hyperframe {spatstat}R Documentation

Hyper Data Frame

Description

Create a two-dimensional array in which each column consists of values of one type (as in a data frame) or consists of objects of one class.

Usage

   hyperframe(...,
             row.names=NULL, check.rows=FALSE, check.names=TRUE,
             stringsAsFactors=default.stringsAsFactors())

Arguments

... Arguments of the form value or tag=value. Each value is either an atomic vector, or a list of objects of the same class, or a single atomic value, or a single object. Each value will become a column of the array. The tag determines the name of the column. See Details.
row.names,check.rows,check.names,stringsAsFactors Arguments passed to data.frame controlling the names of the rows, whether to check that rows are consistent, whether to check validity of the column names, and whether to convert character columns to factors.

Details

A hyperframe is like a data frame, except that its entries can be objects of any kind.

A hyperframe is a two-dimensional array in which each column consists of values of one type (as in a data frame) or consists of objects of one class.

The arguments ... are any number of arguments of the form value or tag=value. Each value will become a column of the array. The tag determines the name of the column.

Each value can be either

All columns (vectors, factors and lists) must be of the same length, if their length is greater than 1.

Value

An object of class "hyperframe". There are methods for print, plot, summary, [, $, $<-, names, as.data.frame and as.list for this class. There is also a cbind.hyperframe.

Author(s)

Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner r.turner@auckland.ac.nz

See Also

plot.hyperframe, eval.hyper

Examples


 # equivalent to a data frame
  hyperframe(X=1:10, Y=3)

 # list of functions
  hyperframe(f=list(sin, cos, tan))

 # table of functions and matching expressions
  hyperframe(f=list(sin, cos, tan),
             e=list(expression(sin(x)), expression(cos(x)), expression(tan(x))))

  hyperframe(X=1:10, Y=letters[1:10], Z=factor(letters[1:10]),
    stringsAsFactors=FALSE)

  lambda <- runif(10, min=50, max=100)
  X <- lapply(as.list(lambda), function(x) { rpoispp(x) })
  hyperframe(lambda=lambda, X=X)

[Package spatstat version 1.15-1 Index]