| T O P I C R E V I E W |
| liliangomez |
Posted - 10/20/2012 : 06:47:17 AM
Origin Ver. and Service Release (Select Help-->About Origin):
Operating System:
Hi
Im trying to run some non linear fittings of experimental data points using a user defined function, but when I try to simulate the function, it doesnīt have the right way, so I guess that Im introducing wrong the function (Bonner Fischer equation),
Y= (0,375*(g^2))*(0,25+0,1079*(J/T)+0,1554*((J/T)^2))/(T*(1+1,4288*(J/T)+0,3563*((J/T)^2)+2,2571*((J/T)^3)))
can somebody tell me what is wrong in my equation?  |
| 3 L A T E S T R E P L I E S (Newest First) |
| liliangomez |
Posted - 10/30/2012 : 11:53:13 AM
thanks for reply.
Problem solved. My independient variable is T, the dependient variable is Y, and I need to determine the parameters g and J. I donīt understand why if I used "," in the experimental data, I have to put "." in the equation, but it works.
again thanks to both for reply |
| greg |
Posted - 10/30/2012 : 11:34:52 AM
Origin should work with your settings, so 0,375 etc. should be fine.
Your function compiles OK, but I do not know which is your Independent variable and which are the parameters.
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| cc261 |
Posted - 10/22/2012 : 04:50:50 AM
0,375 should be 0.375
0,25 should be 0.25
0,1079 should be 0.1079
.... |
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