estimator.nd.sigmaf

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estimator.nd.sigmaf#

estimator.nd.sigmaf(stddev)[source]#

Standard deviation → Gaussian width parameter σ.

Parameters:

stddev – standard deviation

EXAMPLE:

>>> from estimator import *
>>> n = 64.0
>>> ND.sigmaf(ND.stddevf(n))
64.000...

>>> ND.sigmaf(RealField(128)(1.0))
2.5066282746310005024157652848110452530
>>> ND.sigmaf(1.0)
2.506628274631...
>>> ND.sigmaf(1)
2.506628274631...
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