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Text mining in R – Automatic categorization of Wikipedia articles
Text mining is currently a live issue in data analysis. Enoromus text data resourses on the Internet made it an important component of Big Data world. The potential of information hidden in the words...
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Playing with GUIs in R with RGtk2
Sometimes when we create some nice functions which we want to show other people who don’t know R we can do two things. We can teach them R what is not easy task which also takes time or we can make GUI...
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R now will keep children away from drugs
Do you find this plot fancy? If yes, you can find the code at the end of this article BUT if you spend a little time to read it thoroughly, you can learn how to create better ones. We would like to...
View ArticleFaster, easier, and more reliable character string processing with stringi 0.3-1
A new release of the stringi package is available on CRAN (please wait a few days for Windows and OS X binary builds). # install.packages("stringi") or update.packages() library("stringi") stringi is...
View Articlestringi 0.4-1 released – fast, portable, consistent character string processing
A new release of the stringi package is available on CRAN (please wait a few days for Windows and OS X binary builds). # install.packages("stringi") or update.packages() library("stringi") Here’s a...
View ArticleInstalling Hadoop 2.6.0 on CentOS 7
by Marek Gagolewski, Maciej Bartoszuk, Anna Cena, and Jan Lasek (Rexamine). Configuring a working Hadoop 2.6.0 environment on CentOS 7 is a bit of a struggle. Here are the steps we made to set...
View ArticleUsing Hadoop Streaming API to perform a word count job in R and C++
by Marek Gagolewski, Maciej Bartoszuk, Anna Cena, and Jan Lasek (Rexamine). Introduction In a recent blog post we explained how we managed to set up a working Hadoop environment on a few CentOS7...
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SimilaR
Introduction Being a teacher can be a very gratifying job. If you teach programming, which is your favorite hobby too, nothing can be better than that. Only thing can spoil your dream: cheating...
View ArticlePull the (character) strings with stringi 0.5-2
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...
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Speeding up R packages’ installation process
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...
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