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Power-User

Join Date: Oct 2008
Location: Gujarat, India
Posts: 153

Any Software or Link for Generating Polynomial Regression for Data?

12/25/2012 7:10 AM

Hello, I am having large number of temperature data from 7 K to 320 K for thermal conductivity of Helium gas. I need to generate the equation that governs these data meaning thermal conductivity at any temperature can be found by the use of this equation. I know from MS Excel by plotting graph and by use of trend line I can do but I want to use much more easy way to generate equation. Is there any free source available that can help me?

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Paresh B. Gujarati
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Guru

Join Date: Oct 2007
Location: India
Posts: 1246
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#1

Re: Any software or link for generating polynomial regression for data?

12/25/2012 7:41 AM
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Participant

Join Date: Nov 2010
Posts: 4
Good Answers: 2
#2

Re: Any Software or Link for Generating Polynomial Regression for Data?

12/25/2012 10:42 PM

I have used Extreme Optimization library for .Net with good success:

http://www.extremeoptimization.com/?gclid=CMDOp8eSt7QCFQuCQgodcyEASg

60-day free trial.

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Associate

Join Date: Dec 2011
Posts: 27
Good Answers: 4
#3

Re: Any Software or Link for Generating Polynomial Regression for Data?

12/26/2012 12:30 AM

Plotting before believing is a good idea. Seeing the fit of the equation to the data is also a good idea. What could be easier than Excel? Is your data not in machine-readable form? Does Excel not support the model you want to use?

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Guru
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#4

Re: Any Software or Link for Generating Polynomial Regression for Data?

12/26/2012 12:59 PM

Have a look at Eureqa. It is designed specifically to extract formulae from raw data.

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Guru
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#5
In reply to #4

Re: Any Software or Link for Generating Polynomial Regression for Data?

12/27/2012 10:20 PM

Yes, it is simple to use and nice program and is worth trying. This program gives multiple options for possible fit and one can select the right one for speed, accuracy and programming simplicity. This is a good work indeed. There is a Video link and it is worth watching this Video to understand its clear working method.

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Prof. (Dr.) Shyam, Managing Director for Sensors Technology Private Limited. Gwalior, MP474001, India.
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