fitter.rank - Function

get solution rank

Synopsis
rank(id)

Arguments

id	in	the id of a sub-tool
		Allowed:	fitter id
		Default:	0

Returns
integer

Description
Obtain the rank (in SVD sense) of a fit. The constraint method will show the equations that are orthogonal to the existing ones, and which will make the solution possible.

Example

- include 'fitting.g'
- fit := fitter(n=1);		# a fitter for one real unknown
- fit.linear(dfs.functional('hyper',1),1+0*1:6, 1:6)
			# equations are x=1; x=2; ... x=6 
T
- fit.rank()			# actual rank
1

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	Package	utility
	Module	fitting
	Tool	fitter