Last week we have downloaded and loaded into R data from fitness tracker (motion coprocessor in iphone). Then with just few lines of R code we decomposed the data into a seasonal weekly component and the trend. Today we are going to see how to plot the number of steps per hour for different days of week. And then same data will be used to check how often there was any activity at given time.

During the Christmas break I met my brother-in-law who is an ultimate gadgeteer (an excellent trait for brother). He told me that most iPhones have build-in motion coprocessor and by default they are counting steps. No need to turn on anything, it is working all the time (assuming that the phone is with you).

I’ve prepared a short console-based data-driven R game named ,,The Proton Game’’ or ,,Hack the Proton” (still cannot decide which name is better). The goal of a player is to play the hacker and infiltrate Slawomir Pietraszko’s account on a Proton server. To do this, you have to solve four data-based puzzles.