A2T(x, action, byref, ...)# S3 method for default
A2T(x, action = NULL, byref = FALSE, ...)
# S3 method for filter_spct
A2T(x, action = "add", byref = FALSE, ...)
# S3 method for filter_mspct
A2T(x, action = "add", byref = FALSE, ...)
default: Default method for generic function filter_spct: Method for filter spectra filter_mspct: Method for collections of filter spectra
T2A,
as_energy, as_quantum_mol,
as_quantum,
e2qmol_multipliers,
e2quantum_multipliers, e2q,
q2e