Hi R-users,
I want to apply a function to each column of a data frame that is numeric.
Thus I tried to check it for each column first:
> apply(df, 2, function(x) is.numeric(x))
A60 A64 A66a A67 A71 A75a A80
A85 A91 A95 A96 A97 A98 A99
FALSE FALSE FALSE FALSE FALSE FALSE FALSE
FALSE FALSE FALSE FALSE FALSE FALSE FALSE
I get only FALSE results although the variables are numeric. When I try the
following it works:
> is.numeric(df$A60)
[1] TRUE
What am I doing wrong?
TIA
Mark
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