wesm/pandas — Issue #309: Implement fast Cython Series iterator, for speeding up DataFrame.apply
Author: wesm
Created: 2011-10-31 01:26:56+00:00
State: open
Labels: Enhancement

Having tons of calls to `Series.__new__` seriously degrades performance when most of the logic isn't necessary. Could play tricks in Cython with the data pointers to avoid this.