Logistic and odds functions and their inverses.
Logistic and odds functions and their inverses.
logit(p) antilogit(x) odds(p) antiodds(o)
p |
Probability value, a vector of numbers between 0 and 1, inclusive. |
x |
Real number, a vector of numbers between |
o |
Real number, a vector of numbers between |
Vector of real values log(p/(1-p)) for logit.
Vector of probabilities exp(x)/(1+exp(x)) for antilogit with
boundary values of -Inf and Inf for x correctly handled.
Vector of real values p/(1-p) for odds.
Vector of probabilities o/(o+1) for antiodds with the
boundary value of Inf for o correctly handled.
Richard M. Heiberger <rmh@temple.edu>
logit(seq(0, 1, .1)) antilogit(logit(seq(0, 1, .1))) odds(seq(0, 1, .1)) antiodds(odds(seq(0, 1, .1)))
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