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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

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

Subject |
RE: st: matrix subsetting |

Date |
Fri, 9 Oct 2009 14:14:00 +0100 |

In addition, those still using this matrix language will find extra functions in this trilogy of articles from 1997, 1999, 2000: STB-56 dm79 . . . . . . . . . . . . . . . . . . Yet more new matrix commands (help matcorr, matewmf, matvsort, svmat2 if installed) . . N. J. Cox 7/00 pp.4--8; STB Reprints Vol 10, pp.17--23 commands to produce a correlation matrix, elementwise monadic function of another matrix, selected subsets of matrix rows and columns, vec or vech of a matrix, elements sorted within a vector, matrix from a vector, and commands to save matrices see mata matrix language incorporated into Stata 9.0 STB-50 dm69 . . . . . . . . . . . . . . . . . . Further new matrix commands (help matdelrc, matewm, matmad, matpow if installed) . . . N. J. Cox 7/99 pp.5--9; STB Reprints Vol 9, pp.29--34 collection of new matrix commands providing additional matrix checking, management, element-wise operators, maximum absolute difference, and power STB-39 dm49 . . . . . . . . . . . . . . . . . . . . Some new matrix commands (help matfunc, varfunc if installed) . . . . . . . . . . . J. Weesie 9/97 pp.17--20; STB Reprints Vol 7, pp.43--48 collection of new matrix commands; several for explicit matrices and a few for implicit matrices (i.e., variables) see mata matrix language incorporated into Stata 9 Although it's not explicit above, -matselrc- from STB-56 is a convenience program for selecting particular rows and columns of a matrix. Nick n.j.cox@durham.ac.uk Sergiy Radyakin . mat x = (1,2,3,4 \ 5,6,7,8 \ 9,10,11,12) . mat z = x[1..3,1],x[1..3,3] . mat l z z[3,2] c1 c3 r1 1 3 r2 5 7 r3 9 11 On Thu, Oct 8, 2009 at 6:53 AM, Thomas <tpt21@cam.ac.uk> wrote: > I am trying to extract non-adjacent columns (1 and 3) from a matrix (in > Stata not Mata): > > mat x = (1,2,3,4 \ 5,6,7,8 \ 9,10,11,12) > mat z = x[1..3,(1,3)] > > I get a type mismatch error. What am I doing wrong? * * 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/

**References**:**st: matrix subsetting***From:*Thomas <tpt21@cam.ac.uk>

**Re: st: matrix subsetting***From:*Sergiy Radyakin <serjradyakin@gmail.com>

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