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From |
Lee Sieswerda <Lee.Sieswerda@tbdhu.com> |

To |
"'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: postfile and post using a large number of items |

Date |
Wed, 11 Jun 2003 17:57:47 -0400 |

This is perhaps an oblique answer to your question. One solution to extracting what you want from a matrix is to cycle through the matrix using a -forvalues- loop and matrix subscripting, storing the results as macros, and posting them as you go. Silly example with auto data: ...first set up tempfile, tempname, postfile, etc.... svyset [weight=weight] svytab rep78 foreign, se matrix myV = e(V) matrix myb = e(b) * The number of columns in the matrix will equal * the number of cells in the table local n = colsof(myb) forvalues x = 1/`n' { local df = e(df_r) local N = e(N) local se = sqrt(myV[`x',`x']) local est = myb[1,`x'] post blah blah blah } This example produces a dataset with all of the proportions and standard errors from the -svytab- table. Regards, Lee Lee Sieswerda, Epidemiologist Thunder Bay District Health Unit Lee.Sieswerda@tbdhu.com -----Original Message----- From: Smith, David W. [mailto:SmithD2@uthscsa.edu] Sent: Wednesday, June 11, 2003 4:23 PM To: 'statalist@hsphsun2.harvard.edu' Subject: st: postfile and post using a large number of items I would like to use postfile and post with a large number of items, such as the rates and covariance matrix after svytab. Is it possible to specify the items as vectors in order to save space and reduce errors? Thanks, David David W. Smith, Ph.D., M.P.H. Associate Professor, Biometry The University of Texas Health Science Center at Houston School of Public Health San Antonio Regional Campus e-mail at Houston: david.w.smith@uth.tmc.edu e-mail at San Antonio: smithd2@uthscsa.edu * * 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/ * * 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/

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