Nguyen Cong Minh <[email protected]> writes,
> I used some Mata functions, and used st_view() to get the matrix from
> data, then use st_subview() to get a submatrix from that matrix.
>
> ------ Mata code -------
>
> real matrix V, Yall, Xall
> neq = st_local("neqn")
> st_view(V,., tokens(varname))
> st_subview(Yall,V,.,(1\neq))
> st_subview(Xall,V,.,(neq+1\cols(V)))
>
> It reported the error:
> mysub(): 3250 type mismatch
> <istmt>: - function returned error
I wonder if the error is where Nguyen thinks it is because I see nothing
incorrect in the part of the program quoted. Right now, all we know for sure
is that in Nguyen's subroutine -mysub()- there is a "type mismatch" error,
meaning probably that a string variable appeared where a real was expected,
or vice versa. (Type mismatch could also be complex in place of a real,
string in place of a complex, etc.)
I suggest the following:
. mata
: mata set matalnum on
: <repeat problem>
: mata set matalnum off
With -matalnum- set on, Mata will report the line number in mysub()
where the error occurs and then Ngyuen will be know exactly where to
look.
Don't forget to -mata set matalnum off- afterwards. With -matalnum on-,
optimization cannot be performed, and so programs compiled that way
execute more slowly than those compiled with -matalnum off-.
-- Bill
[email protected]
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