npstreams.imean

npstreams.imean(arrays, axis=-1, ignore_nan=False)

Streaming mean of arrays. Equivalent to iaverage(arrays, weights = None).

Parameters

• arrays (iterable of ndarrays) – Arrays to be averaged. This iterable can also a generator.

• axis (int, optional) – Reduction axis. Default is to average the arrays in the stream as if they had been stacked along a new axis, then average along this new axis. If None, arrays are flattened before averaging. If axis is an int larger that the number of dimensions in the arrays of the stream, arrays are averaged along the new axis.

• ignore_nan (bool, optional) – If True, NaNs are set to zero weight. Default is propagation of NaNs.

Yields

mean (~numpy.ndarray, dtype float) – Online mean array.