2) > delete[1:31,1]<-1:31 > delete[,2]<-sapply(delete[,2], pbinom,delete[,1],30,0) Error in delete[, 2] <- sapply(delete[, 2], pbinom, delete[, 1], 30, 0) : number of items to replace is not a multiple of replacement length Thanks, John John Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics Baltimore VA Medical Center GRECC, University of Maryland School of Medicine Claude D. Pepper OAIC, University of Maryland Clinical Nutrition Research Unit, and Baltimore VA Center Stroke of Excellence
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