A data.frame containing monthly CO2 data and and annual average for each year. The original data has a sample size of 612, but the 5 of them which are missing was removed from our sample.
co2
A data frame with 13 columns (12 months and the annual average) and 51 rows (number of years).
Data used in the real data example, see vignette("co2"). It is obtained from https://cdiac.ess-dive.lbl.gov/ftp/trends/co2/maunaloa.co2. Atmospheric CO2 values (ppmv) derived from in situ air samples collected at Mauna Loa, Hawaii, USA.