## S3 method for class 'CnChipEffectFile':
getCellIndices(this, units=NULL, ..., unlist=FALSE, force=FALSE, .cache=TRUE,
verbose=FALSE)NULL, all units are considered.getCellIndices()
of ChipEffectFile.TRUE, the cell indices are re-read regardless whether
they are already cached in memory or not.TRUE, the result is cached in memory.Verbose.CnChipEffectFile.