RollingIQR

Computes the rolling interquartile range.

Parameters

• window_size (int)

  Size of the window.

• q_inf – defaults to 0.25

  Desired inferior quantile, must be between 0 and 1. Defaults to 0.25.

• q_sup – defaults to 0.75

  Desired superior quantile, must be between 0 and 1. Defaults to 0.75.

Attributes

• name

• window_size

Examples

>>> from river import stats
>>> rolling_iqr = stats.RollingIQR(
...     q_inf=0.25,
...     q_sup=0.75,
...     window_size=101
... )

>>> for i in range(0, 1001):
...     rolling_iqr = rolling_iqr.update(i)
...     if i % 100 == 0:
...         print(rolling_iqr.get())
0.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0

Methods

get

Return the current value of the statistic.

update

Update and return the called instance.

Parameters

• x (numbers.Number)