Package 'UsingR' - The Comprehensive R Archive Network

co2emiss 27FormatSourceThis data frame contains the following columns:wafer11 a numeric vectorwafer12 a numeric vectorwafer13 a numeric vectorwafer14 a numeric vectorwafer21 a numeric vectorwafer22 a numeric vectorwafer23 a numeric vectorwafer24 a numeric vectorFrom Kitchens’ Exploring StatisticsExamplesdata(chips)boxplot(chips)co2emissCarbon Dioxide Emissions from the U.S.A. from fossil fuelDescriptionUsageFormatDetailsCarbon Dioxide Emissions from the U.S.A. from fossil fueldata(co2emiss)The format is: Time-Series [1:276] from 1981 to 2004: -30.5 -30.4 -30.3 -29.8 -29.6 ...Monthly estimates of 13C/12C in fossil-fuel CO2 emissions. For write up see http://cdiac.esd.ornl.gov/trends/emis_mon/emis_mon_co2.html. In particular find:"An annual cycle, peaking during the winter months and reflecting natural gas consumption, anda semi-annual cycle of lesser amplitude, peaking in summer and winter and reflecting coal consumption,comprise the dominant features of the annual pattern. The relatively constant emissionsuntil 1987, followed by an increase from 1987-1989, a decrease in 1990-1991 and record highsduring the late 1990s, are also evident in the annual data of Marland et al. However, emissions havedeclined somewhat since 2000."