numeric inputs to sweep produce NaN...

I have two inputs to sweep which are numeric (with a few NA's) but the
output is NaN. How Why?
sum(!is.numeric(unlist(protquant)))
[1] 0
sum(!is.numeric(normalize))
[1] 0
normprotquant <- sweep(protquant, 2, normalize, "-" )
sum(is.nan(unlist(normprotquant)))
[1] 31

version R 3.3.0

best regards Witold
Witold Eryk Wolski
On May 24, 2016, at 8:49 AM, Witold E Wolski <wewolski at gmail.com> wrote:

I have two inputs to sweep which are numeric (with a few NA's) but the
output is NaN. How Why?

sum(!is.numeric(unlist(protquant)))
[1] 0
sum(!is.numeric(normalize))
[1] 0
normprotquant <- sweep(protquant, 2, normalize, "-" )
sum(is.nan(unlist(normprotquant)))
[1] 31

Post output of dput(head(protquant)) and dput(head(normalize))
version R 3.3.0

best regards Witold
-- 
Witold Eryk Wolski

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