← signal_processing package

MedianFilter

Calculate a sliding-window median over the data.

This node requires that the data is a continuous time series (that is, has a time axis and is not segmented). The node works both with streaming and offline data, and replaces each value by the median of the k preceding input samples (where k is window_len worth of samples). This filter is a robust alternative to the MovingAverage filter, and can be used to e.g., track the signal drift or offset in the presence of artifacts. Version 1.0.0

Ports/Properties

data

Data to process.

verbose name

Data

default value

None

port type

DataPort

value type

Packet (can be None)

data direction

INOUT

window_len

Window length for median calculation. In seconds.

verbose name

Window Length

default value

1

port type

FloatPort

value type

float (can be None)

set_breakpoint

Set a breakpoint on this node. If this is enabled, your debugger (if one is attached) will trigger a breakpoint.

verbose name

Set Breakpoint (Debug Only)

default value

False

port type

BoolPort

value type

bool (can be None)

metadata

User-definable meta-data associated with the node. Usually reserved for technical purposes.

verbose name

Metadata

default value

{}

port type

DictPort

value type

dict (can be None)