Quantile function (inverse of the cdf). By definition, the quantile p * 100% for a strictly monotonically increasing cdf F is the value t that satisfies F(t) - p = 0. We solve for t using newton's method.

Quantile function (inverse of the cdf). By definition, the quantile p * 100% for a strictly monotonically increasing cdf F is the value t that satisfies F(t) - p = 0. We solve for t using newton's method.

qwei_series(p, shapes, scales, tol = 1e-05, t0 = 1)

Arguments

p

vector of probabilities.

shapes

vector of weibull shape parameters for weibull lifetime components

scales

vector of weibull scale parameters for weibull lifetime components

tol

stopping condition, default is 1e-5

t0

initial guess, default is 1