defineStrata | R Documentation |
defines strata boundaries using the sqrt(f(y)) rule (Cochran 1977)
defineStrata(char, nstrata = 4, min.str = 0, max.str, place = 0)
char |
= vector of values of the variable used to define strata |
nstrata |
= number of strata desired |
min.str |
= minimum value of stratifing variable considered |
max.str |
= maximum value of stratifing variable considered |
place |
= decimal places used to define strata boundaries |
Brad Hubley
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