Dear all,
I have an ASCII file where records are separated by a blank. I would like to
read those data; however, only the data in rows 1, 3, 5, 7, ... are
important; the other lines (2,4,6,8,....) contain no useful information for
me.
So far I used awk/gawk to do it:
gawk '{if ((FNR % 2) != 0) {print $0}}' infile.txt > outfile.txt
What is the recommended way to accomplish this in R?
Simply reading the whole file, and deleting all the even-numbered lines is
not straightforward since these lines have different length (whereas lines
1,3,5,7,... have the same length).
I 'RSiteSearched' for "read every second line from a file" but this search
did not yield the desired result.
Also trying out the arguments nrows and skip from read.table() did not
help.
Maybe someone knows an easy way to do it from within R? -- of course not
using system("gawk ....") :-)
If not, it does not matter too much since I get the job done easily with
awk.
Thanks,
Roland
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