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Subset a gData object

Source: R/basicMethods.R
subset-gData.Rd

Select a subset of locations from a gData object by index, logical vector, or node name. The @coords, @nodes.id, and @data slots are all subsetted consistently.

Arguments

x

a valid gData object.

i

indices for subsetting locations — a logical vector, integer indices, or character node names. If missing, all locations are kept.

j

indices for subsetting data columns. If missing, all columns are kept.

...

additional arguments passed to the [ method of @data.

drop

logical passed to the [ method of @data. Defaults to FALSE.

Value

A gData object with @coords, @nodes.id, and @data all subsetted consistently.

See also

getCoords, getNodes, getData

Other basic_methods: subset-gGraph

Examples

## subset to northern hemisphere populations
north <- hgdp[hgdp@data$Latitude > 40]
plot(worldgraph.40k, reset = TRUE)
#> Spherical geometry (s2) switched off
#> Spherical geometry (s2) switched on
points(north)