Your coded answer looks right, and is represented in a syntactically correct
manner. Your "desired" answer looks ambiguous, and is certainly not
syntactically correct R. If you want ambiguous and vague answers, perhaps you
need to keep a human in the loop.
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Research Engineer (Solar/Batteries O.O#. #.O#. with
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Sent from my phone. Please excuse my brevity.
marlene marchena <marchenamarl...@gmail.com> wrote:
Hi,
I need to repor the index of a min value of each row in a matrix, but I
don't know how to do that when I have more than one min value.
Here is my example
> dat <-
matrix(c(5.4,4.8,5.6,4.8,NA,4.4,4.6,3.4,NA,NA,4,2.4,NA,NA,NA,2),byrow=TRUE,ncol=4)
> dat
[,1] [,2] [,3] [,4]
[1,] 5.4 4.8 5.6 4.8
[2,] NA 4.4 4.6 3.4
[3,] NA NA 4.0 2.4
[4,] NA NA NA 2.0
> k <- apply(dat, 1, function(x) which(x == min(x, na.rm = TRUE)))
> k
[[1]]
[1] 2 4
[[2]]
[1] 4
[[3]]
[1] 4
[[4]]
[1] 4
But I need an output like this
k<- 2 or 4, 4, 4, 4
Someone could help me with this issue.
Thanks in advance,
Marlene.
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