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Old 06-02-2016, 09:02 AM   #2
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Location: Germany

Join Date: Oct 2008
Posts: 415

Sounds like an error with your input files. MAybe the separators are wrong on one line.

Try reading both files into R / Calc etc and doing some summary statistics. You'll probably find that there is a space not a tab on one line.
colindaven is offline   Reply With Quote