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spatstat.geom (version 3.3-3)

split.hyperframe: Divide Hyperframe Into Subsets and Reassemble

Description

split divides the data x into subsets defined by f. The replacement form replaces values corresponding to such a division.

Usage

# S3 method for hyperframe
split(x, f, drop = FALSE, ...)

# S3 method for hyperframe split(x, f, drop = FALSE, ...) <- value

Value

The value returned from split.hyperframe is a list of hyperframe containing the values for the groups. The components of the list are named by the levels of f (after converting to a factor, or if already a factor and drop = TRUE, dropping unused levels).

The replacement method split<-.hyperframe returns a new hyperframe x for which split(x,f) equals value.

Arguments

x

Hyperframe (object of class "hyperframe").

f

a factor in the sense that as.factor(f) defines the grouping, or a list of such factors in which case their interaction is used for the grouping.

drop

logical value, indicating whether levels that do not occur should be dropped from the result.

value

a list of hyperframes which arose (or could have arisen) from the command split(x,f,drop=drop).

...

Ignored.

Author

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

, Rolf Turner rolfturner@posteo.net

and Ege Rubak rubak@math.aau.dk

Details

These are methods for the generic functions split and split<- for hyperframes (objects of class "hyperframe").

A hyperframe is like a data frame, except that its entries can be objects of any kind. The behaviour of these methods is analogous to the corresponding methods for data frames.

See Also

hyperframe, [.hyperframe

Examples

Run this code
   split(pyramidal, pyramidal$group)

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