diff --git a/doc/source/user_guide/gotchas.rst b/doc/source/user_guide/gotchas.rst index f4cef88072afa..adb40e166eab4 100644 --- a/doc/source/user_guide/gotchas.rst +++ b/doc/source/user_guide/gotchas.rst @@ -367,7 +367,7 @@ integer arrays to floating when NAs must be introduced. Differences with NumPy ---------------------- For :class:`Series` and :class:`DataFrame` objects, :meth:`~DataFrame.var` normalizes by -``N-1`` to produce unbiased estimates of the sample variance, while NumPy's +``N-1`` to produce `unbiased estimates of the population variance `__, while NumPy's :meth:`numpy.var` normalizes by N, which measures the variance of the sample. Note that :meth:`~DataFrame.cov` normalizes by ``N-1`` in both pandas and NumPy.