Parametric Copula-GP model for analyzing multidimensional neuronal and behavioral relationships
Fig 1
Copula families used in the mixture models in our framework.
Each panel shows a scatter plot of samples drawn from a parametric copula family (named in the title of each plot) with a fixed parameter θ (shown in the bottom right corner). In total, we used 10 different copula elements—Gaussian + Frank + 4 × Clayton + 4 × Gumbel—to construct copula mixtures. The rightmost figure shows a mixture of two copulas from different copula families taken with equal mixing weights (0.5). Blue points here correspond to the samples drawn from a Clayton copula, orange points—to a 90°-rotated Gumbel copula. Note, that a mixture of copulas is a copula itself.