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Data mining libraries for .NET

I'm working on a stand-alone software application right now that needs a couple of relatively simple analytic routines, PCA and Agglomerative Hierarchical Clustering , for a dataset with just a few thousand records.  The application itself is in VB.NET and I was looking for a suitable math/stats/data-mining library that I could call from .NET to do the number crunching.  So far, I've not had much success.

These routines are simple enough that I can code them if necessary but I would rather save the development/maintenance time and hook into something that's already built and heavily  tested for a reasonable fee.  

I have to be able to distribute the library as part of a commercial application so I need access to appropriate commercial licensing for a reasonable fee.  

What has worked well for you?

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Permalink Reply by Stephanus van Schalkwyk on September 26, 2012 at 3:57pm

Have you looked at R and RdotNet? http://rdotnet.codeplex.com/

Step van Schalkwyk

Permalink Reply by Andrew Gibson on September 26, 2012 at 4:14pm

Only briefly as I was (at least originally) looking for something more specific (PCA and clustering).

Have you had success using this combination ?  Any tips or watchouts for me ? 

Permalink Reply by Andrew Gibson on October 5, 2012 at 3:35pm

Update:  I got back to this today and, after dealing with an issue running 32-bit R and VB.NET defaulting to a 64 bit build :-),  it does seem to work very well indeed.

Data moves between .NET and R seamlessly (at least for the relatively small vectors I have to deal with).   I'm already running PCA and cluster analysis appears to be only slightly harder.  

Great tip - thanks Step.

Permalink Reply by Stephanus van Schalkwyk on October 6, 2012 at 11:27am

Always welcome. Very pleased it works for you. Keep us posted about large vector performance if you would.

Regards,

Step

Permalink Reply by jwinburnnc on September 26, 2012 at 5:39pm

Hi Andrew,

Have you looked at this?

http://mathnetnumerics.codeplex.com/

Jim

Permalink Reply by Andrew Gibson on September 27, 2012 at 6:59am

Thanks for the suggestion Jim.  

I checked out the API reference (http://api.mathdotnet.com/) and while it seems to have a sound set of math/stats  functions that are more advanced than I get natively from .NET I don't see much on the Stats side beyond summary statistics (average, median, min, max, standard deviation etc.)   

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