Supplementary Figure 15: Subtle noise can affect spatial function classification.

(A) Nrgn which is assigned as periodic with posterior probability 1. Red line in top row indicates where in spatial coordinates the Gaussian processes are predicted in the bottom row, with a sliver of close by points colored in black. Bottom row shows expression level of all “spots”, with “spots” close to the predicted curves in black for spatial context. (B) Same as (A) but for Penk which have posterior probability 0.12 of being periodic. Noise at the right side of “Sliver 1” cause the periodic covariance to not fit the data as well as squared exponential covariance.