Hi
I am trying to estimate a simple survival model using maximum likelihood technique. However, I am getting the following message
G0165 : Type mismatch or missing arguments [maxutil.src, line 634]
Additional information
Currently active call:
File maxutil.src, line 634, in _max
omat = parnms~x1~relgrad1;
Traceback:
File maxlik.src, line 547, in maxlik
{ x,f,g,h,retcode,Lmlfhess,Lmlitdta,Lmlcpvcp,Lmlhsvcp,_max_dat,
File 02 activity generation v2.gss, line 124, in <main>
{ x,f,g,cov,retcode } = maxprt(maxlik(dataset,0,&lhz,bb));
I have been using GAUSS for quite some time now, but have not been run into such an error before. I would appreciate if you could provide some insight on the matter.
Regards
Annesha
2 Answers
0
accepted
Problem
Most likely what is happening is that parnms on line 634 of maxutil.src
omat = parnms~x1~relgrad1;is a string array. You can verify that the matrix horizontal concatenation operator will cause this error with a simple example:
// Create a simple, 2x1 string array
sa = "alpha" $| "beta";
// Create a 2x1 matrix
mat = { 1, 2 };
// Reproduce 'type mismatch or missing argument' error
tmp = sa ~ mat;In this case, it is a "type mismatch" as the matrix horizontal concatenation operator, ~, only works with matrices.
Resolution
The parnm variable from the error report will be set with the contents of the _max_ParNames global control variable if it is set. So, most likely _max_ParNames is a string array and that is causing the problem.
You can convert a string array to a character vector (a matrix containing text) with the function satocv like this:
// Set to example string array
_max_ParNames = "alpha" $| "beta";
// Convert to a character vector
_max_ParNames = satocv(_max_ParNames);
0
Thank you so much - this is very helpful.
Your Answer
2 Answers
Problem
Most likely what is happening is that parnms on line 634 of maxutil.src
omat = parnms~x1~relgrad1;is a string array. You can verify that the matrix horizontal concatenation operator will cause this error with a simple example:
// Create a simple, 2x1 string array
sa = "alpha" $| "beta";
// Create a 2x1 matrix
mat = { 1, 2 };
// Reproduce 'type mismatch or missing argument' error
tmp = sa ~ mat;In this case, it is a "type mismatch" as the matrix horizontal concatenation operator, ~, only works with matrices.
Resolution
The parnm variable from the error report will be set with the contents of the _max_ParNames global control variable if it is set. So, most likely _max_ParNames is a string array and that is causing the problem.
You can convert a string array to a character vector (a matrix containing text) with the function satocv like this:
// Set to example string array
_max_ParNames = "alpha" $| "beta";
// Convert to a character vector
_max_ParNames = satocv(_max_ParNames);Thank you so much - this is very helpful.