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Module ImgAlgos::AcqirisAverage

Gets Acqiris waveforms from event store as ndarray<double,2> object using parameters source and key_in;
performs waveform selection controlled by parameters: thresholds, is_postive_signal, do_inverse_selection, in the range depending on local event numbers skip_events and proc_events;
after number of events proc_events or at the end of job (whatever happens first), saves ndarray<double,2> array of averaged waveforms in the text file with name constructed from fname_ave_prefix and in the event store with using parameters source and key_outaverage.

parameter	default value	description
`source`	`"DetInfo(:Acqiris)"`	Source of data.
`key_in`	`"acq_wform"`	Key for input data (raw - by default).
`key_average`	`"acq-ave"`	Keyword for averaged waveform array saved in the `evt` store. If empty – array is not saved.
`fname_ave_prefix`	`"acq-ave"`	Text file name prefix for averaged array, full name will be extended by the experiment name, run number and suffix `"-ave-wfs.txt"`, for example: `"acq-amo01509-r0125-ave-wfs.txt".`
`thresholds`	`""`	List of threshold values for all Acqiris channels separated by space. If empty – threshold selection is not applied, all waveforms are averaged.
`is_positive_signal`	`false`	Threshold crossing algorithm depends on signal polarity (sign of threshold value is not changed!).
`do_inverse_selection`	`false`	This parameter inverts selection of the waveforms for averaging in case of threshold crossing.
`skip_events`	`0`	Number of events (from the beginning of job) to skip before begin averaging.
`proc_events`	`10000000`	Number of events for averaging.
`print_bits`	`0`	Verbosity: =0 - print nothing +1 - input parameters +2 - ndarray dimensions +4 - begin/end accumulate statistics record +8 - record about saving file with averaged array +16 - statistics of averaged waveforms (number of accumulated) +32 - part of the input waveform

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Gets Acqiris waveforms from event store as ndarray<double,2> object using parameters source and key_in;
processes events in the range depending on local event numbers skip_events and proc_events;
at the 1st processed event loads the fname_base_line file with baseline ndarray<double,2>;
subtract baseline from waveforms;
save corrected waveforms in the event store as ndarray<double,2> object using parameters source and key_out.

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