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Manipulation of high-dimensional arrays in R with the magic package

Overview

The magic package implements functionality for manipulating high-dimensional arrays using efficient vectorised methods. The original application was high-dimensional magic hypercubes. This README shows some of the more useful functions in the package.

Installation

You can install the released version of magic from CRAN with:

# install.packages("magic")  # uncomment this to install the package
library("magic")

Package highlights

• Function adiag() binds arbitrarily-dimensioned arrays corner-to-corner
• Function apad() pads arbitrarily-dimensioned arrays
• Function apldrop() is a replacement for APL’s drop
• Function aplus() superimposes two arrays of different dimensions and returns the sum of overlapping elements
• Function arev() is a multidimensional generalization of rev()
• Function arot() is a generalization of matlab’s rotdim
• Function fnsd() returns the first nonsingleton dimension of an arbitrary dimensioned array
• Function ashift() shifts the origin of arbitrary dimensioned arrays

Much of the package functionality is vectorised in array dimension.

Further information

For more detail, see the package vignette

vignette("magic")

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.