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.

# S4 method for 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

Examples

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