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WARNING: added parameter clipping for catching infinity problems [p in (-1e300, 1e300)]

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Max Zwiessele 2013-05-16 13:29:56 +01:00
parent 8bc31d4a9c
commit 835632e985
1 changed files with 4 additions and 3 deletions
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7
GPy/kern/kern.py
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@ -61,7 +61,7 @@ class kern(parameterised):
ax.bar(np.arange(len(ard_params)) - 0.4, ard_params) ax.bar(np.arange(len(ard_params)) - 0.4, ard_params)
ax.set_xticks(np.arange(len(ard_params))) ax.set_xticks(np.arange(len(ard_params)))
ax.set_xticklabels([r"${}$".format(i + 1) for i in range(len(ard_params))]) ax.set_xticklabels([r"${}$".format(i) for i in range(len(ard_params))])
return ax return ax
def _transform_gradients(self, g): def _transform_gradients(self, g):
@ -176,8 +176,8 @@ class kern(parameterised):
prev_constr_ind = [K1.constrained_indices] + [K1.Nparam + i for i in K2.constrained_indices] prev_constr_ind = [K1.constrained_indices] + [K1.Nparam + i for i in K2.constrained_indices]
prev_constr = K1.constraints + K2.constraints prev_constr = K1.constraints + K2.constraints
prev_constr_fix = K1.fixed_indices + [arr + K1.Nparam for arr in K2.fixed_indices] # prev_constr_fix = K1.fixed_indices + [arr + K1.Nparam for arr in K2.fixed_indices]
prev_constr_fix_values = K1.fixed_values + K2.fixed_values # prev_constr_fix_values = K1.fixed_values + K2.fixed_values
# follow the previous ties # follow the previous ties
for arr in prev_ties: for arr in prev_ties:
@ -196,6 +196,7 @@ class kern(parameterised):
return np.hstack([p._get_params() for p in self.parts]) return np.hstack([p._get_params() for p in self.parts])
def _set_params(self, x): def _set_params(self, x):
x = np.clip(x, -1e300, 1e300)
[p._set_params(x[s]) for p, s in zip(self.parts, self.param_slices)] [p._set_params(x[s]) for p, s in zip(self.parts, self.param_slices)]
def _get_param_names(self): def _get_param_names(self):