Convert XY data to Dynamic Data?

[Andronicus]

I am trying to perform an FFT, and some signal filtering.  However, my data is in xy format, with the x values being non-equidistant, and non-repetitive (the x deltas however are always approximatly multiples of the smallest delta).  The FFT function etc. all need "dynamic data" data type.

[unclebump]

Try to resample your unevenly spaced data to have continuous spacing. Then convert it to dynamic data.

[Andronicus]

I am attempting to re-sample in software, by doing interpolations.  Seems overly difficalt for what I would imagine in a common task.

[Bob_Y.]

I haven't used it, but I think that this is what the Point by Point VIs are for.  This is a whole set of VIs that are for irregularly spaced data points (often from fieldpoint systems).  ptbypt is used in many of the names so it would be a good term to search for.

Hope that helps,
Bob Young

[unclebump]

Try these links.

http://forums.ni.com/ni/board/message?board.id=170&message.id=80811&requireLogin=False

http://forums.ni.com/ni/board/message?board.id=170&message.id=18690&requireLogin=False

http://forums.ni.com/ni/board/message?board.id=170&message.id=127085&requireLogin=False

[Andronicus]

Thanks.  Here is what I came up with.  See what you think, and feel free to give me feedback

[unclebump]

Could you save that as a 7.0 format file?? Thanks.

[Andronicus]

Try this one.  I think that I managed to save it in V7.0 format.

[unclebump]

Your raw data didn't come with the file so I made a demo.