fac {Rcriticor}

factor "year"

Description

factor "year" with seven levels, years 1974 to 1980

Usage

data(fac)

Format

The format is: Factor with 7 levels "1974","1975",..,1980: 1 1 1 2 2 2 3 3 3 4 ...7

Source

Pierre, J. S., Guillome, M. and Querrien, M. T. 1986. A Statistical and Graphic Method for Seeking in Which Periods of the Year Are the Animal Populations Peculiarly Sensitive to a Given Weather Component (Critical Periods of Time) - Application to the Case of Cereal Aphids. - Acta Oecologica-Oecologia Generalis 7: 365-380. (in french, english summary)

Examples

data(fac)
print(fac)