Joao Pedro W. de Azevedo [mailto:[email protected]]
> > I'm looking for a function or a routine in Stata7 which would
> > give me the
> > highest scalar of a matrix [n x 1].
> > For example if I have a matrix such as B[6,1]=(1\2\3\4\5\6)
> > this function
> > should give me a scalar or local with the value 6.
Nick Winter
> I imagine Nick Cox has done this already, but if not, the following
> routine will do it:
>
> program define matmax, rclass
> version 7
> args M
> tempname val
> local rows = rowsof(`M')
> local cols = colsof(`M')
> scalar `val' = `M'[1,1]
> local mr 1
> local mc 1
> forval r=1/`rows' {
> forval c=1/`cols' {
> if `M'[`r',`c']>`val' {
> scalar `val'=`M'[`r',`c']
> local mr `r'
> local mc `c'
> }
> }
> }
> di
> di "{txt}Largest value is
> {res}`M'{txt}[{res}`mr'{txt},{res}`mc'{txt}]
> = {res}" `val'
> return scalar largest=`val'
> end
I didn't need to; there is a -matmax- in
Jeroen Weesie's -matfunc- package.
More importantly,
. search matrix
or
. findit matrix
finds extras.
Nick
[email protected]
*
* 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/
