[R] Running something without a loop when the result from the previous iteration is require for the current iteration

[Wu Gong]

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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