If I understand you correctly, you want to stack the 15 columns on top of
one another? I assuming all the data is numeric?
In this case, convert the data.frame to a matrix and set the dim of the
matrix to NULL.
If df is the data.frame,
df1 <- as.matrix(df)
dim(df1) <- NULL
<[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
09/05/2003 11:07 AM
To: <[EMAIL PROTECTED]>
cc:
Subject: [R] all values from a data frame
Hello,
I've a data frame with 15 colums and 6000 rows, and I need the data in a
single vector of size 90000 for ttest. Is there such a conversion function
in
R, or would I have to write my own loop over the colums?
thanks for your help + kind regards
Arne
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