Nine orbital periods (kyr) at age_ma

The nine periods used by Acycle's COCO/eCOCO GUI (see calculate_orbit9()).

Usage

orbit9_at_age(age_ma, data_dir = NULL)

Arguments

age_ma

Age at which the nine periods are calculated, in Ma (single finite numeric value, 0 to 4429); it is rounded to the nearest whole Ma (see calculate_orbit9). Required (no default).

data_dir

Folder that contains the data tables AstroGeo22.txt and La04gisi.csv (character path). NULL uses getOption("cocoR.data") or the copies installed with WaverideR. Default=NULL.

Value

numeric vector of nine periods (kyr).