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Fitting xyz data to find a,b,c(parameter)
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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
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