[R] sparse data frame (crsp?)

From: <ivo_welch-rstat8303_at_mailblocks.com>
Date: Mon 25 Jul 2005 - 11:14:05 EST

dear R wizards: does R have the facilities to handle sparse data frames? I am thinking of reading a data base like the daily CRSP data into R, observations being firms, columns being days, data being stock returns. but this will only fit into my memory if I can convince R to not have to store missing observations, and to return NA upon read access to missing observations. pointers appreciated. sincerely, /iaw



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Mon Jul 25 11:17:34 2005

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