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April 1, 2021 04:24
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dirichlet-concat-divergence.py
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## Combined model | |
c_comb = np.asarray([[16,29,4], | |
[16,29,6], | |
[14,30,4], | |
[16,29,3], | |
[16,31,5], | |
[13,29,5], | |
[15,32,5], | |
[15,29,6], | |
[17,31,6], | |
[13,29,4], | |
[15,4,31], | |
[15,3,30], | |
[15,5,31], | |
[16,6,31], | |
[14,5,29], | |
[16,5,30], | |
[15,6,30], | |
[13,6,30], | |
[14,6,31], | |
[16,6,29], | |
[15,7,29]]); | |
counts_comb = np.asarray([49,51,48,48,52,47,52,50,54,46,50,48,51,53,48,51,51,49,51,51,51])[:, None]; | |
idx = np.asarray([0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1]).astype(int); | |
with pm.Model() as model_comb: | |
hyper_param_comb1 = pm.HalfNormal('hyper_param_comb1',10,shape=3); | |
hyper_param_comb2 = pm.HalfNormal('hyper_param_comb2',10,shape=3); | |
param_comb1 = pm.Dirichlet('param_comb1',a=hyper_param_comb1,shape=(N1,3)); | |
param_comb2 = pm.Dirichlet('param_comb2',a=hyper_param_comb2,shape=(N2,3)); | |
param_comb = tt.concatenate((param_comb1,param_comb2),axis=0); | |
print(param_comb.tag.test_value.shape) | |
y_comb = pm.Multinomial('y_comb', n=counts_comb, p=param_comb[idx], observed=c_comb); | |
trace_comb = pm.sample(target_accept=0.90); |
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