Re: Partial list of missing NDArray functionality

[Alois Schloegl]

Hi David,

Please add also the following functions to your (partial) list,
REPMAT.M

From your list, the following functions are available in 
octave-forge/extra/NaN/
mod
rem
std
var
median

as well as a few others like
normpdf
normcdf
norminv
meandev
moment
mad
skewness
kurtosis
center
zscore
harmmean
geomean
trimean
tpdf
tcdf
tinv


Regards,
  Alois


David Bateman wrote:

> Looking into missing NDArray functions compared to matlab in 2.1.57
> (not including min/max and filter which I've converted) I've compiled
> the following partial list 
>
> b = unwrap(a);
> b = cplxpair(a);
> b = mod(a,2);
> b = rem(a,2);
> b = airy(a);
> b = besselj(1,a);
> b = bessely(1,a);
> b = besselh(1,a);
> b = besseli(1,a);
> b = besselk(1,a);
> b = betainc(2,a,a);
> b = erfinv(a);
> b = gammainc(2,a);
> b = legendre(0,a);
> b = std(a);
> b = var(a)
> b = median(a);
> b = convn(a,a);          % Doesn't exist
> b = sort(a);
> b = fftshift(a);
> b = ifftshift(a);
>
> %% This one might be a bug in matlab...
> b = nextpow2(a);
>
> %% Are these really N-D array issues
> b = delaunayn(??);       % Doesn't exist
> b = interp3(??);         % Doesn't exist
> b = interpn(??);         % Doesn't exist
> b = griddata3(??);       % Doesn't exist
> b = griddatan(??);       % Doesn't exist
>
> Some of these functions are in octave-forge and some aren't strictly
> NDArray issues. For example "nextpow2" treats matrix and NDArray args
> as "nextpow2(length(x))" in matlab, whereas octave just crashes with
> an error if the arg isn't a scalar or a vector. Perhaps we should not
> do bug for bug compatiability of this one.
>
> However, most of the functions above are missing NDArray functionality.
> There are probably other functions as well. 
>
> Note that this e-mail is not a criticism, as there are an amazing
> number of functions already converted to be NDArray aware. But rather
> a list of things to do for those that are interested. If you know of
> any other functions to convert perhaps you can add them to the list.
>
> Regards
> David
>
>