RollingPeakToPeak

Running peak to peak (max - min) over a window.

Parameters

• window_size (int)

  Size of the rolling window.

Attributes

• max (stats.RollingMax)

  The running rolling max.

• min (stats.RollingMin)

  The running rolling min.

Examples

>>> from river import stats

>>> X = [1, -4, 3, -2, 2, 1]
>>> ptp = stats.RollingPeakToPeak(window_size=2)
>>> for x in X:
...     print(ptp.update(x).get())
0
5
7
5
4
1

Methods

get

Return the current value of the statistic.

update

Update and return the called instance.

Parameters

• x (numbers.Number)