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Asked: 2026-06-17T17:06:04+00:00

I am using matlab NE builder to compile a dll file which I call

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I am using matlab NE builder to compile a dll file which I call from C#. The matlab code is confirmed to work in matlab, but when called from c# the following error occurs:

An unhandled exception of type ‘System.Exception’ occurred in
MWArray.dll

Additional information:

… MWMCR::EvaluateFunction error … Subscript indices must either
be real positive integers or logicals. Error in => KalmanFilter.m at
line 108.

The line in question is the following:

plot(data(:, 1), data(:, 2));

I have confirmed that when the line is reached, the variable data has size n by 4, with n > 50, why the statement is supposed to make sense.

Anyone got any experience on this?
Thanks in advance

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1 Answer

  1. Editorial Team

    As far as I know, this issue arise when you name variables as you function names or as MatLAB functions (reserved names).
    Make sure this is not happening.

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