arkhe

Overview

A dependency-free collection of simple functions for cleaning rectangular data. This package allows to detect, count and replace values or discard rows/columns using a predicate function. In addition, it provides tools to check conditions and return informative error messages.

To cite arkhe in publications use:

Frerebeau N (2025). arkhe: Tools for Cleaning Rectangular Data. Université Bordeaux Montaigne, Pessac, France. doi:10.5281/zenodo.3526659 https://doi.org/10.5281/zenodo.3526659, R package version 1.10.0, https://packages.tesselle.org/arkhe/.

This package is a part of the tesselle project https://www.tesselle.org.

Installation

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

install.packages("arkhe")

And the development version from Codeberg with:

# install.packages("remotes")
remotes::install_git("https://codeberg.org/tesselle/arkhe")

Usage

## Load the package
library(arkhe)

## Set seed for reproductibility
set.seed(12345)

## Create a matrix
X <- matrix(sample(1:10, 25, TRUE), nrow = 5, ncol = 5)

## Add NA
k <- sample(1:25, 3, FALSE)
X[k] <- NA
X
#>      [,1] [,2] [,3] [,4] [,5]
#> [1,]    3    2    1    4    4
#> [2,]   10    6    8    8   10
#> [3,]    8   NA    7   10    7
#> [4,]   NA   NA    6    3    2
#> [5,]    8   10    1    9    4

## Count missing values in rows
count(X, f = is.na, margin = 1)
#> [1] 0 0 1 2 0

## Count non-missing values in columns
count(X, f = is.na, margin = 2, negate = TRUE)
#> [1] 4 3 5 5 5

## Find row with NA
detect(X, f = is.na, margin = 1)
#> [1] FALSE FALSE  TRUE  TRUE FALSE

## Find column without any NA
detect(X, f = is.na, margin = 2, negate = TRUE, all = TRUE)
#> [1] FALSE FALSE  TRUE  TRUE  TRUE

## Remove row with any NA
discard(X, f = is.na, margin = 1, all = FALSE)
#>      [,1] [,2] [,3] [,4] [,5]
#> [1,]    3    2    1    4    4
#> [2,]   10    6    8    8   10
#> [3,]    8   10    1    9    4

## Remove column with any NA
discard(X, f = is.na, margin = 2, all = FALSE)
#>      [,1] [,2] [,3]
#> [1,]    1    4    4
#> [2,]    8    8   10
#> [3,]    7   10    7
#> [4,]    6    3    2
#> [5,]    1    9    4

## Replace NA with zeros
replace_NA(X, value = 0)
#>      [,1] [,2] [,3] [,4] [,5]
#> [1,]    3    2    1    4    4
#> [2,]   10    6    8    8   10
#> [3,]    8    0    7   10    7
#> [4,]    0    0    6    3    2
#> [5,]    8   10    1    9    4

Translation

This package provides translations of user-facing communications, like messages, warnings and errors. The preferred language is by default taken from the locale. This can be overridden by setting of the environment variable LANGUAGE (you only need to do this once per session):

Sys.setenv(LANGUAGE = "<language code>")

Languages currently available are English (en) and French (fr).

Contributing

Please note that the arkhe project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.