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chandan11

India
7 Posts

Posted - 01/30/2017 :  03:06:38 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release : OriginPro 2015 Sr1 b9.2.257
Operating System:Windows 10

I have two data sets. In worksheet they are put like, First data set [A(X1), B(Y1)] and second dataset [C(X2), D(Y2)].

Now in Column E I want to have ratio of data in D and data in B at common x-values.

This can also be intrepreted as ratio of (Graph of A vs B) And (Graph of C Vs D).

How can we do this in origin without manually matching the x values in every row ?

Thanks in advance.

-Chandan

Hideo Fujii

USA
1582 Posts

Posted - 01/30/2017 :  12:02:51 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Chandan,

You can try:

1) Highlight all columns, A(X1), B(Y1), C(X2), and D(Y2).
2) Choose "Analysis: Mathematics: Simple Curve Math" menu.
3) In the open tool, choose:

    Operator = Divide
    Reference Data = D(Y)
    Output = (<input>,<new>)
and click OK to run.

Now you see the ratio of curve(B)/curve(D) based on the A(X) dataset. If you want to get the result
based on C(X), you can set the Input1 branch to D(Y), and Reference Data to B(Y).

Does this procedure work for you?

--Hideo Fujii
OriginLab

P.S. In the Simple Curve Math tool's dialog, there is a check box, "Use Common Range Only". If you turn ON
this check box, it produces the result with only overlapped X range, obtained only by interpolation.
Otherwise, the output obtained contains the result of extrapolation, and you can avoid it by this check box.

Edited by - Hideo Fujii on 01/30/2017 2:41:29 PM
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chandan11

India
7 Posts

Posted - 01/30/2017 :  10:51:32 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello Hideo,

It worked perfectly. Thanks alot for the help.

-Chandan

Edited by - chandan11 on 01/30/2017 10:52:12 PM
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