How to run a Matlab file which uses functions from .c and .dll files?

Question

Niek 2022-6-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1751440-how-to-run-a-matlab-file-which-uses-functions-from-c-and-dll-files

评论： Niek 2022-6-30

Sittuation:I am trying to use Matlab code for estimating CAViaR-models, the code comes directly from the original authors Engle & Manganelli.See [http://www.simonemanganelli.org/Simone/Research.html under CAViaR: Conditional Autoregressive Value at Risk by Regression Quantiles (with Robert Engle), 2004] for more info.

Problem: There downloaded zip-file contains Matlab files aswell as .c and .dll files. One of the matlab files 'RQobjectiveFunction.m' calls a function SAVloop which likely refers to either the 'SAVloop.c'- or 'SAVloop.dll'-file. I receive the error message "Unrecognized function or variable 'SAVloop'." when the SAVloop function is called: VaR = SAVloop(THETA, BETA, y, VaR(1))

Question: Are there any steps I should take such that the Matlab file knows how to call the c\dll file?.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

James Tursa 2022-6-30

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1751440-how-to-run-a-matlab-file-which-uses-functions-from-c-and-dll-files#answer_997580

编辑：James Tursa 2022-6-30

在 MATLAB Online 中打开

It appears that this may be an older mex routine? Is there a "mexFunction" in the c file? If so, maybe you can just recompile it to produce a mex routine compatible with your current MATLAB version:

mex SAVloop.c

You will need a supported C compiler installed on your computer.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Niek 2022-6-30

This solved my problem, thank you! There was indeed a mexFunction in the c file.

For anyone having a similar problem in the future who does not have a C compiler installed, I used the MinGw-w64 C/C++ compiler which can be downloaded as a Matlab Add-on.

请先登录，再进行评论。