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icosa (version 0.11.1)

[,gridlayer,ANY,missing-method: Extraction from a gridlayer using indices

Description

Shorthand to the subset function.

Function to replace specific elements in a gridlayer object

Usage

# S4 method for gridlayer,ANY,missing
[(x, i)

# S4 method for gridlayer,SpatExtent,missing [(x, i)

# S4 method for gridlayer,ANY,ANY [(x, i) <- value

Value

The extraction methods return facelayer-class objects.

Arguments

x

(facelayer) The object to be subsetted.

i

(logical, numeric or SpatExtent) The subscript vector, or extent, specifying the faces that are used for subsetting. As in subset.

value

The replacement values.

Details

All these methods are implementing direct replacement in the @values slot of a layer, depending on criteria used for subsetting.