CLsqFit:Fit

The Fit method computes the least squares fit using the current data sample and current fit configuration.

Syntax

bSuccess = CLsqFit:Fit()

where

bSuccess is a success code, with true indicating success and false indicating failure.

If the fit fails, false is returned. Error information can be obtained using GetErrChan and GetErrMsg.

Example

This example creates a CLsqFit object, adds some points, and then computes the fit. if the fit is not successful, the script lists error information and exits.

L = CLsqFit:new()	-- create a CLsqFit object
L:SetNumCoefs( 2 )	-- set 2 coefficients to fit a line
L:AddPt( 3.5, 5.15 )	-- add a point for x = 3.5, y = 5.15
L:AddPt( -12, 14 )	-- add a point
L:AddPt( -2, -4.25 )	-- add a point
bSuccess = L:Fit()	-- Fit the line, check the results
if not bSuccess then	-- if fit was not successful, then...
n = L:GetErrChan()	-- get the error channel
s = L:GetErrMsg(n)	-- get the error message
Exit( Sprintf("Error [%d] %s\n", n, s ) )	-- exit the script and list the error message
end
Printf( "Sdev=%lg", L:GetSigmaFit() )	-- list the standard deviation of the fit
	-- do other things with the fit