pysad.statistics.VarianceMeter

class pysad.statistics.VarianceMeter

The statistic that keeps track of the variance of the values. The variance formula is: (sum_squares - (sum**2)/count)/count.

Attrs:

sum_meter (pyod.statistics.SumMeter object): SumMeter object. sum_squares_meter (pyod.statistics.SumSquaresMeter object): SumSquaresMeter object. count_meter (pyod.statistics.CountMeter object): CountMeter object.

Methods

__init__()
get()	Method to obtain the tracked statistic.
remove(num)	Updates the statistic by removing particular value.
update(num)	Updates the statistic with the value for a timestep.

get()

Method to obtain the tracked statistic.

Returns:

The statistic.

Return type:

float

remove(num)

Updates the statistic by removing particular value.

Parameters:

num (float) – The value to be removed.

Returns:

self.

Return type:

object

update(num)

Updates the statistic with the value for a timestep.

Parameters:

num (float) – The incoming value, for which the statistic is used.

Returns:

self.

Return type:

object