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Biweight = class Biweight(Kernel) |
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Biweight is a Kernel function between [-1,1]; it is 0 elsewhere.
K( x ) = ( 1-x^2 )^2 if |x| < 1
0 elsewhere
Author: Do Kester
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- Method resolution order:
- Biweight
- Kernel
- builtins.object
Constructor:
- Biweight()
- Constructor.
Using
integral = 16.0/15.0
fwhm = 1.0823922
Methods defined here:
- isBound()
- Return true when the kernel is bound.
All non-zero values are between -1 and +1
- name()
- Return the name of the kernel.
- partial( x )
- Return the partial derivative wrt input value.
Parameters
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x : array-like
the input value
- result( x )
- Return the result for one input value.
Parameters
----------
x : array-like
the input value
- resultsq( xsq )
- Return the result for one input value.
Parameters
----------
x : array-like
the input value
Parameters: x the square of the input value
Methods inherited from Kernel:
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