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legurgel
Brazil
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 Posted - 11/02/2014 : 7:05:49 PM
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Origin Ver. 9.1 and Service Release 2 (Select Help-->About Origin):
Operating System: windows 8.1
I would like to do a non-linear regression analysis using a extended Langmuir model qe,1 = (qmax,1*b1*Ce,1)/(1+b1*Ce,1+b2*Ce,2)
There are two independent variables (Ce,1 = x1 and Ce,2 = x2). Origin has to use both x1 and x2 in the calculation to generate a fitted curve.
How do I have to proceed? |
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Kathy_Wang
China
159 Posts |
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legurgel
Brazil
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Posted - 11/03/2014 : 09:31:04 AM
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Hi Kathy,
I followed the tutorial that you mentioned and I have one more doubt.
Why do the origin generate two graphics after NL regression analysis (in the sheet of NL regression results)?
Thank you.
Leandro |
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Kathy_Wang
China
159 Posts |
Posted - 11/04/2014 : 12:09:49 AM
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Do you mean there are two "Fitted Curve Plot"? That is because there are two independent variables and the built-in report sheet will plot them separately (Y vs X1 and Y vs X2). If you want to plot them together, you could go to the FitNLCurve1 worksheet to find the data for fitted curve plot.
Kathy
Originlab |
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legurgel
Brazil
Posts |
Posted - 11/04/2014 : 05:37:52 AM
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Yes, I was taking about the fitted curve plot.
Thank you very much. I will make some simulations and if I have any doubt I will contact you again.
Leandro |
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Topic |
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Multiple independent variables for NL regression