Subset an Echosounder Object

Description

This function is somewhat analogous to subset.data.frame. Subsetting can be by time or depth, but these may not be combined; use a sequence of calls to subset by both.

Usage

## S4 method for signature 'echosounder'
subset(x, subset, ...)

Arguments

Value

A new echosounder object.

Author(s)

Dan Kelley

See Also

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

Other functions that subset oce objects: subset,adp-method, subset,adv-method, subset,amsr-method, subset,argo-method, subset,cm-method, subset,coastline-method, subset,ctd-method, subset,lobo-method, subset,met-method, subset,oce-method, subset,odf-method, subset,rsk-method, subset,sealevel-method, subset,section-method, subset,topo-method

Examples

library(oce)
data(echosounder)
plot(echosounder)
plot(subset(echosounder, depth < 10))
plot(subset(echosounder, time < mean(range(echosounder[['time']]))))