Figure 3: Diffusion map analysis of all the hits reduced to two dominant dimensions Φ1 and Φ2 as described in the text.
From: Coherent soft X-ray diffraction imaging of coliphage PR772 at the Linac coherent light source

Clustering helps identify the single particle diffraction patterns in the dataset. In addition to single hits (a) and multiple hits (b), the spherical particles (c) classified as ‘water’ may also contain contaminant residue from the sample and buffer. Additionally slightly larger than average background scattering (d) and frames with a defective readout (e) are also shown in the diffusion map.