Mata: Unexpected End of File

[Joe Prendergast]

Hello,

I'm just learning about Mata so I can use it code OPTIMIZE. I'm stuck because I keep getting "unexpected end of file" errors. Any ideas?

program define mata1
clear

clear mata
 mata
 void myeval(todo,x, y, g, H)
{
    y = x
}
end

Output:

. mata1
note: argument todo unused
note: argument g unused
note: argument H unused
unexpected end of file (end statement missing)

If I put a second "end" at the bottom of the file I get "command end is unrecognized"

Thanks.

[Joe Prendergast]

I'm not sure how to delete a thread, but I found a solution to my problem.

[Joe Prendergast]

Actually still having problems with this. Another example:

program define mata1
clear

sysuse auto
mata:
function linregeval(transmorphic M, real rowvector b,
real colvector lnf)
{
real colvector p1, p2
real colvector y1
p1 = moptimize_util_xb(M, b, 1)
p2 = moptimize_util_xb(M, b, 2)
y1 = moptimize_util_depvar(M, 1)
lnf = ln(normalden(y1:-p1, 0, sqrt(p2)))
}
M = moptimize_init()
moptimize_init_evaluator(M, &linregeval())
moptimize_init_depvar(M, 1, "mpg")
moptimize_init_eq_indepvars(M, 1, "weight foreign")
moptimize_init_eq_indepvars(M, 2, "")
moptimize(M)
moptimize_result_display(M)
end

Output:


. mata1
(1978 Automobile Data)
initial:       f(p) =     -<inf>  (could not be evaluated)
feasible:      f(p) = -12949.708
rescale:       f(p) = -243.04355
rescale eq:    f(p) = -236.58999
Iteration 0:   f(p) = -236.58999  (not concave)
Iteration 1:   f(p) = -227.46735  
Iteration 2:   f(p) = -205.73129  (backed up)
Iteration 3:   f(p) = -195.72216  
Iteration 4:   f(p) = -194.20847  
Iteration 5:   f(p) = -194.18313  
Iteration 6:   f(p) = -194.18306  
Iteration 7:   f(p) = -194.18306  

                                                Number of obs     =         74

------------------------------------------------------------------------------
         mpg |      Coef.   Std. Err.      z    P>|z|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
eq1          |
      weight |  -.0065879   .0006241   -10.56   0.000     -.007811   -.0053647
     foreign |  -1.650029   1.053958    -1.57   0.117    -3.715749    .4156903
       _cons |    41.6797   2.121197    19.65   0.000     37.52223    45.83717
-------------+----------------------------------------------------------------
eq2          |
       _cons |   11.13746   1.830987     6.08   0.000      7.54879    14.72613
------------------------------------------------------------------------------
unexpected end of file (end statement missing)

[William Lisowski]

See post #2 in

https://www.statalist.org/forums/for...-don-t-press-q

[Joe Prendergast]

Thanks, that's helpful. I can get it to run in a do file but not an ado file. I prefer ado, but I'll use do for this.

[William Lisowski]

If you have not already done so, read the fine material in

help [M-1] ado

for advice on using Mata in ado files.