Package: vfunc 1.0

vfunc: Manipulate Virtual Functions

If f <- function(x){x^2} and g <- function(x){x+1} it is a constant source of annoyance that "f+g" is not defined. Package 'vfunc' allows you to do this, and we have (f+g)(2) returning 6. The other arithmetic operators are similarly implemented. A wide class of coding bugs is eliminated.

Authors:Robin K. S. Hankin [aut, cre]

vfunc_1.0.tar.gz
vfunc_1.0.zip(r-4.7)vfunc_1.0.zip(r-4.6)vfunc_1.0.zip(r-4.5)
vfunc_1.0.tgz(r-4.6-any)vfunc_1.0.tgz(r-4.5-any)
vfunc_1.0.tar.gz(r-4.7-any)vfunc_1.0.tar.gz(r-4.6-any)
vfunc_1.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
vfunc/json (API)

# Install 'vfunc' in R:

install.packages('vfunc', repos = c('https://robinhankin.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/robinhankin/vfunc/issues

Pkgdown/docs site:https://robinhankin.github.io

On CRAN:

4.54 score 1 stars 205 downloads 38 exports 0 dependencies

Last updated from:cfa28246c9. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	133
source / vignettes	OK	164
linux-release-x86_64	OK	125
macos-release-arm64	OK	106
macos-oldrel-arm64	OK	109
windows-devel	OK	77
windows-release	OK	76
windows-oldrel	OK	86
wasm-release	OK	133

Exports:Abs Acos Acosh as.function as.vf Asin Asinh Atan Atanh Ceiling Cos Cosh Cospi Cummax Cummin Cumprod Cumsum Digamma Exp Expm1 Floor Gamma Lgamma Log Log10 Log1p Log2 pow Sign Sin Sinh Sinpi Sqrt Tan Tanh Tanpi Trigamma Trunc

Dependencies:

Function factorization with the vfunc package

Rendered fromvfunc.Rmdusingknitr::rmarkdown

Last update: 2026-03-17
Started: 2025-01-27

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Manipulate Virtual Functions	vfunc-package vfunc
Coerce functions to a virtual function.	as.vf as.vf,ANY-method as.vf,function-method
'Compare' methods for 'vf' objects	Compare,ANY,vf-method Compare,function,vf-method Compare,vf,ANY-method Compare,vf,function-method Compare,vf,vf-method Compare-methods
Math group generic functions in the 'vfunc' package: trig, exponential, log, etc.	Abs abs,vf-method Acos acos,vf-method Acosh acosh,vf-method Asin asin,vf-method Asinh asinh,vf-method Atan atan,vf-method Atanh atanh,vf-method Ceiling ceiling,vf-method Cos cos,vf-method Cosh cosh,vf-method Cospi cospi,vf-method Cummax cummax,vf-method Cummin cummin,vf-method Cumprod cumprod,vf-method Cumsum cumsum,vf-method Digamma digamma,vf-method Exp exp,vf-method Expm1 expm1,vf-method Floor floor,vf-method Gamma gamma,vf-method Lgamma lgamma,vf-method Log log,vf-method Log10 log10,vf-method Log1p log1p,vf-method Log2 log2,vf-method Math Sign sign,vf-method Sin sin,vf-method Sinh sinh,vf-method Sinpi sinpi,vf-method Sqrt sqrt,vf-method Tan tan,vf-method Tanh tanh,vf-method Tanpi tanpi,vf-method Trigamma trigamma,vf-method Trunc trunc,vf-method
Methods for Function 'Math', 'Arith' in the 'vfunc' package	Arith,ANY,vf-method Arith,function,vf-method Arith,vf,ANY-method Arith,vf,function-method Arith,vf,missing-method Arith,vf,vf-method Arith-methods Math,vf-method Math-methods
Iterated functions; functional powers	pow power
Class '"vf"'	as.function,vf-method as.vf,vf-method coerce,ANY,vf-method coerce,function,vf-method coerce,vf,function-method vf-class