Re: [R] replace zero in a matrix using random numbers

-project.org Subject: Re: [R] replace zero in a matrix using random numbers ?rnorm tells you that n, the first argument, is the number of observations/random numbers you wish to generate. You asked for 1. So you need to ask for the number of 0's, something like: > a <- matrix(rep(0:1,

Re: [R] replace zero in a matrix using random numbers

?rnorm tells you that n, the first argument, is the number of observations/random numbers you wish to generate. You asked for 1. So you need to ask for the number of 0's, something like: > a <- matrix(rep(0:1, 3), nrow =3) > a [,1] [,2] [1,]01 [2,]10 [3,]01 > a[!a] <-

Re: [R] replace zero in a matrix using random numbers

Hello, Try to get the number of zero values before: i <- er.miRCounts == 0 n <- sum(i) er.miRCounts[i] <- rnorm(n,mean=1, sd=0.1) Also, there is no need for a end-of-instruction ';'. The semi-colon is the instruction separator, so if you put it at the end you will be separating the instructio