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 linear fitting with the data in row		  New Topic  Reply to Topic
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gsinchina

Japan
3 Posts
Posted - 08/06/2016 :  09:48:52 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
rigin Ver. and Service Release (Select Help-->About Origin): origin2016
Operating System:windows 8

Hello~

I have the data in excel files formatting like this:



In the above figure there are 7 rows and each row contains 6 data points coordinated as (x,y).

I would like to linear fit these six data points and get the slope and intercept. For example, 7 linear relationships should be obtained in the data shown above.

How to do the fitting with the rows and how to do the batch linear fitting with them (as I have hundreds of rows in the excel files...)?

Chris D

428 Posts
Posted - 08/08/2016 :  1:51:31 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

You would have to transform your data such that each rows X & Y values become an XY column pair in a new worksheet. That is, each 1 row becomes two columns (1 X, 1 Y).

If you put all XY pair columns into one worksheet, then you can use our Sequential Fit App (http://www.originlab.com/FileExchange/details.aspx?fid=321) to fit all the datasets VERY quickly using the "Line" fitting function found in the "Polynomial" fitting function group.

If you need some help writing a script to transform your data, please send an email to tech@originlab.com and be sure to include your Origin serial number. If you are a demo user, please also include the email address you originally used to download the demo.

Thanks,
Chris Drozdowski
Originlab Technical Support
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