Added an entry to whatsnew for 0.8.4.

This commit is contained in:
Tim Shawver
2015-12-01 15:26:10 -05:00
parent 631a1879a3
commit 026ab30ea5
+3
View File
@@ -28,6 +28,9 @@ Enhancements
:meth:`~zipline.pipeline.factors.Factor.isfinite` methods to
:class:`zipline.pipeline.factors.Factor` (:issue:`861`).
* Added :class:`zipline.pipeline.factors.Returns`, a built-in factor which
calculates the percent change in close price over the given window_length.
Experimental Features
~~~~~~~~~~~~~~~~~~~~~