added note about descriptors in docstring for RDMs.expand()
@@ -379,6 +379,9 @@ class RDMs:
def expand(cls, list_of_rdms, all_patterns=None, descriptor='cond'):
"""Make larger RDMs with missing values where needed
+ Any RDMs object-level descriptors will be turned into rdm_descriptors
+ if they do not match across objects.
+
Args:
list_of_rdms (list): List of RDMs objects
all_patterns (list, optional): The full list of pattern
