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leejuyeon
Republic of Korea
4 Posts |
 Posted - 06/09/2022 : 9:55:15 PM
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Hello
I have the following problem:
z=a+bx+cy
I have a xyz-dataset and i need to find a,b,c parameter.
I have no idea to solve this problem.
Sould I have to do 'nonlinear implicit curve fit'? Or should I have to do 'multiple linear regression'?
Then, should I need to set my 'x, y, z-dataset' as 'x1, x2, y-data' ???? Or should I need to set my 'x, y, z-dataset' as 'x, y, z-data' ????
should I need to set function type as 'equations : f=a+bx+cy-z' ???
Or should I need to set fuction type as 'LabTalk Scrip'??? But I have no idea to make a script.
Also, I followed this post and I tried a lot AND failed. (POST: https://my.originlab.com/forum/topic.asp?TOPIC_ID=1734 )
Please help me. This problem is killing me. Please... Help me ASAP...
Also, if you have something misunderstand, I wil explain.
Thank you so much. Have a good day.
leejuyeon |
Edited by - leejuyeon on 06/09/2022 10:17:08 PM |
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Shirley_GZ
China
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leejuyeon
Republic of Korea
4 Posts |
Posted - 06/10/2022 : 12:23:07 AM
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Hi, Shirley Tian
Thank you for your reply.
I understood about nonlinear cureve fit.Thank you so much.
Well, I am wondering about..... what kind of 'FUNCTION TYPE' to choose.
Can you answer me what kind of 'FUCTION TYPE' I should choose?
After that, how do I set up the equation (or script or sth else)?
I'm in a bit of a hurry. Please answer me ASAP.
Thank you.
leejuyeon
quote:
Originally posted by leejuyeon
Hello
I have the following problem:
z=a+bx+cy
I have a xyz-dataset and i need to find a,b,c parameter.
I have no idea to solve this problem.
Sould I have to do 'nonlinear implicit curve fit'? Or should I have to do 'multiple linear regression'?
Then, should I need to set my 'x, y, z-dataset' as 'x1, x2, y-data' ???? Or should I need to set my 'x, y, z-dataset' as 'x, y, z-data' ????
should I need to set function type as 'equations : f=a+bx+cy-z' ???
Or should I need to set fuction type as 'LabTalk Scrip'??? But I have no idea to make a script.
Also, I followed this post and I tried a lot AND failed. (POST: https://my.originlab.com/forum/topic.asp?TOPIC_ID=1734 )
Please help me. This problem is killing me. Please... Help me ASAP...
Also, if you have something misunderstand, I wil explain.
Thank you so much. Have a good day.
leejuyeon
leejuyeon |
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Shirley_GZ
China
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Topic |
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Fitting xyz data to find a,b,c(parameter)