Figure 3
From: Multiple gravity laws for human mobility within cities
\(R^{2}\) values in the distance exponent estimation for the twelve most populated cities in the USA. (a) The box-and-whisker plot for each city describes a distribution of \(R^{2}\) values for 55 distance exponents in the exponent matrix, \(\Gamma =[\gamma _{kk'}]\). The black thick vertical line indicates the \(R^{2}\) value for the distance exponent, \(\gamma _{\mathrm{s}}\), when using the whole set of data for each city. (b) The same results as in (a) are presented but by separating the cases with \(k+k'>11\) (pink plots) from the other cases with \(k+k'\leq 11\) (blue plots)