Hi Adrienne,
I guess apply should be better than for loop.
Code like this:
event.gen2 = function(genmat,use1,use2,num,ortho_obs_used){
onerow.gen <- function(one.row, use1....){
one.row[num] <- ifelse(...}
genmat[,num] <- NA ##Add one row with NA values
apply(genmat[-1,],1,onerow.gen,use1=...)}
And R looks TRUE as 1 and FALSE as 0, we may take advantage of it.
Regards,
Wu
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A R learner.
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