The Origin Forum
File Exchange
Try Origin for Free
The Origin Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ | Send File to Tech support
 All Forums
 Origin Forum
 Origin Forum
 Subtracting a peak from a curve with different x

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Anti-Spam Code:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkUpload FileInsert Image Insert CodeInsert QuoteInsert List
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

 
Check here to subscribe to this topic.
   

T O P I C    R E V I E W
itrarti Posted - 11/22/2017 : 11:55:12 PM
I have to remove a specific peak from a series of photoluminescence spectra since it "superposes" to the tail of a second more important peak. This unwanted peak (laser) has the same intensity and position for all spectra, so I performed a multi-peak fit on one spectra, and now as output I have the curve I shoud subtract for each spectra. Fine.

The problem is: the x axis steps are different between measured spectra and laser "fit" curve, so that if I simply subtract the two y columns, the laser peak is subtracted at the wrong x position.
Is there a way to "contract" coherently the number of x and y points of the "fit" curve to match the ones of my spectra?

I am thinking about a solution since a while with no success
I hope you can help me!
1   L A T E S T    R E P L I E S    (Newest First)
yuki_wu Posted - 11/23/2017 : 02:23:32 AM
Hi,

Do you want to perform subtraction on two curves? If yes, I think you can try Simple Curve Math by selecting Analysis: Mathematics: Simple Curve Math from the menu. More info please refer to this page:
https://www.originlab.com/doc/Origin-Help/Math-SimpleColumnCurveMath

Regards,
Yuki
OriginLab

The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000