Sensor Transforms

Act on a single sample of sensor data directly as a pre-processing step. Can create a new source that is fed as input to the next step in the pipeline. ie Ax,Ay,Az can become MagnitudeAxAyAz.

Sensor Absolute Average

Computes the absolute average of a signal across the input_columns streams.

Parameters

• input_data – DataFrame containing the time series data

• input_columns – sensor streams to use in computing the magnitude

Returns

The input DataFrame with an additional column containing the per-sample absolute average of the desired input_columns

Sensor Average

Computes the average of a signal across the input_columns streams.

Parameters

• input_data – DataFrame containing the time series data

• input_columns – sensor streams to use in computing the average

Returns

The input DataFrame with an additional column containing the per-sample average of the desired input_columns

Magnitude

Computes the magnitude (square sum) of a signal across the input_columns streams.

Parameters

input_columns (list[str]) – sensor streams to use in computing the magnitude

Returns

The input DataFrame with an additional column containing the per-sample magnitude of the desired input_columns