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Last change
on this file since 9ce5bcb was
342b3dd,
checked in by Paul Kienzle <pkienzle@…>, 7 years ago
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add laplace and cyclic gaussian example distributions in example/weights
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-
Property mode set to
100644
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File size:
465 bytes
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| 1 | import numpy as np |
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| 2 | from scipy.stats import laplace |
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| 3 | |
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| 4 | from sasmodels import weights |
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| 5 | |
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| 6 | class Dispersion(weights.Dispersion): |
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| 7 | r""" |
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| 8 | Laplace distribution |
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| 9 | |
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| 10 | .. math:: |
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| 11 | |
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| 12 | w(x) = e^{-\sigma |x - \mu|} |
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| 13 | """ |
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| 14 | type = "laplace" |
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| 15 | default = dict(npts=35, width=0, nsigmas=3) # default values |
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| 16 | def _weights(self, center, sigma, lb, ub): |
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| 17 | x = self._linspace(center, sigma, lb, ub) |
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| 18 | wx = laplace.pdf(x, center, sigma) |
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| 19 | return x, wx |
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| 20 | |
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