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efb2
2013 Dec 09
2
How can I find nonstandard or control characters in a large file?
I have a humongous csv file containing census data, far too big to read into
RAM. I have been trying to extract individual columns from this file using
the colbycol package. This works for certain subsets of the columns, but not
for others. I have not yet been able to precisely identify the problem
columns, as there are 731 columns and running colbycol on the file on my old
slow machine takes