Return sample standard deviation over requested axis.
Normalized by N-1 by default. This can be changed using ddof
.
Axis for the function to be applied on. For pandas.Series
this parameter is unused and defaults to None
.
Degrees of Freedom. The divisor used in calculations is N - ddof, where N represents the number of elements.
Exclude NA/null values. If an entire row/column is NA
, the result will be NA
.
See also
numpy.ndarray.std
Returns the standard deviation of the array elements along given axis.
Series.std
Return sample standard deviation over requested axis.
Examples
For pandas.DatetimeIndex
:
>>> idx = pd.date_range('2001-01-01 00:00', periods=3) >>> idx DatetimeIndex(['2001-01-01', '2001-01-02', '2001-01-03'], dtype='datetime64[ns]', freq='D') >>> idx.std() Timedelta('1 days 00:00:00')
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4