def setNoise(self, log_sigma):
'''
Set noise other than default noise value
:param log_sigma: logorithm of the noise sigma
'''
self.likfunc = lik.Gauss(log_sigma)
def __init__(self):
super(GPR, self).__init__()
self.meanfunc = mean.Zero() # default prior mean
self.covfunc = cov.RBF() # default prior covariance
self.likfunc = lik.Gauss() # likihood with default noise variance 0.1
self.inffunc = inf.Exact() # inference method
self.optimizer = opt.Minimize(self) # default optimizer
def __init__(self, *data, **kwargs):
super(GPR, self).__init__(*data, **kwargs)
self.mean = kwargs.get('mean', mean.Const(self.samples.y.mean()))
self.cov = kwargs.get('cov', cov.RBF())
self.lik = kwargs.get('lik', lik.Gauss())
self.inf = kwargs.get('inf', inf.Exact())
self.optimizer = kwargs.get('optimizer', opt.Minimize)(self)
def setNoise(self, log_sigma):
'''Set noise variance other than default value'''
self.likfunc = lik.Gauss(log_sigma)
def setNoise(self, log_sigma):
"""explicitly set noise variance other than default"""
self.likfunc = lik.Gauss(log_sigma)