Why my R2013b version does not have "nansum","nanmin" or "nanmax"?

Hi everyone,

I don't have any toolbox, but I thought these functions are built-in for 2013b, no?

Thanks, Karen

Answer 1

[per isakson]

These functions comes with the statistical and the financial toolboxes.

See

• in the documentation of the statistical toolbox Summary Statistics for Data with Missing ValuesUsing NaN for missing values
• the File Exchange contribution NaN Suite

[David Young]

nanmin and nanmax in the statistics toolbox are the same as ordinary min and max, I believe

[per isakson]

Yes, min and max are. Exerpt from min.m of R2013a

    NaN's are ignored when computing the minimum. When all elements in X
    are NaN's, then the first one is returned as the minimum.

In the "Tips" section of the documentation of min, I finally found

    The min function ignores NaNs.

Has it always been that way? In R2013a, nanmin is a simple wrapper of min.