Re: [R] Adding across columns ignoring NA

HI,  sum(var1,var2,var3,var4,var5,na.rm=TRUE) #[1] 8 A.K. - Original Message - From: Jin Choi To: "r-help@r-project.org" Cc: Sent: Saturday, July 20, 2013 12:37 AM Subject: [R] Adding across columns ignoring NA I am having difficulty finding a solution to devising an R

Re: [R] Adding across columns ignoring NA

Berend: No. The OP's "variables" appear to be vectors. sum() sums columnwise (vectorwise). Something like rowSums(cbind(var1,var2,var3,var4,var6), na.rm=TRUE) appears to be what is wanted. But of course,Jin Choi appears to need to do some homework -- e.g. by reading the Introduction to R online

Re: [R] Adding across columns ignoring NA

On 20-07-2013, at 06:37, Jin Choi wrote: > I am having difficulty finding a solution to devising an R code to do the > following: > > I have 5 numerical variables and I would like to create a new variable that > is the sum of those 5 variables. However, there are many NA values > throughout the

[R] Adding across columns ignoring NA

I am having difficulty finding a solution to devising an R code to do the following: I have 5 numerical variables and I would like to create a new variable that is the sum of those 5 variables. However, there are many NA values throughout these 5 variables and everytime I run the following code n