LabView code for Allan Variance?

[RFB-LMCO]

Is there a LabVIEW tool for Allan Variance?

[shahina]

Hello,

There is no single VI that computes Allan Variance, but you can definitely code it yourself using Analysis VIs (under All Functions -> Analyze -> Mathematics -> Probability and Statistics and others).

Thanks and have a great day!
Shakhina Pulatova
Applications Engineer
National Instruments

[HansjoergScherer]

You will find a library called Allan_Statistics.llb
under (NI path):
NI Home > NI Developer Zone > Development Library > Measurement and Automation Software > LabVIEW > Development System > Fundamentals > Graphs and Charts
or (URL):
http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=EF32F4D54B4A211CE0340003BA230ECF&p_node=DZ52028&p_source=external

Have fun - any feedback to the author about the usefulness of this tool is appreciated!

[suethechemist]

Anyone care to send me images (screen capture) of the Allan variance code found at the url given above?  I'm using LabVIEW 6i (6.0.2?) and can't open it...  I'll contact the author if this is going to take too much effort - it's been a few years since he posted though.

[GerdW]

Hi suetheche...,

here it comes in LV6.0. I just converted the actual calculation vi and change the comments from German to English.

[suethechemist]

I never did get round to saying thank you GerdW - so thankyou!

Haven't had a chance to try it out yet either, but it was much appreciated.

I'm suethecheMIST by the way, but I quite like suetheche, has a ring to it!

[Subliminal]

I reworked this code and tested it against Stable 32. 

[Subliminal]

Here's some pictures of the VI's.

[GerdW]

Hi Subliminal,

you should really clean up your code before uploading

I just changed 2 of those vis (allan-variance-dynamic.vi and calc_allan-variance.vi), the rest is up to you! (removing sequences, especially the stacked ones!; removing unneeded for loops, unneeded operations like deleting twice the first element, replacing constant math operations by constants - even when LV8+ is optimizing them anyway)