rtoy
commented
1 week ago Imported from SourceForge on 2024-07-07 14:52:59 Created by racinej on 2013-05-28 17:15:10 Original: https://sourceforge.net/p/maxima/bugs/2581/#1dd5
First, let me apologize for submitting the wrong file! And the error is incorrect as well. Perhaps it is best to close this and start a new one?
Regardless, thanks for your patience. I attach the file that is causing issues (and it is not the Lisp error above).
Here is the minimal example that reproduces the problem.
If you set :
ker:gaussian$ b:inf$
the program works fine. the same goes for epanechnikov and sqrt(5).
if you do: ker:utgaussian$ b:3$
The integral on line 52 never terminates: kerfourth_k:integrate(kerfourth(Z)^2, Z, -b, b)$
Thanks again for your patience and suggestions....
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Imported from SourceForge on 2024-07-07 14:52:58 Created by racinej on 2013-05-28 13:25:50 Original: https://sourceforge.net/p/maxima/bugs/2581
Maxima version: "5.28.0" Maxima build date: "2013-04-30 22:52:43" Host type: "i386-apple-darwin12.3.0" Lisp implementation type: "SBCL" Lisp implementation version: "1.1.7"
Hi. First post to maxima (though user for many years) so filter accordingly. I am using maxima so solve a set of equations subject to integral constraints. I have a number of files using similar kernel (weight) functions that run flawlessly. But the attached hangs with a lisp error. Neither myself nor co-author on an R package that uses this input can detect the issue hence the post. The file tgauss_convolution.m crashes while a similar function epanechnikov_convolution.m runs smoothly but we don't see any substantive difference between the two (the first computes a `truncated gaussian convolution of a kernel with the data, the other an epanechnikov convolution of a kernel with the data' for what that is worth).
File attached, advice/guidance/suggestions most appreciated, and thanks in advance for your wonderful contributions to the community!
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