This user package implements the pressure correction to the barostat as outlined in: N. J. H. Dunn and W. G. Noid, "Bottom-up coarse-grained models that accurately describe the structure, pressure, and compressibility of molecular liquids," J. Chem. Phys. 143, 243148 (2015). doi: 10.1063/1.4937383 The USER-BOCS user package for LAMMPS is part of the BOCS software package: https://github.com/noid-group/BOCS See the following reference for information about the entire package: Dunn, NJH; Lebold, KM; DeLyser, MR; Rudzinski, JF; Noid, WG. "BOCS: Bottom-Up Open-Source Coarse-Graining Software." J. Phys. Chem. B. 122, 13, 3363-3377 (2018). Example inputs are in the examples/USER/bocs folder.