Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: matrix operation not found


From   "Gao Liu" <gao.liu@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: matrix operation not found
Date   Tue, 9 Oct 2007 13:46:15 -0400

Hi, Statalist:

I tried to join by columns  some matrix stored from previous tabstat
results using the following codes:


forval svc_year=2003/2006 {
                 forval svc_month=1/12 {

                           foreach column in "en_clm_pay_amt pay_amt age" {

                                               if
(`svc_year'!=2003|`svc_month'!=1) {

                                                                  mat
`column'=(`column', `column'_`svc_year'_`svc_month')

                                                  }

                            }

                   }

}

where `column' and `column'_`svc_year'_`svc_month' are matrix and have
been given a value earlier.  But when running, an error message pops
up, indicating that " matrix operation not found, r(501); ". Can
anybody tell me what is the wrong with the code ?

Thank you

Gao
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index