Drop internal uses of deprecated Model.initial_point method

Author: ricardoV94

pymc/backends/base.py

@@ -70,9 +70,9 @@ def __init__(self, name, model=None, vars=None, test_point=None):
         # Get variable shapes. Most backends will need this
         # information.
         if test_point is None:
-            test_point = model.initial_point
+            test_point = model.recompute_initial_point()
         else:
-            test_point_ = model.initial_point.copy()
+            test_point_ = model.recompute_initial_point().copy()
             test_point_.update(test_point)
             test_point = test_point_
         var_values = list(zip(self.varnames, self.fn(test_point)))

pymc/model.py

@@ -1538,7 +1538,7 @@ def profile(self, outs, n=1000, point=None, profile=True, *args, **kwargs):
         """
         f = self.makefn(outs, profile=profile, *args, **kwargs)
         if point is None:
-            point = self.initial_point
+            point = self.recompute_initial_point()
 
         for _ in range(n):
             f(**point)
@@ -1697,7 +1697,7 @@ def point_logps(self, point=None, round_vals=2):
         Pandas Series
         """
         if point is None:
-            point = self.initial_point
+            point = self.recompute_initial_point()
 
         return Series(
             {

pymc/sampling_jax.py

@@ -171,7 +171,8 @@ def sample_numpyro_nuts(
     print("Compiling...", file=sys.stdout)
 
     rv_names = [rv.name for rv in model.value_vars]
-    init_state = [model.initial_point[rv_name] for rv_name in rv_names]
+    initial_point = model.recompute_initial_point()
+    init_state = [initial_point[rv_name] for rv_name in rv_names]
     init_state_batched = jax.tree_map(lambda x: np.repeat(x[None, ...], chains, axis=0), init_state)
 
     logp_fn = get_jaxified_logp(model)

pymc/step_methods/hmc/base_hmc.py

@@ -102,7 +102,7 @@ def __init__(
         # size.
         # XXX: If the dimensions of these terms change, the step size
         # dimension-scaling should change as well, no?
-        test_point = self._model.initial_point
+        test_point = self._model.recompute_initial_point()
 
         nuts_vars = [test_point[v.name] for v in vars]
         size = sum(v.size for v in nuts_vars)

pymc/step_methods/metropolis.py

@@ -161,7 +161,7 @@ def __init__(
         """
 
         model = pm.modelcontext(model)
-        initial_values = model.initial_point
+        initial_values = model.recompute_initial_point()
 
         if vars is None:
             vars = model.value_vars
@@ -425,7 +425,7 @@ def __init__(self, vars, order="random", transit_p=0.8, model=None):
         # transition probabilities
         self.transit_p = transit_p
 
-        initial_point = model.initial_point
+        initial_point = model.recompute_initial_point()
         vars = [model.rvs_to_values.get(var, var) for var in vars]
         self.dim = sum(initial_point[v.name].size for v in vars)
 
@@ -510,7 +510,7 @@ def __init__(self, vars, proposal="uniform", order="random", model=None):
         vars = [model.rvs_to_values.get(var, var) for var in vars]
         vars = pm.inputvars(vars)
 
-        initial_point = model.initial_point
+        initial_point = model.recompute_initial_point()
 
         dimcats = []
         # The above variable is a list of pairs (aggregate dimension, number
@@ -710,7 +710,7 @@ def __init__(
     ):
 
         model = pm.modelcontext(model)
-        initial_values = model.initial_point
+        initial_values = model.recompute_initial_point()
         initial_values_size = sum(initial_values[n.name].size for n in model.value_vars)
 
         if vars is None:
@@ -861,7 +861,7 @@ def __init__(
         **kwargs
     ):
         model = pm.modelcontext(model)
-        initial_values = model.initial_point
+        initial_values = model.recompute_initial_point()
         initial_values_size = sum(initial_values[n.name].size for n in model.value_vars)
 
         if vars is None:

pymc/step_methods/mlda.py

@@ -52,7 +52,7 @@ def __init__(self, *args, **kwargs):
         and some extra code specific for MLDA.
         """
         model = pm.modelcontext(kwargs.get("model", None))
-        initial_values = model.initial_point
+        initial_values = model.recompute_initial_point()
 
         # flag to that variance reduction is activated - forces MetropolisMLDA
         # to store quantities of interest in a register if True
@@ -114,7 +114,7 @@ def __init__(self, *args, **kwargs):
         self.tuning_end_trigger = False
 
         model = pm.modelcontext(kwargs.get("model", None))
-        initial_values = model.initial_point
+        initial_values = model.recompute_initial_point()
 
         # flag to that variance reduction is activated - forces DEMetropolisZMLDA
         # to store quantities of interest in a register if True
@@ -381,7 +381,7 @@ def __init__(
 
         # assign internal state
         model = pm.modelcontext(model)
-        initial_values = model.initial_point
+        initial_values = model.recompute_initial_point()
         self.model = model
         self.coarse_models = coarse_models
         self.model_below = self.coarse_models[-1]

pymc/tests/models.py

@@ -32,7 +32,7 @@ def simple_model():
     with Model() as model:
         Normal("x", mu, tau=tau, size=2, initval=floatX_array([0.1, 0.1]))
 
-    return model.initial_point, model, (mu, tau ** -0.5)
+    return model.recompute_initial_point(), model, (mu, tau ** -0.5)
 
 
 def simple_categorical():
@@ -43,7 +43,7 @@ def simple_categorical():
 
     mu = np.dot(p, v)
     var = np.dot(p, (v - mu) ** 2)
-    return model.initial_point, model, (mu, var)
+    return model.recompute_initial_point(), model, (mu, var)
 
 
 def multidimensional_model():
@@ -52,7 +52,7 @@ def multidimensional_model():
     with Model() as model:
         Normal("x", mu, tau=tau, size=(3, 2), initval=0.1 * np.ones((3, 2)))
 
-    return model.initial_point, model, (mu, tau ** -0.5)
+    return model.recompute_initial_point(), model, (mu, tau ** -0.5)
 
 
 def simple_arbitrary_det():
@@ -67,7 +67,7 @@ def arbitrary_det(value):
         b = arbitrary_det(a)
         Normal("obs", mu=b.astype("float64"), observed=floatX_array([1, 3, 5]))
 
-    return model.initial_point, model
+    return model.recompute_initial_point(), model
 
 
 def simple_init():
@@ -84,7 +84,7 @@ def simple_2model():
         x = pm.Normal("x", mu, tau=tau, initval=0.1)
         pm.Deterministic("logx", at.log(x))
         pm.Bernoulli("y", p)
-    return model.initial_point, model
+    return model.recompute_initial_point(), model
 
 
 def simple_2model_continuous():
@@ -94,7 +94,7 @@ def simple_2model_continuous():
         x = pm.Normal("x", mu, tau=tau, initval=0.1)
         pm.Deterministic("logx", at.log(x))
         pm.Beta("y", alpha=1, beta=1, size=2)
-    return model.initial_point, model
+    return model.recompute_initial_point(), model
 
 
 def mv_simple():
@@ -110,7 +110,7 @@ def mv_simple():
         )
     H = tau
     C = np.linalg.inv(H)
-    return model.initial_point, model, (mu, C)
+    return model.recompute_initial_point(), model, (mu, C)
 
 
 def mv_simple_coarse():
@@ -126,7 +126,7 @@ def mv_simple_coarse():
         )
     H = tau
     C = np.linalg.inv(H)
-    return model.initial_point, model, (mu, C)
+    return model.recompute_initial_point(), model, (mu, C)
 
 
 def mv_simple_very_coarse():
@@ -142,7 +142,7 @@ def mv_simple_very_coarse():
         )
     H = tau
     C = np.linalg.inv(H)
-    return model.initial_point, model, (mu, C)
+    return model.recompute_initial_point(), model, (mu, C)
 
 
 def mv_simple_discrete():
@@ -160,7 +160,7 @@ def mv_simple_discrete():
             else:
                 C[i, j] = -n * p[i] * p[j]
 
-    return model.initial_point, model, (mu, C)
+    return model.recompute_initial_point(), model, (mu, C)
 
 
 def mv_prior_simple():
@@ -186,27 +186,27 @@ def mv_prior_simple():
         x = pm.Flat("x", size=n)
         x_obs = pm.MvNormal("x_obs", observed=obs, mu=x, cov=noise * np.eye(n))
 
-    return model.initial_point, model, (K, L, mu_post, std_post, noise)
+    return model.recompute_initial_point(), model, (K, L, mu_post, std_post, noise)
 
 
 def non_normal(n=2):
     with pm.Model() as model:
         pm.Beta("x", 3, 3, size=n, transform=None)
-    return model.initial_point, model, (np.tile([0.5], n), None)
+    return model.recompute_initial_point(), model, (np.tile([0.5], n), None)
 
 
 def exponential_beta(n=2):
     with pm.Model() as model:
         pm.Beta("x", 3, 1, size=n, transform=None)
         pm.Exponential("y", 1, size=n, transform=None)
-    return model.initial_point, model, None
+    return model.recompute_initial_point(), model, None
 
 
 def beta_bernoulli(n=2):
     with pm.Model() as model:
         pm.Beta("x", 3, 1, size=n, transform=None)
         pm.Bernoulli("y", 0.5)
-    return model.initial_point, model, None
+    return model.recompute_initial_point(), model, None
 
 
 def simple_normal(bounded_prior=False):
@@ -222,4 +222,4 @@ def simple_normal(bounded_prior=False):
             mu_i = pm.Flat("mu_i")
         pm.Normal("X_obs", mu=mu_i, sigma=sd, observed=x0)
 
-    return model.initial_point, model, None
+    return model.recompute_initial_point(), model, None

pymc/tests/test_aesaraf.py

@@ -108,7 +108,7 @@ def test_make_shared_replacements(self):
 
         # Replace test1 with a shared variable, keep test 2 the same
         replacement = pm.make_shared_replacements(
-            test_model.initial_point, [test_model.test2], test_model
+            test_model.recompute_initial_point(), [test_model.test2], test_model
         )
         assert (
             test_model.test1.broadcastable

pymc/tests/test_data_container.py

@@ -34,7 +34,7 @@ def test_deterministic(self):
         with pm.Model() as model:
             X = pm.Data("X", data_values)
             pm.Normal("y", 0, 1, observed=X)
-            model.logp(model.initial_point)
+            model.logp(model.recompute_initial_point())
 
     def test_sample(self):
         x = np.random.normal(size=100)

pymc/tests/test_distributions.py

@@ -2739,9 +2739,10 @@ def test_bound_shapes(self):
             bound_shaped = Bound("boundedshaped", dist, lower=1, upper=10, shape=(3, 5))
             bound_dims = Bound("boundeddims", dist, lower=1, upper=10, dims="sample")
 
-        dist_size = m.initial_point["boundedsized_interval__"].shape
-        dist_shape = m.initial_point["boundedshaped_interval__"].shape
-        dist_dims = m.initial_point["boundeddims_interval__"].shape
+        initial_point = m.recompute_initial_point()
+        dist_size = initial_point["boundedsized_interval__"].shape
+        dist_shape = initial_point["boundedshaped_interval__"].shape
+        dist_dims = initial_point["boundeddims_interval__"].shape
 
         assert dist_size == (4, 5)
         assert dist_shape == (3, 5)