Hi,
I am preparing a quite huge database in Excel, I replaced the empty cells with
"NA", I formatted it like text, and saved the file like a *.txt.
After, in R:
data<-read.table("myfile.txt",header=T,sep="\t")
edit(data)
When doing this I can see that some columns are OK and they have NA cells, but
other columns are not (there are empty cells where there should be NAs).
Surprisingly (at least to me), when I close the "edit window" I can see all the
data in the "R console" (automatically closing that windows makes starting the
visualization of those data in the same R console window) and there are not
empty cells but, nevertheless, some columns have NA values but other ones have
<NA> values.
Why?
Could it possibly cause any problem to the analysis?
Thanks
Best wishes
Simone
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