Determine the predicted precession and obliquity periods based on Berger et al. (1992). Values are determined by piecewise linear interpolation.
bergerPeriods(age,genplot=T)
Age (millions of years before present)
Generate summary plots? (T or F)
A. Berger, M.F. Loutre, and J. Laskar, 1992, Stability of the Astronomical Frequencies Over the Earth's History for Paleoclimate Studies: Science, v. 255, p. 560-566.