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oce (version 0.9-17)

subset.coastline: Subset a coastline object

Description

Subset a coastline object

Usage

## S3 method for class 'coastline}(x, subset, \dots)':
subsetundefined
x{a coastline object.}
  subset{a condition to be applied to the data portion of
    x.  See Details.}
  ...{ignored.}
This function is somewhat analogous to
    subset.data.frame.  Points on the coastline that are outside
    the subset region are set to NA.  If the results are to be plotted
    with plot.coastline, it will be necessary to set the argument
    fill=NULL to avoid filling land areas.
A new coastline object.
library(oce)
data(coastlineWorld)
plot(coastlineWorld)
a <- subset(coastlineWorld, longitude < 0)
points(a[['longitude']], a[['latitude']], col='red', pch=20, cex=1/2)
[object Object]
misc

Arguments