c1: COORDINATIONNUMBER SPECIESA=1-10 SPECIESB=1-200 SWITCH={RATIONAL R_0=1.0} LOWMEM
h: HISTOGRAM DATA=c1 GRID_BIN=200 GRID_MIN=0 GRID_MAX=10 BANDWIDTH=0.1 
iv: INTEGRATE_GRID GRID=h 

b: RESTRAINT ARG=iv AT=0.75 KAPPA=10.0 
PRINT ARG=iv,b.* FILE=colvar FMT=%8.4f
