subset-amsr-method: Subset an amsr Object

In oce: Analysis of Oceanographic Data

Subset an amsr Object

Description

Return a subset of a amsr object.

Usage

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

Arguments

x	an amsr object.
subset	an expression indicating how to subset x.
...	ignored.

Details

This function is used to subset data within an amsr object by longitude or by latitude. These two methods cannot be combined in a single call, so two calls are required, as shown in the Example.

Value

An amsr object.

Author(s)

Dan Kelley

See Also

Other things related to amsr data: [[,amsr-method, [[<-,amsr-method, amsr, amsr-class, composite,amsr-method, download.amsr(), plot,amsr-method, read.amsr(), summary,amsr-method

Other functions that subset oce objects: subset,adp-method, subset,adv-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,topo-method, subset,xbt-method

Examples

library(oce)
data(amsr) # see ?amsr for how to read and composite such objects
sub <- subset(amsr, -75 < longitude & longitude < -45)
sub <- subset(sub, 40 < latitude & latitude < 50)
plot(sub)
data(coastlineWorld)
lines(coastlineWorld[["longitude"]], coastlineWorld[["latitude"]])

oce documentation built on Sept. 11, 2024, 7:09 p.m.