Subset a topo Object

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

Usage

# S4 method for class 'topo'
subset(x, subset, ...)

Arguments

x

a topo object.

subset

A condition to be applied to the data portion of x. See “Details”.

...

Ignored.

Value

A new topo object.

See also

Other things related to topo data: [[,topo-method, [[<-,topo-method, as.topo(), download.topo(), plot,topo-method, read.topo(), summary,topo-method, topo-class, topoInterpolate(), topoWorld

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,echosounder-method, subset,lobo-method, subset,met-method, subset,oce-method, subset,odf-method, subset,rsk-method, subset,sealevel-method, subset,section-method, subset,xbt-method

Author

Dan Kelley

Examples

# northern hemisphere
library(oce)
data(topoWorld)
plot(subset(topoWorld, latitude > 0))