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I have the following bit of code and when I run it, I get the error message "Undefined function 'nansum' for input arguments of type 'double'."

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Emma 2012-10-3

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采纳的回答： Walter Roberson

I have the following bit of code and when I run it, I get the error message "Undefined function 'nansum' for input arguments of type 'double'." I am not sure how to address this. As far as I know, 'nansum' is a general Matlab function, and this error typically comes up when a function is not in the working directory.

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Walter Roberson 2012-10-3

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nansum() is not a general MATLAB function: it is part of the Statistics toolbox.

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Emma 2012-10-3

Ok, that definitely changes how I will approach this.

Thank you very much for pointing that out!

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