Dave Evens wrote:
Dear All,
I have a list of dataframes, each cell in every
what is a cell?
dataframe (after I have cleaned up the dataframes) is
either real or NA but have class character (I think).
I would like to know how to change the class of every
cell without using a for-loop. I currently have this
dataframes <- sapply(1: no.of.subs, function(k)
apply(dataframes[[k]], 2, function(x) {
if(class(x)=="character") x <- as(x, "numeric"); x }))
but this neither changes the cells to numeric nor
keeps the dataframes in a list.
It creates one dataframe with number of rows=(no of
rows in a dataframe*no of colums) and number of
columns = no.of.subs
Can someone please help? Thanks in advance for any
help.
A simple way is
data.frame(sapply(X, as.numeric))
but I guess the real problem is some steps before. You should take a
look why you got character vectors in your data.frame rather than
numeric ones.
Uwe Ligges
Dave
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