Skip to main content
W
WladimirKazantz1-Visitor
1-Visitor
March 10, 2011
Question

Gaussian peak with a left tail

  • March 10, 2011
  • 2 replies
  • 6176 views

Ok, here one more problem


I imported some data and i want to fit a gaussian peak

That is not a problem. I used genfit with a gaussian distribution function and everything is fine.

But in some peaks I have left and in some others, right tails. I tried many ways by adding to the gaussian function others,

but the results are not good enough. Are ther any sugestions?

Also I would like to ask if it possible to add more fit functions, in Mathcad Prime.

Sometimes genfit take a lot of time to fix it, when the data are not complicated enough.

Thank you for your time.

2 replies

R
RichardJ19-Tanzanite
19-Tanzanite
March 10, 2011
But in some peaks I have left and in some others, right tails. I tried many ways by adding to the gaussian function others,

but the results are not good enough. Are ther any sugestions?

Could you post a worksheet with the problem data and the fit that is not good enough..

W
WladimirKazantz1-VisitorAuthor
1-Visitor
March 10, 2011

Please do not pay attention on the second peak that is on the left of the big one.

If there is something you can't understand please let me explain.

A
AlanStevens19-Tanzanite
19-Tanzanite
March 11, 2011

Might be simpler to use Given ... Minerr. See attached.

Alan

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
March 10, 2011

Wladimir Kazantzidis wrote:

Ok, here one more problem


I imported some data and i want to fit a gaussian peak

That is not a problem. I used genfit with a gaussian distribution function and everything is fine.

But in some peaks I have left and in some others, right tails. I tried many ways by adding to the gaussian function others,

but the results are not good enough. Are ther any sugestions?

Also I would like to ask if it possible to add more fit functions, in Mathcad Prime.

Sometimes genfit take a lot of time to fix it, when the data are not complicated enough.

Thank you for your time.

I think the result depends strongly on guess values.

Terms & ConditionsCookie settingsAccessibility statement