Re: [R] calculate column means when missing data is present

27 November 2007 1:59 p.m. > To: r-help > Subject: [R] calculate column means when missing data is present > > # Hello, > > # I have a matrix that contains some missing values denoted by NA. > # I would like to calculate the mean for each column and not > have the # NA value

Re: [R] calculate column means when missing data is present

colMeans(X,na.rm=T) ?colMeans 2007/11/27, Luke Neraas <[EMAIL PROTECTED]>: > # Hello, > > # I have a matrix that contains some missing values denoted by NA. > # I would like to calculate the mean for each column and not have the > # NA values included. here is a sample matrix "X" below. > > >

[R] calculate column means when missing data is present

# Hello, # I have a matrix that contains some missing values denoted by NA. # I would like to calculate the mean for each column and not have the # NA values included. here is a sample matrix "X" below. c1 <- c(1,4,3,2,NA,2,5,6,4,2) c2 <- c(1,3,6,NA,NA,2,9,6,1,2) c3 <- c(2,4,2,NA,4,2,NA,6,3,5)