st: Re: memory for matrices

[Kit Baum <baum@bc.edu>]

1) use findit. If an ado-file is publicly available (including official 
Stata, web sites linked to StataCorp and the SSC archive), findit will 
locate it, and you should not use it. StataCorp also suggests that you 
not use English words for ado-file names, since they might want to use 
them. That rule is sometimes hono(u)red.

2) Use Mata. It allows matrices of any size to overlay the data rather 
than necessarily existing side-by-side with the data with "views". You 
cannot alter the precision with which matrix elements are stored (which 
seems to be what you are asking for) but there is good reason for that. 
StataCorp doesn't want to support a product that is capable of 
generating highly imprecise computations if users ask for them.

Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html

On Jul 27, 2005, at 2:33 AM, Florence wrote:


> Hi, I have some technical questions about writing .ado files for 
> semi-commercial stuff: (1) how do
> you make sure that the names you are giving the .ado files don't 
> conflict with other people's
> program names?  Is there some kind of standard?  (2)  Is there a way 
> to reduce the amount of space
> that matrices take up in memory?  I keep running out of space for my 
> matrices and I'm thinking
> there should be a way to go over the official allocation of memory for 
> matrices, or at least to
> reduce the amount of space they are taking up so that as the amount of 
> matrices in memory
> increases, it does NOT take longer and longer times to process the 
> operations...
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