The map of bakeries that sell genuine St. Martin Croissants

97 years ago Poland regained independence after being partitioned for well over a century. The date coincidences with St. Martin Day, a holiday with pagan roots that somehow managed to be more important here in Poznań. We celebrate by having a parade on one of main streets and eating ungodly amounts of rogal świętomarciński (St. Martin Croissant), a local cake with PGI status in European Union. In this blog post I will show how to plot locations of bakeries that are allowed to sell products with that name.

Continue reading



Popularity of Google Analytics among R and python bloggers

One day I was wondering whether anyone actually reads that blog. A thought about setting up Google Analytics crossed my mind, but legitimate concerns about users privacy made me hesitant. Then I wanted to try out Piwik, but installation and configuration requires some effort and I wasn't sure if I want to make that investment. Eventually I figured out that I should probably do whatever other R and python bloggers are doing. But first I had to learn what it is.

Continue reading



How to create ebook from website spanning multiple pages

Every now and then I stumble upon book that disguises itself as website - it has table of contents and spans multiple interlinked pages, each dedicated to one coherent piece. Sometimes I like to take them offline, so I can read them on travel. Sometimes I like to take them off computer, because reading long passages of text on screen is not that convenient. Sometimes I would prefer to have them in ebook format, because that's what they really are. Here's how I do that.

Continue reading


Why I don't use GitHub exclusively and why you should consider it as well

Earlier this year, bad PR stunt by SourceForge caused many users to reevaluate their relationship with website. Recently, Google turned Google Code to read-only mode, with promise to pull the plug completely in foreseeable future. Source code hosting services landscape changed immensely, with GitHub being about the only major player left. There are reasons to not be happy with that situation. Hopefully, you will keep them in mind the next time you wonder where to host your new open source project.

Continue reading