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Rich:
Two questions: did you have that stupid 'enhanced precision'
feature turned ON in TS? If so it actually REDUCES precision.
That could have been the problem.
(The standard install automatically turns on this wierd feature.)
Second, how is the speed of the DLL?
Leslie
Rich Schaaf wrote:
>
> A few words of warning that I hope will save others from tripping over
> similar problems ...
>
> In the past Bob Fulks (and others) have mentioned that the use of
> 32-bit floating point values in TS2000i and TS6 is a problem.
>
> I didn't fully appreciate this until a few days ago when I tried to
> apply the RSquared(14) TS2000i function to a chart of the Emini
> Nasdaq. It's a builtin function and I wasn't using a very long length
> so it should work, right? Wrong.
>
> The values returned by the TS2000i RSquared() function only barely
> resembled the correct values. After digging into it, I found that the
> intermediate values in the RSquared computation were large enough that
> the 32-bit floats were unable to retain enough precision for the end
> result to be useful.
>
> In order to get an RSquared function that calculated correctly, I had
> to write my own as a DLL function that uses 64-bit doubles for the
> intermediate results of the calculation.
>
> Rich
--
Regards,
Leslie Walko
610-688-2442
--
"Life is a tragedy for those who feel, a comedy for those who
think"
Horace Walpole, 4th earl of Orford, in a letter dated about 1770
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