New tool: classconvergence

Last week, I finally took time to finish and upload another tool for helping analysis of cryo-EM data. This new tool is called classconvergence and does the same as countparticles, but for every iteration of a 2D or 3D classification job from RELION instead of a single iteration. It then plots the number of particles per class as a function of iteration number. This is convenient to check whether a classification has converged (after which the number of particles per class stops changing).

The tool can be installed with pip, cited with doi:10.5281/zenodo.4732050 and the code is available here.