Articles by Sascha W.

Changing the font of R base graphic plots.

August 24, 2015 | Sascha W.

Want to change the font used in your R plots? I got a quite simple solution that works on Mac OS.You need the function 'quartzFonts'. With this function, you can define additional font families to use in your R base graphic plots. The default font fami... [Read more...]

Changing the font of R base graphic plots.

August 24, 2015 | Sascha W.

Want to change the font used in your R plots? I got a quite simple solution that works on Mac OS.You need the function 'quartzFonts'. With this function, you can define additional font families to use in your R base graphic plots. The default font families are 'sans', 'serif' ... [Read more...]

Mapping the world with tweets

February 16, 2015 | Sascha W.

A few days ago, I collected 30 minutes of tweets all around the world. I used the twitteR and streamR packages for this. The nice thing about those tweets is that they have geo-information associated with them. Not all of them, of course, but more than enough.Let's see, what happens ...
[Read more...]

Stay on track: Plotting GPS tracks with R

September 18, 2014 | Sascha W.

Many GPS devices and apps have the capability to track your current position via GPS. If you go walking, running, cycling, flying or driving, you can take a look at your exact route and your average speed.Some of these devices or apps also allow you to... [Read more...]

Getting emotional in the absence of something: Using the Berlin Affective Word List to analyze emotional valence and arousal for nouns and adjectives.

August 28, 2014 | Sascha W.

This is something I did a while ago using the Berlin Affective Word List (BAWL).The BAWL contains ratings for 2902 German words (2107 nouns, 504 verbs, 291 adjectives). Ratings were collected for emotional valence (bad vs. good), arousal (the grade of valence) and imaginability (how well you can imagine the specific word). Please ... [Read more...]

Catching errors in R and trying something else

December 4, 2013 | Sascha W.

I recently encountered some functionality in R which most of you might already know. Nevertheless, I want to share it here, because it might come in handy for those of you who do not know this yet.Suppose you want to read in a large number of very large text ... [Read more...]

The "golden age" of a football player

January 28, 2013 | Sascha W.

It's been some time since my last post on football. And we're talking about european soccer here.So I finally managed to write some functions which allow me to extract player stats from www.transfermarkt.de. The site tracks lots of stats in the world of soccer. For each player, ... [Read more...]
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