Articles by Marek Gągolewski

Speeding up R packages’ installation process

July 5, 2015 | 0 Comments

There is a time for some things, and a time for all things; a time for great things, and a time for small things — Miguel de Cervantes Building R packages from sources may take a long time, especially if…Read more › [Read more...]

Pull the (character) strings with stringi 0.5-2

June 23, 2015 | 0 Comments

A reliable string processing toolkit is a must-have for any data scientist. A new release of the stringi package is available on CRAN (please wait a few days for Windows and OS X binary builds). As for now, about 850…Read more › [Read more...]

ICU Unicode text transforms in the R package stringi

May 20, 2014 | 0 Comments

The ICU (International Components for Unicode) library provides very powerful and flexible ways to apply various Unicode text transforms. These include: Full (language-specific) case mappings, Unicode normalization, Text transliteration (e.g. script-to-script conversion). All of these are available to R programmers/users…Read more › [Read more...]

(String/text processing)++: stringi 0.2-3 released

May 14, 2014 | 0 Comments

A new release of the stringi package is available on CRAN (please wait a few days for Windows and OS X binary builds). stringi is a package providing (but definitely not limiting to) replacements for nearly all the character string…Read more › [Read more...]

ShareLaTeX now supports knitr

January 31, 2014 | 0 Comments

ShareLaTeX (click here to register a free account) is a wonderful and reliable on-line editor for writing and compiling LaTeX documents “in the cloud” as well as working together in real-time (imagine Google Docs supporting LaTeX =__ you get ShareLaTeX).…Read more › [Read more...]

FuzzyNumbers_0.3-3 released

January 3, 2014 | 0 Comments

A new release of the FuzzyNumbers package for R is now available on CRAN. The package provides S4 classes and methods to deal with Fuzzy Numbers that allow for computations of arithmetic operations, approximation by trapezoidal and piecewise linear FNs,…Read more › [Read more...]

FuzzyNumbers-0.3-1 released

June 23, 2013 | 0 Comments

A new version of the FuzzyNumbers package for R has just been submitted to the CRAN archive. Check out our step-by-step tutorial. ** FuzzyNumbers Package CHANGELOG ** ********************************************************************* 0.3-1 /2013-06-23/ * piecewiseLinearApproximation() - general case (any knot.n) for method="NearestEuclidean" now…Read more › [Read more...]

Documentation of R source code for package developers

April 26, 2013 | 0 Comments

R package developers who use the native API written in C will surely be interested in the Roxygen-generated Documentation of R source code. The documentation is based on the SVN R-devel branch and will be updated on a monthly basis…Read more › [Read more...]

knitr documents with tikzDevice graphics

April 13, 2013 | 0 Comments

Setting up tikzDevice output in knitr may be a frustrating task, but gives outstandingly aesthetic, LaTeX-like figures. Here are my global knitr settings for typesetting documents in Polish (in UTF-8, make sure your R also runs in a Unicode locale…Read more › [Read more...]

Configure Kile for knitr under GNU/Linux

April 13, 2013 | 0 Comments

Kile – a convenient LaTeX editor – may also be used to prepare knitr-generated reports. Here is how we may make our work much more efficient with a convenient compile-on-keypress feature. Create a bash script in your home directory, named…Read more › [Read more...]

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