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
[email protected]
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 <[email protected]> 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?
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