R: Subset a Topo Object

subset,topo-method {oce} | R Documentation

## Subset a Topo Object

### Description

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 signature '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.

### Author(s)

Dan Kelley

### 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`

### Examples

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

[Package oce version 1.7-2 Index]