#1496 replace np.product by np.prod everywhere

CHANGELOG.md

@@ -42,6 +42,7 @@ All notable changes to this project will be documented in this file.
 - [#1424](https://github.com/pints-team/pints/pull/1424) Removed the `TriangleWaveTransform` class previously used in some optimisers.
 
 ### Fixed
+- [#1497](https://github.com/pints-team/pints/pull/1497) Fixed deprecation warning of `np.product` globally in pints.
 - [#1457](https://github.com/pints-team/pints/pull/1457) Fixed typo in deprecation warning for `UnknownNoiseLikelihood`.
 - [#1455](https://github.com/pints-team/pints/pull/1455) The `s` and `inv_s` properties of `ScalingTransformation` have been replaced with private properties `_s` and `_inv_s`.
 - [#1450](https://github.com/pints-team/pints/pull/1450) Made `TransformedBoundaries` consistent with `Boundaries` by removing `range()` and adding `sample()`.

pints/_error_measures.py

@@ -88,7 +88,7 @@ class MeanSquaredError(ProblemErrorMeasure):
     """
     def __init__(self, problem, weights=None):
         super(MeanSquaredError, self).__init__(problem)
-        self._ninv = 1.0 / np.product(self._values.shape)
+        self._ninv = 1.0 / np.prod(self._values.shape)
 
         if weights is None:
             weights = [1] * self._n_outputs

pints/_log_likelihoods.py

@@ -1120,7 +1120,7 @@ def __init__(self, log_likelihood):
         self._log_likelihood = log_likelihood
 
         # Pre-calculate parts
-        self._f = 1.0 / np.product(self._values.shape)
+        self._f = 1.0 / np.prod(self._values.shape)
 
     def __call__(self, x):
         return self._f * self._log_likelihood(x)

pints/_log_priors.py

@@ -1245,7 +1245,7 @@ def __init__(self, lower_or_boundaries, upper=None):
         # Use normalised value (1/area) for rectangular boundaries,
         # otherwise just use 1.
         if isinstance(self._boundaries, pints.RectangularBoundaries):
-            self._value = -np.log(np.product(self._boundaries.range()))
+            self._value = -np.log(np.prod(self._boundaries.range()))
         else:
             self._value = 1
 

pints/_mcmc/__init__.py

@@ -90,7 +90,7 @@ def __init__(self, x0, sigma0=None):
             self._sigma0 = np.diag(0.01 * self._sigma0)
         else:
             self._sigma0 = np.array(sigma0, copy=True)
-            if np.product(self._sigma0.shape) == self._n_parameters:
+            if np.prod(self._sigma0.shape) == self._n_parameters:
                 # Convert from 1d array
                 self._sigma0 = self._sigma0.reshape((self._n_parameters,))
                 self._sigma0 = np.diag(self._sigma0)
@@ -192,7 +192,7 @@ def __init__(self, chains, x0, sigma0=None):
             self._sigma0 = np.diag(0.01 * self._sigma0)
         else:
             self._sigma0 = np.array(sigma0, copy=True)
-            if np.product(self._sigma0.shape) == self._n_parameters:
+            if np.prod(self._sigma0.shape) == self._n_parameters:
                 # Convert from 1d array
                 self._sigma0 = self._sigma0.reshape((self._n_parameters,))
                 self._sigma0 = np.diag(self._sigma0)
@@ -352,7 +352,7 @@ def __init__(
                 else:
                     n_parameters = log_pdf[0].n_parameters()
                 # Make sure sigma0 is a (covariance) matrix
-                if np.product(sigma0.shape) == n_parameters:
+                if np.prod(sigma0.shape) == n_parameters:
                     # Convert from 1d array
                     sigma0 = sigma0.reshape((n_parameters,))
                     sigma0 = np.diag(sigma0)

pints/_optimisers/__init__.py

@@ -1125,7 +1125,7 @@ def __init__(self, function, dimension, x, y):
         self.d = dimension
         self.x = x
         self.y = y
-        self.n = 1 / np.product(y.shape)    # Total number of points in data
+        self.n = 1 / np.prod(y.shape)    # Total number of points in data
 
     def n_parameters(self):
         return self.d

pints/tests/test_log_priors.py

@@ -1081,7 +1081,7 @@ def test_uniform_prior(self):
         self.assertEqual(p([10, 10]), m)
         self.assertEqual(p([5, 20]), m)
 
-        w = -np.log(np.product(upper - lower))
+        w = -np.log(np.prod(upper - lower))
         self.assertEqual(p([1, 2]), w)
         self.assertEqual(p([1, 5]), w)
         self.assertEqual(p([1, 20 - 1e-14]), w)
@@ -1110,7 +1110,7 @@ def test_uniform_prior(self):
         self.assertEqual(p([10, 10]), m)
         self.assertEqual(p([5, 20]), m)
 
-        w = -np.log(np.product(upper - lower))
+        w = -np.log(np.prod(upper - lower))
         self.assertEqual(p([1, 2]), w)
         self.assertEqual(p([1, 5]), w)
         self.assertEqual(p([1, 20 - 1e-14]), w)