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Updated sampling and plots to be correct shape, and changed plotting of sampling to be posterior samples p(f*|f), like it used to be, and samples_y to plot samples of p(y*|y)

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Alan Saul 2015-09-10 11:08:28 +01:00
parent 6acf5dcfac
commit ef778f75d4
5 changed files with 41 additions and 29 deletions
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8
GPy/likelihoods/poisson.py
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@ -137,7 +137,7 @@ class Poisson(Likelihood):
"""
return self.gp_link.transf(gp)
def samples(self, gp, Y_metadata=None, samples=1):
def samples(self, gp, Y_metadata=None):
"""
Returns a set of samples of observations based on a given value of the latent variable.
@ -145,5 +145,7 @@ class Poisson(Likelihood):
"""
orig_shape = gp.shape
gp = gp.flatten()
Ysim = np.random.poisson(self.gp_link.transf(gp), [samples, gp.size]).T
return Ysim.reshape(orig_shape+(samples,))
# Ysim = np.random.poisson(self.gp_link.transf(gp), [samples, gp.size]).T
# return Ysim.reshape(orig_shape+(samples,))
Ysim = np.random.poisson(self.gp_link.transf(gp))
return Ysim.reshape(orig_shape)