This assignment is intended to familiarize with biological data and (eventually) refresh basic skills such as informative plotting and infer information from data.
After loading data1.mat, data2.mat and data3.mat, you are required to plot them with appropriate labels on the axis and try to guess which type of data you are plotting (EEG, EMG or motion data) and estimate roughly what is the frequency content of the signal (tip: plotting data in time points instead of sample would help).