code0

class pyhf.interpolators.code0(histogramssets, subscribe=True)

Bases: object

The piecewise-linear interpolation strategy.

\[\sigma_{sb} (\vec{\alpha}) = \sigma_{sb}^0(\vec{\alpha}) + \underbrace{\sum_{p \in \text{Syst}} I_\text{lin.} (\alpha_p; \sigma_{sb}^0, \sigma_{psb}^+, \sigma_{psb}^-)}_\text{deltas to calculate}\]

with

\[\begin{split}I_\text{lin.}(\alpha; I^0, I^+, I^-) = \begin{cases} \alpha(I^+ - I^0) \qquad \alpha \geq 0\\ \alpha(I^0 - I^-) \qquad \alpha < 0 \end{cases}\end{split}\]

__init__(histogramssets, subscribe=True)

Piecewise-linear Interpolation.

Methods

_precompute()

_precompute_alphasets(alphasets_shape)