1. A method for determining dimensionality of a network, the dimensionality corresponding to a number of degrees of freedom in the network, the method comprisings: using a computer system, sampling data from one or more nodes of the network; using a computer system, mapping the data into one or more matrices; using a computer system, applying individual differences multidimensional scaling to the one or more matrices to produce a common space output; and using a computer system, processing the common space output to determine the dimensionality of the network.