[ncl-talk] Availability of the speidx() function before 6.4 release?

[Mary Haley]

Hi Bill,

You can find some a link to the C code here, which is the same C code that
the NCL one was wrapped on top of:

https://cran.r-project.org/web/packages/SPEI/index.html

We unfortunately had to make the decision to pull the speidx code from NCL,
because the C code was deprecated by the original author(s). There's a
known issue in the code that occasionally causes Nans (not-a-number) to
show up because of a divide-by-0 in some cases. They've fixed the problem,
but only through a pure R interface they've created.

We will keep a "hidden" version of the function in NCL, when 6.4.0 is
released, but we won't advertise or support it.  It will mainly be there in
the case that it might work for some people.

I've emailed the author of the code to see if we can get an updated C
version, but I haven't heard anything back.

--Mary


On Fri, Sep 2, 2016 at 8:24 AM, Capehart, William J <
William.Capehart at sdsmt.edu> wrote:

> Hi Dennis, Mary et al.
>
>
>
> Is it possible to provide the source code for the speidx() function for
> the SPEI that is due out with ncl 6.4?  I saw that the nws heat index code
> has been provided on the NCL web manual pages?  Can this also be done for
> speidx()?
>
>
>
> Cheers and Thanks Much
>
> ================================================================
>
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>
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