Navigation

Global	Documentation
Home	Manual
Readme	Glossary
Notes	Design
Examples	Classes
	Trouble
	Style

class Triweight( Kernel )	Source

Triweight is a Kernel function between [-1,1]; it is 0 elsewhere.

  K( x ) = ( 1 - x² )³ if |x| < 1 else 0

Triweight( )

Constructor.

Using
     integral = 32.0/35.0
     fwhm = 0.908404

result( x )

Return the result for input values.

Parameters

• x : array-like
       input values

resultsq( xsq )

Return the result for squared input values.

Parameters

• x : array-like
       the squares of the input values

partial( x )

Return the partial derivative wrt the input values.

Parameters

• x : array-like
       the input values

isBound( )

Return True

name( )

Return the name of the kernel

Methods inherited from Kernel