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| From | "Airey, David C" <david.airey@vanderbilt.edu> |
| To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
| Subject | Re: st: transpose question |
| Date | Fri, 22 Jul 2011 12:33:20 -0500 |
. Thank you! Where does one start to understand use of Mata for data manipulation in the documentation? Don't say at the beginning. :) -Dave > Once you work out the syntax to move data into Mata matrices, all the manipulation in Mata is _much_ easier than handling matrices in Stata. > > Stata's (and Mata's) matrix cross-product functions in many cases allows you to work with a K x K matrix, avoiding holding a larger K x N matrix. > > John > > On Jul 21, 2011, at 4:41 PM, Airey, David C wrote: > > > . > > > > Stata's data tables are limited to 32,767 variables. > > > > In Mata, matrices are limited only by the amount of memory on your computer. > > > > For very large row column transpose problem, do other users > > break the data set into smaller pieces, transpose and then put it back > > together in Stata? Or do you somehow use Mata? > > > > -Dave * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/