calc_qlpearsonIII {HyMETT}

Quantile of Pearson Type III distribution for log-transformed data

Description

Quantile of Pearson Type III distribution for log-transformed data

Usage

calc_qlpearsonIII(p, meanlog = 0, sdlog = 1, skew = 0)

Arguments

p

Vector of non-exceedance probabilities, between 0 and 1, to calculate quantiles.

meanlog

Vector of mean of the distribution of the log-transformed data.

sdlog

Vector of standard deviation of the distribution of the log-transformed data.

skew

Vector of skewness of the distribution of the log-transformed data.

Details

calc_qpearsonIII and calc_qlpearsonIII are functions to fit a log-Pearson type III distribution from a given mean, standard deviation, and skew. This source code is replicated, unchanged, from the swmrBase package in order to reduce the dependency on that package.

Value

Quantiles for the described distribution

References

Asquith, W.H., Kiang, J.E., and Cohn, T.A., 2017, Application of at-site peak-streamflow frequency analyses for very low annual exceedance probabilities: U.S. Geological Survey Scientific Investigation Report 2017–5038, 93 p. [Also available at https://doi.org/10.3133/sir20175038.]

Lorenz, D.L., 2015, smwrBase—An R package for managing hydrologic data, version 1.1.1: U.S. Geological Survey Open-File Report 2015–1202, 7 p.
[Also available at https://doi.org/10.3133/ofr20151202.]

See Also

calc_qpearsonIII

Examples

calc_qlpearsonIII(0.1)