Atrazine exceedances (Y/N) above 1 ug/L in streams throughout the Midwestern United States. Original concentration data were censored to show either greater than (1) or less than (0) 1 ug/L.
Objective -- determine if the pattern of atrazine concentrations above versus below 1 ug/L were related to seven environmental variables.
data(ReconLogistic)An object of class data.frame with 423 rows and 8 columns.
Mueller et al., 1997, Journal of Environmental Quality 26, pp. 1223-1230.
Chapter 12 of Helsel, Dennis R. (2012). Statistics for Censored Environmental Data using Minitab and R. John Wiley and Sons, USA, NJ..