matrix - (R) All data going into 1st row of new column of data frame -


i've got data frame, 1447 obs of 165 variables, , looking add columns processing existing ones. i've got:

resvar <- 111   # column number of response variable (e.g. cpue) in "samples" (the data frame)

and looking log1p column, 111, row row, new column, called "grv" @ end of samples:

samples$grv <- log1p(samples[resvar])

but puts output column grv, row 1, ``c(item1,item2,...item1447)`

class(log1p(samples[resvar])) = data.frame

does know what's going on & why it's not working? if do

dummy <- log1p(samples[resvar])

dummy data.frame row name same row name resvar, column 111's row name. problem?

samples$grv <- log1p(samples[,resvar]) or samples$grv <- log1p(samples[[resva]])


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