Re: st: compiling mata code

[Oleksandr Shepotylo <shepotil@econ.umd.edu>]

Actually, after experimenting with the code for a while I found that it 
stops when loading the saved matrix at this line:

mata matuse L:\FDI\Out\weights2rd

Does it mean that I can not load  matrix inside the function?



Oleksandr Shepotylo wrote:


> Hi,
>
> I want to write a mata function that will take an existing variable X  
> from the loaded dataset,
> multiply it by matrix W that also exist, and create a new stata 
> variable Y=W*X .
>
> I wrote  a code included below which works fine when I substitute my 
> arguments by real variable names "X" and "Y" but does not want to be 
> compiled as it is.
>
> mata:
> function spatlag(string scalar index, string scalar windex)
> {
> X=J(0,0,.)
> Y=J(0,0,.)
> mata matuse L:\FDI\Out\weights2rd
> st_addvar("float", windex)
> st_view(Y,., windex)
> st_view(X,., index)
> Y[.,.]=(I(11)#W)*X
> }
> mata mosave spatlag(), dir(PERSONAL)
> end
>
> It stops at line:  st_addvar("float", windex).
>
> Any suggestions about what is wrong with my code?
>
> Thanks,
>
> Oleksandr.
>
>
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