Figure 2From: Unveiling patterns of international communities in a global city using mobile phone data Entropy of international mobile phone activity. (A) The plot shows the distribution of the calling activity, over the whole reporting period, for two specific grid cells. For each cell, a stacked bar chart displays how the calling activity is distributed over different country codes, denoted by different colors. (B) Entropy time series for five selected grid cells, from November 1 to December 31, 2013.Back to article page