The output of a wavelet transformation is difficult to read. Coefficients referring to different locations and different scales are stored in single vector. In order to separate the vector into parts representing events of the same scale, I could span a second dimension. However, I prefer instead to display a complete trace, because transforming higher dimensional arrays leads to simply interpretable matrices as seen in Figure 7. Looking at a single trace, we interpret the different octave parts of the trace as referring to different scales. The different elements in each octave subset refer to a spatial location like shown in Figure 1.