A few questions about doing a Gaussian Fit

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Discussion Overview

The discussion revolves around questions related to performing a Gaussian fit, particularly in the context of analyzing data from images. Participants explore the definitions and methodologies associated with Gaussian fitting, including its application to rows and columns of data.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant asks whether Gaussian fit and Gaussian regression are the same concept.
  • Another participant inquires about the specific steps involved in performing a Gaussian fit on image data, presenting two potential methods for consideration.
  • There is a request for a clear definition of what constitutes a Gaussian fit, with an emphasis on its application to data fitting and statistical analysis.
  • A participant mentions that fitting data to a bell curve allows for further statistical analysis.
  • Reference to statistical packages that may assist in Gaussian fitting is provided, although no specific methods are detailed.

Areas of Agreement / Disagreement

Participants express a need for clarification on definitions and methodologies, indicating that there is no consensus on the best approach to performing a Gaussian fit or the equivalence of Gaussian fit and regression.

Contextual Notes

Participants have not reached a definitive conclusion on the methods for Gaussian fitting, and there are unresolved questions regarding the appropriate steps to take when analyzing image data.

Who May Find This Useful

This discussion may be useful for individuals interested in statistical analysis, image processing, and data fitting techniques, particularly those exploring Gaussian functions.

btb4198
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A few questions about doing a Gaussian Fit :

1) Is gaussian fit and gaussian regression the same thing ?
2) I have a gaussian function that will return a list of gaussian numbers giving an initial list length. So if you input 5 you will get:
1,2,6,4,1.
My question is if I have an image and I want to do a gaussian fit on the Rows and the Columns and graph them separately.
would I :
A) Add up all values in rows 1- 5, than multiply the value from row 1 to 1, multiply the value from row 2 to 2 , row 3 to 6, row 4 to 1, and row 5 to 1 and then repeat for the columns?
or
B) Add up all the values in my rows, then solve for the mean value, and then I am not sure what would come next ...

or is there something else I should do?
 
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Can you define exactly what a Gaussian fit is?
 
Office_Shredder said:
Can you define exactly what a Gaussian fit is?

When you take data from an image and you fit it into a Bell curve.
Actually when you take any given data.
I am told you do this, because if your data can fit in a bell curve, then you can do other, statistical Analysis to it.
 
Oh cool!
but could someone answer my questions ?
 

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