def __init__(self,
kinship,
design,
kinship_cm=None,
kinship_cross=None,
jitter=1e-4):
if kinship_cm is None: kinship_cm = kinship
if kinship_cross is None: kinship_cross = kinship
ff_dim = 2
self.covff = FreeFormCov(ff_dim, jitter=1e-4)
self._K = kinship
self._ZK = sp.dot(design, kinship_cross.T)
self._KZ = sp.dot(kinship_cross, design.T)
self._ZKZ = sp.dot(design, sp.dot(kinship_cm, design.T))
Covariance.__init__(self, kinship.shape[0])
