| T O P I C R E V I E W |
| shiuyeung.hui |
Posted - 04/02/2007 : 10:20:52 AM
Origin Version (Select Help-->About Origin): 7.5
Operating System: xp
Hello,
I am trying to do a Boltzmann fit on the data below, but the NLFW returns a flat line. I have tried it also with improved initial values for A1 and A2 and Xo as well. Your suggestions would be greatly appreciated.
Thank you!
X Y
-0.11 -3.7011E-11
-0.1 -4.2803E-11
-0.09 -4.5873E-11
-0.08 -4.2543E-11
-0.07 -5.4576E-11
-0.06 -7.9916E-11
-0.05 -3.8446E-10
-0.04 -2.7955E-9
-0.03 -2.3239E-8
-0.02 -3.0477E-8
-0.01 -2.1079E-8
0 -2.4876E-8
0.01 -2.4626E-8
0.02 -2.2184E-8
0.03 -3.5339E-8
0.04 -2.3292E-8
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| 2 L A T E S T R E P L I E S (Newest First) |
| shiuyeung.hui |
Posted - 04/16/2007 : 03:37:13 AM
ok thank you very much. once i have improved all 4 parameters (A1, A2, x0, dx), it seems to match our expected outcomes. |
| larry_lan |
Posted - 04/02/2007 : 10:43:27 AM
Hi Friend:
You just need one more step: Change the initial value for dx to 0.001. 
Larry
OriginLab Technical Services |
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