AnalogFilter

NoFilter

Accepts empty string or NoFilter.

SigmaLimit

Accepts one parameter of type double. The default value is 2.0.

ToDiscrete

Accepts two parameters: Cutoff value and operator.

The cutoff value signifies the boundary between values that are interpreted as ON and OFF. For double value, the default is 0.0

The operator parameter specifies the value range relative to the cutoff value that is to be converted to the ON value and vice versa. The valid operators are:">", ">=", "<" or "<=". The default value is ">".

SnapTo

Accepts two parameters: Tolerance and base value.

The tolerance value is of type double. The default value is 0.01.

Base values are comma separated double values. The default value is 0.0.

When the SnapTo filter is specified, point values falling within the range (Base value - Tolerance) or (Base value + Tolerance) are forced to the base value before the point goes into further retrieval processing.