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from __future__ import print_function, division, absolute_import, unicode_literals
from cosmoHammer import getLogger
class RosenbrockModule(object):
"""
A module for the computation of the rosenbrock likelihood
def __init__(self):
self.a1 = 100.0
self.a2 = 20.0
def computeLikelihood(self, ctx):
p = ctx.getParams()
return -(self.a1 * (p.y - p.x**2)**2 + (1 - p.x)**2) / self.a2
def setup(self):
getLogger().info("Rosenbrock setup")
