Let's be clear: The string scalar is used to pass the scalar name. Once
Mata has the name, it can easily access the value.
For Marteen read Maarten.
Nick
[email protected]
Nelson, Carl
Marteen,
Thank you very much for your help.
I was unaware of argument passing through string scalar when passing a
matrix with st_matrix.
This is very helpful information.
Maarten buis [[email protected]]
--- Nelson, Carl wrote:
> Is there a proper way to embed mata in a program to bootstrap
> that will not create this error?
Here is a silly example. More general advise can be found
here: -help m1_ado-
*-------------- begin example ------------
mata: mata clear
sysuse auto, clear
mata:
void foo(string scalar b) {
bb =st_matrix(b)
bb = 2:*bb
st_matrix("b", bb)
}
end
program drop _all
program define silly, rclass
reg mpg foreign
matrix b = e(b)
mata: foo("b")
return scalar b1 = el(b,1,1)
return scalar b2 = el(b,1,2)
end
bootstrap b1=r(b1) b2=r(b2), reps(100): silly
*-------------- end example -----------------
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