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Finds the depth in a Biosonics echosounder file, by finding the strongest reflector and smoothing its trace.

Usage

findBottom(x, ignore = 5, clean = despike)

Arguments

x

an echosounder object.

ignore

number of metres of data to ignore, near the surface.

clean

a function to clean the inferred depth of spikes.

Value

A list with elements: the time of a ping, the depth of the inferred depth in metres, and the index of the inferred bottom location, referenced to the object's depth vector.

See also

See the echosounder documentation to learn about the contents of such objects, and about other functions that deal with them.

Other things related to echosounder data: [[,echosounder-method, [[<-,echosounder-method, as.echosounder(), echosounder, echosounder-class, plot,echosounder-method, read.echosounder(), subset,echosounder-method, summary,echosounder-method

Author

Dan Kelley