def gibbs_sample(Y,sig,sig_w,iterate,D,F,N,T):
W = np.eye(F)
pb = pb_init(D,F)
Z = draw_Z(pb,D,F,N,T)
if Z_vec(Z,vectorize(pb),D) == 0:
print("draw Z is wrong")
ll_list = []
W_list = []
print("gibbs sample")
for it in range(iterate):
print(it)
#sample Z
print("SAMPLE Z")
Z = sample_Z(Y,Z,sig,sig_w,pb,D,F,N,T)
#sample paintbox
print("SAMPLE PB")
pb = sample_pb(Y,Z,pb,D,F,N,T,res)
W = mean_w(Y,Z)
vec = vectorize(pb)
print("COULD BE SMALL")
print(log_w_sig(W,sig))
ll_list.append(log_data_zw(Y,Z,W,sig) + np.log(Z_vec(Z,vec,D)) + log_w_sig(W,sig))
return (ll_list,Z,W,pb)
def cgibbs_sample(Y,sig,sig_w,iterate,D,F,N,T):
pb = pb_init(D,F)
Z = draw_Z(pb,D,F,N,T)
ll_list = []
#print("gibbs sample")
for it in range(iterate):
#sample Z
Z = sample_Z(Y,Z,sig,sig_w,pb,D,F,N,T)
#sample paintbox
pb = sample_pb(Z,pb,D,F,N,T,res)
W = mean_w(Y,Z)
vec = vectorize(pb)
ll_list.append(log_data_zw(Y,Z,W,sig) + Z_vec(Z,vec,D) + log_w_sig(W,sig))
return (ll_list,Z,W,pb)