Table 2. Errors in Atomization Energies (AE), Ionization Potentials (IP), Electron Affinities (EA), and Proton Affinities (PA) Relative to No RI Approximation for a Subset of the G3-05 Test Set^a.

	AE	IP	EA	PA
mean absolute error	0.03	0.0026	0.052	0.01
mean signed error	–0.03	0.0004	–0.052	–0.009
max error	0.22	0.0108	0.17	0.09

^aAll data is in kilocalories per mole.