search for: tp4350555p4355679

Displaying 1 result from an estimated 1 matches for "tp4350555p4355679".

2012 Feb 02
9
sqldf for Very Large Tab Delimited Files
Hi All, I have a very (very) large tab-delimited text file without headers. There are only 8 columns and millions of rows. I want to make numerous pieces of this file by sub-setting it for individual stations. Station is given as in the first column. I am trying to learn and use sqldf package for this but am stuck in a couple of places. To simulate my requirement, I have taken iris dataset as an