Labeling Operators

MHO_ChannelLabeler

Class	MHO_ChannelLabeler
Operator Type	Unary
Operator Category	labeling
Argument Data Type	visibility_type or weight_type
Priority Value	0.1
Control File Keyword	chan_ids

Applies ‘fourfit’ labels to each channel (e.g. ‘a’, ‘b’,…), if no user-defined frequency to label map is supplied then the default mapping is in the order of frequency low to high, starting with the character ‘a’. If the number of channels exceeds 64, multi-character labels will be used. Attaches index labels to each element of the channel axis of the input data object. The key name is ‘channel_label’.

MHO_SamplerLabeler

Class	MHO_SamplerLabeler
Operator Type	Unary
Operator Category	labeling
Argument Data Type	visibility_type or weight_type
Priority Value	0.9
Control File Keyword	samplers, (see also sampler_delay)

When the ‘samplers’ keyword is encountered, this operator loops over all channels and inserts a label for each channel which contains the specified sampler index. This is a look-up mechanism for associating the polarization-specific sampler_delay value with the appropriate set of channels (i.e. those where are collected by the same digital backend). This quantity is used by the MHO_MultitonePhaseCorrection operator.