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Check whether a provided object is truly of a specific type

Is the provided object of type waiver?

Check whether a formula is valid

Tests if an input is a SpatRaster object.

Tests if an input is a stars object.

Usage

is.Id(x)

is.Waiver(x)

is.formula(x)

is.Raster(x)

is.stars(x)

Arguments

x

an R Object.

Value

Boolean evaluation with logical output.

Boolean evaluation with logical output.

Boolean evaluation with logical output.

Boolean evaluation with logical output.

Boolean evaluation with logical output.