Simulate real and complex numbers from distributions of their magnitude and arguments. Optionally, the magnitudes and/or arguments may be fixed in almost arbitrary ways. Plot density and distribution functions with automatic selection of suitable regions. Small programming utilities: check if an object is identical to NA, count positional arguments in a call, set intersection of more than two sets, check if an argument is unnamed, compute the graph of S4 classes in packages.

The latest stable version is on CRAN.

install_packages("gbutils")

You can install the development version of gbutils from Github:

library(devtools)
install_github("GeoBosh/gbutils")

# Overview

Package gbutils is a collection of (mostly small) functions used interactively or in packages.

## Numeric computations

• sim_numbers(), sim_complex(), sim_real() - Simulate real or complex numbers from (possibly partial) polar form specifications.

• cdf2quantile() - Compute quantiles from a given distribution function.

• pseudoInverse() - Compute pseudo-inverse matrices.

## Graphics

• plotpdf() - Plot functions with automatic determination of the “interesting” region (typically probability density and distribution functions)

## S4 classes

• adjacencyOfClasses() - Create inheritance graphs of S4 classes defined in one or more packages.

## Programming utilities

• isNA() - Is an object NA?

• isargunnamed() - Is an element of a list named?

• missing_arg() - Is an element of a pairlist missing?

• parse_text() - Parse expressions.

• nposargs() - Count the number of positional arguments used in a call.

• shiftleft() shiftright() - Rotate vectors.

## Other

• mintersect() - Set intersection of arbitrary number of arguments.

• myouter() - Outer product using a non-vectorised function.

• raw_history() Get the command history in a character vector.