def computeLikelihood(self, ctx):
"""
call the native code to compute log likelihood
:param ctx: an instance of a ChainContext
:returns: the log likelihood
:raises InvalidLikelihoodException: in case the log likelihood from the
wmapWrapper is smaller than 0.0001
"""
cl_tt =ctx.get(CL_TT_KEY)
cl_te =ctx.get(CL_TE_KEY)
cl_ee =ctx.get(CL_EE_KEY)
cl_bb =ctx.get(CL_BB_KEY)
loglike = -wmapWrapperManager.computewmaplikelihood(cl_tt,cl_te,cl_ee,cl_bb)
if(abs(loglike)<0.0001):
raise InvalidLikelihoodException()
return loglike
from wmap3Wrapper import wmapWrapperManager
import numpy as np
def copyArray(src, trg, index):
lenght= min(len(src),len(trg))
for i in xrange(0,lenght):
trg[i]=src[i,index]
data = np.loadtxt("lensedcls.dat")
size = 1199
cl_tt = np.zeros(size)
cl_te = np.zeros(size)
cl_ee = np.zeros(size)
cl_bb = np.zeros(size)
#
copyArray(data, cl_tt, 1)
copyArray(data, cl_te, 4)
copyArray(data, cl_ee, 2)
copyArray(data, cl_bb, 3)
wmapWrapperManager.setup()
likelihood = wmapWrapperManager.computewmaplikelihood(cl_tt,cl_te,cl_ee,cl_bb)
print likelihood