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Smoothing function

Posted: Wed Jan 12, 2005 5:40 pm
by 8127944
I am using your smoothing function which in general does a good job. But now i am using it with DateTime x-values and there is a funny effect.

It seems to be a precision problem.

When the DateTime values are incremented by higher steps (for instance days) everything works fine, but when the DateTime values (x-values) are only seconds away from each other the smoothing function become confused.

When i transform all the data lets say to the year 1900 it works a little bit longer but as soon as i derease the increments between the single datapoints you will get the same problems.

You can produce similar effects without using the DateTime datatype. You only have to use very high x-values with very low increments between the different x-valuse. Thats why I guess it is a precision problem.

I hope you can reproduce this effect, Markus.

Posted: Thu Jan 13, 2005 11:25 am
by narcis
Hi Markus,

Thanks for reporting this bug, I have added it to our deffect list to be fixed for future releases.

Posted: Thu Feb 24, 2005 10:07 am
by 8127944
I have downloaded the newest version now, and sadly this bug has not been corrected.

Do you have any idea, when we can expect a bugfix for this point?

Thanks for your assistance.

Markus

Posted: Thu Feb 24, 2005 10:42 am
by narcis
Hi Markus,

Yes, you are right. I can see it (TV52010301) hasn't been fixed yet.
Do you have any idea, when we can expect a bugfix for this point?
I'm afraid not. Hope it's fixed for the next releases, please be aware to it's release notes.

Posted: Thu Feb 24, 2005 10:49 am
by 8127944
Any idea for the next release date?

Posted: Thu Feb 24, 2005 10:54 am
by narcis
Hi Markus,

The new release will be TeeChar for .NET v2 and it will be released before the end of this quarter but I can't tell you if the bug you reported will be included as it hasn't been fixed yet.