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
Username:
 Password:
Save Password
Forgot your Password? | Admin Options

 All Forums
 Origin Forum for Programming
 Forum for Origin C
 Fitting with integrals with infinitive bounds		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

fredard

Posts
Posted - 06/12/2007 :  4:20:55 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): 7.5
Operating System:XP

Hello,

I would to fit my data with the following integral:

y(x)= integral F(x,t)*P(t,Sigma)dt

between -Infinity and + Infinity and where P(t,Sigma) is the gaussian distribution with mean value t and sigma.

I tried using the examples given in this forum but I have problem because I need to integrate between - infinity and + Infinity

Could you help me ?

Thanks a lot.

Deanna

China
Posts
Posted - 06/12/2007 :  10:33:48 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Would you please see if this post helps? It is about fitting with integral between 0 and infinity.

Deanna
OriginLab Technical Services
Go to Top of Page

fredard

Posts
Posted - 06/13/2007 :  03:36:56 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks. What would be the program in order to integrate from - infinity instead of starting at zero.
thanks
Go to Top of Page

Mike Buess

USA
3037 Posts
Posted - 06/13/2007 :  07:22:35 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Of course it's impossible to start integrating at -infinity. Perhaps you can break your expression into +t and -t parts?

integral (0 to inf) {F(x,t)*P(t,Sigma) - F(x,-t)*P(-t,Sigma)} dt

Mike Buess
Origin WebRing Member
Go to Top of Page
  Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000