I haven't looked at the rest of the program, but you should have
commented out a hard return after the line: -key(string)-
program define keysortrows
version 9
syntax varlist(min=2) , ///
[ ///
key(string) ///
]
(You don't want to know how often I made that mistake when adding a new
option...)
-- Maarten
--- Ashim Kapoor <[email protected]> wrote:
> Hello everyone,
>
> I have written a small program which sorts rowwise using a "key". I
> am
> new to mata so maybe I am not getting the syntax correct although I
> believe I have the logic of the code right.
> The code gives me an error " invalid syntax " after the execution of
> the line
> "keysortrows(x1 x2), key(k1 k2) "
>
> Could someone please point out my mistake?
>
> Below is the code :-
>
> program define keysortrows
> version 9
> syntax varlist(min=2) , ///
> [ ///
> key(string)
> ]
>
> marksample touse, strok novarlist
>
> mata _keysortrower("`varlist'", "`key'","`touse'")
>
>
> end
>
>
> clear
>
> use data
>
> keysortrows(x1 x2), key(k1 k2)
>
> list
>
> version 9
> mata
> void _keysortrower(string scalar varlist,string scalar key, string
> scalar touse)
> {
>
> real matrix x
>
> st_view(X,.,tokens(varlist),touse)
> st_view(Y,.,tokens(key), touse)
>
>
> for(i=1;i<=rows(X);i++){
> x=(X[i,.]\Y[i,.])
>
> x=sort(x',2)
>
> x=x'
> X[i,.]=x[1,.]
> Y[i,.]=x[2,.]
>
> }
> end
> *
> * 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/
>
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room N515
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
*
* 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/
