findBottom: Find the Ocean Bottom in an Echosounder Object

Description Usage Arguments Value Author(s) See Also

Description

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

Usage

1
findBottom(x, ignore = 5, clean = despike)

Arguments

x

an object of class echosounder

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.

Author(s)

Dan Kelley

See Also

The documentation for echosounder-class explains the structure of echosounder objects, and also outlines the other functions dealing with them.

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



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