Finds the depth in a Biosonics echosounder file, by finding the strongest reflector and smoothing its trace.
findBottom(x, ignore = 5, clean = despike)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.
an echosounder object.
number of metres of data to ignore, near the surface.
a function to clean the inferred depth of spikes.
Dan Kelley
The documentation for echosounder 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