Description Usage Arguments Details Value See Also Examples
The SumNASC function aggregates input data of type NASCData vertically, into an output data set with Layer resolution.
1 | SumNASC()
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Parameter descrption. |
The SumNASC function aggregates input data of type NASCData (LINK) vertically, into an output NASCData set with Layer resolution. Layer resolution is equal to the vertical calculation cell resolution used for density estimations in other functions.
The NASCData input source is given through the NASCData parameter. The aggregation variable Layer may have values in the input data. If not, the optional parameter AcousticLayer is used to define the input data linking Layer to Channels and fill in values for Layer prior to aggregating. The aggregation is simply the sum of NASC over Layers by horizontal record. The variables MinRange and MaxRange are updated to represent the ranges of each Layer.
References:
MacLennan, D. N., Fernandes, P. G., and Dalen, J. 2002. A consistent approach to definitions and symbols in fisheries acoustics. ICES Journal of Marine Science, 59: 365_369.
Simmonds, J., and MacLennan, D. 2005. Fisheries Acoustics. Theory and Practice, Blackwell Science, Oxford. 437 pp.
A data.table is returned with awesome stuff.
roxygenize
is used to generate the documentation.
1 | x <- 1
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