Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: matrix operations when N exceeds matsize
From
<[email protected]>
To
[email protected]
Subject
Re: st: matrix operations when N exceeds matsize
Date
Tue, 18 May 2010 14:12:37 -0400 (EDT)
One problem is that if W is NxK and M is K x K, W' and M do not
commute. However, the following code gets the matrix into and
out of mata and sort of does what you want:
******************
sysuse auto, clear
mkmat price mpg, mat(W)
matrix M=(1,2 / 3,5)
mata
W=st_matrix("W")
M=st_matrix("M")
WMW=W*M*W'
st_matrix("newmat",WMW)
end
mat list newmat
*****************
Matt Baker
*
* 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/