Fig. 4: Radial distribution functions.
From: Atomic-level structure determination of amorphous molecular solids by NMR

The total radial distribution function G(r) (a, b) and the differential correlation function D(r) (c, d) measured from powder X-ray diffraction (see methods) (blue) and simulated (red) using (a, c) all molecules and (b, d) the best match ensemble by NMR. The lower panels show the residual between the experiment and simulations in each case, along with the RMSE obtained. The plots on the right of each panel show the range between 3 and 10 Å, and the RMSE in the corresponding range.