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/
