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 How to know the right curve fitting for a graph		  New Topic  Reply to Topic
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mdmorry

Canada
1 Posts
Posted - 06/10/2016 :  10:38:40 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hello,

i have series of histograms and i want to make the right curve fitting for the histogram to get the proper mean and standard deviation

i made something like this, and i am not sure it is the correct fit for the graph
http://www.originlab.com/ftp/forum_and_kbase/Images/histogram.pdf

Shirley_GZ

China
Posts
Posted - 06/12/2016 :  03:51:12 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Mdmorry,

You can first plot a histogram, and then right-click on it to select Go to Bin Worksheet to open the hidden bin worksheet. Select col("Counts") to plot a line graph, and then select "Analysis: Fitting: Rank Models" to open the Rank Models dialog:
http://www.originlab.com/doc/X-Function/ref/funcRank
http://www.originlab.com/doc/Origin-Help/fitrank-multi-func

In this dialog, you can fit and rank multiple functions for one dataset. You can select appropriate function according to the results.

If still problem, please let me know.

Thanks,
Shirley

Originlab Technical Service Team
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