| T O P I C R E V I E W |
| 19102208 |
Posted - 01/29/2014 : 09:28:56 AM
Origin Ver. 8
I want do fit data points with a semi-circle fit. Probably I have to define a new function, maybe something like:
y-yc= +/-sqrt(r^2-(x-xc)^2)
What do I have to fill in the dialogues? (Parameter Names, Function,Independent Variables etc).
Thanks for help. |
| 3 L A T E S T R E P L I E S (Newest First) |
| zahraa |
Posted - 01/29/2014 : 3:49:42 PM
Hi Matthias and refereceurs,
I just wanted to add that in order to these fits you would need implicit functions:
http://originlab.com/Index.aspx?go=Products/OriginPro&pid=1939
The implicit functions feature is in Origin 9.0 and above so you may consider upgrading.
Also Matthias, there is a built-in implicit Circle function in Origin 9.0 that can be used to conveniently fit semi circles without having to build your own.
Zahra
Originlab Technical Representative |
| zahraa |
Posted - 01/29/2014 : 10:22:58 AM
Dear Matthias and refereceurs,
To build a fitting function on your own you can use these resources:
http://www.originlab.com/Index.aspx?go=Support/VideoTutorials&pid=1172
http://www.originlab.com/www/helponline/origin/en/UserGuide/User-Defined_Fitting_Functions.html
If you are still having trouble with this, email us at
tech @originlab.com or post back on the forum and we can discuss it further.
Thanks
Zahra
Originlab Technical Representative |
| referenceurs |
Posted - 01/29/2014 : 09:37:17 AM
HELLO 19102208 PLEASE HELP ME
I HAVE A FONCTION TOO AND I NEED HELP
theta = pi * rand(100,1)
x = cos(theta) + 0.1 * randn(100,1)
y = sin(theta) + 0.1 * randn(100,1)
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