DOC: Slightly better comment on Frequency._ffill.

2026-07-19 11:22:06 +08:00 · 2014-09-29 14:40:03 -04:00
parent c477680ca3
commit 9152d8da37
1 changed files with 2 additions and 1 deletions
@@ -258,7 +258,8 @@ class HistorySpec(object):
        self.frequency = frequency
        # The field, e.g. 'price', 'volume', etc.
        self.field = field
-        # Whether or not to forward fill the nan data.
+        # Whether or not to forward fill nan data.  Only has an effect if this
+        # spec's field is in FORWARD_FILLABLE.
        self._ffill = ffill

        # Calculate the cache key string once.