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class Tricube( Kernel )	Source

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

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

Tricube( )

Constructor.

Using
     integral = 81.0/70.0
     fwhm = 1.18176021

result( x )

Return the result for input values.

Parameters

• x : array-like
       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

• resultsq( xsq )