minor fix in gaussian_mixture.py
This was working, since `'full' in 'full'`, but for clarity and accident-avoidance it's probably better to use `==`.
@@ -309,7 +309,7 @@ def _compute_precision_cholesky(covariances, covariance_type):
"or collapsed samples). Try to decrease the number of components, "
"or increase reg_covar.")
- if covariance_type in 'full':
+ if covariance_type == 'full':
n_components, n_features, _ = covariances.shape
precisions_chol = np.empty((n_components, n_features, n_features))
for k, covariance in enumerate(covariances):
