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fodao
USA
1 Posts |
 Posted - 07/19/2002 : 12:46:32 PM
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| I need to fit my data using a special function, the Error function. But I can not find it in the fitting box. It's funny that I remember that in the demo there was a category called "special functions" that included the Bessel, the error function etc. Is this and add on for Origin 6.1? Where can I get it? Thank you. |
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easwar
USA
1965 Posts |
Posted - 07/19/2002 : 2:44:22 PM
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Hello,
In ver 6.x, we do have erf() and inverf(). From the Help menu, choose LabTalk, then choose Function Reference. For erf and inverf, look under Statistical Functions, then Statistical Distributions. Or just search for erf and inverf.
In ver 7.0, we have also added the Special Functions chapter from the NAG Library which provides access to many more special functions: http://www.nag.com/numeric/cl/manual/html/S_cl06.html
Easwar
OriginLab.
Edited by - easwar on 07/19/2002 2:50:44 PM |
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eyhavand
Iran
20 Posts |
Posted - 12/02/2018 : 4:12:09 PM
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Origin Ver. and Service Release (Select Help-->About Origin):
Operating System: OriginPro 2018 (64bit), b.9.5.1.195
Hello,
I want to fit a simple power law y=a*x^b. the problem is: y should be (H~s), in which (~) as wild tilde and (s) as the subscript. this variable should be shown in the fitting table as H~s, not y.
I tried the function builder, but I can't type H~s in the correct format. How can I do it?
Thank You!
Amin |
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YimingChen
1684 Posts |
Posted - 12/03/2018 : 09:05:02 AM
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Hi fodao,
Can you double click the fitted table in the graph where you can edit the content of the table to customize the fitted equation? Thank you.
James
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eyhavand
Iran
20 Posts |
Posted - 12/03/2018 : 12:06:42 PM
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Hi James,
thank you, although I hope you have answered my question.
by clicking the fitted table, I can edit the content, but I can't type H~s (See y-axis title in attached). |
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YimingChen
1684 Posts |
Posted - 12/03/2018 : 3:32:35 PM
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Hi,
Can you right click on the table cell and select Set Data Style:Rich Text? Then you can add symbol and subscript to the text. Thank you.
James |
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eyhavand
Iran
20 Posts |
Posted - 12/03/2018 : 5:31:18 PM
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Hi James,
Thank you very much. It works.
for inserting the ~ sign above the variable, I copied the axis title and pasted in the cell. anyway, the problem is solved.
I appreciate you again.
Regards, Amin |
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YimingChen
1684 Posts |
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Topic |
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Fitting with special functions