Package: lognorm 0.1.9

lognorm: Functions for the Lognormal Distribution

The lognormal distribution (Limpert et al. (2001) <doi:10.1641/0006-3568(2001)051%5B0341:lndats%5D2.0.co;2>) can characterize uncertainty that is bounded by zero. This package provides estimation of distribution parameters, computation of moments and other basic statistics, and an approximation of the distribution of the sum of several correlated lognormally distributed variables (Lo 2013 <doi:10.12988/ams.2013.39511>) and the approximation of the difference of two correlated lognormally distributed variables (Lo 2012 <doi:10.1155/2012/838397>).

Authors:Thomas Wutzler

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lognorm.pdf |lognorm.html✨
lognorm/json (API)
NEWS

# Install 'lognorm' in R:
install.packages('lognorm', repos = c('https://bgctw.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/bgctw/lognorm/issues

On CRAN:

5.73 score 6 stars 59 scripts 362 downloads 25 exports 2 dependencies

Last updated 4 years agofrom:9cc622e5e3. Checks:8 OK. Indexed: yes.

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R-4.5-linuxOKFeb 02 2025
R-4.4-winOKFeb 02 2025
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R-4.3-winOKFeb 02 2025
R-4.3-macOKFeb 02 2025

Exports:computeEffectiveAutoCorrcomputeEffectiveNumObsestimateDiffLognormalestimateParmsLognormFromSampleestimateStdErrParmsestimateSumLognormalestimateSumLognormalSampleestimateSumLognormalSampleExpScalegetCorrMatFromAcfgetLognormMediangetLognormModegetLognormMomentsgetParmsLognormForExpvalgetParmsLognormForLowerAndUppergetParmsLognormForLowerAndUpperLoggetParmsLognormForMeanAndUppergetParmsLognormForMedianAndUppergetParmsLognormForModeAndUppergetParmsLognormForMomentspDiffLognormalSamplescaleLogToOrigscaleOrigToLogseCorsetMatrixOffDiagonalsvarCor

Dependencies:latticeMatrix

Approximating the difference of two lognormal random variables

Rendered fromlognormalDiff.Rmdusingknitr::rmarkdownon Feb 02 2025.

Last update: 2021-03-10
Started: 2020-06-30

Approximating the sum of lognormal random variables

Rendered fromlognormalSum.Rmdusingknitr::rmarkdownon Feb 02 2025.

Last update: 2021-03-10
Started: 2018-08-07

Using the lognorm package

Rendered fromlognorm.Rmdusingknitr::rmarkdownon Feb 02 2025.

Last update: 2021-03-10
Started: 2018-08-07

Readme and manuals

Help Manual

Help pageTopics
Estimate vector of effective components of the autocorrelationcomputeEffectiveAutoCorr
Compute the effective number of observations taking into account autocorrelationcomputeEffectiveNumObs
Inference on the difference of two lognormalsestimateDiffLognormal pDiffLognormalSample
Estimate lognormal distribution parameters from a sampleestimateParmsLognormFromSample estimateStdErrParms
Estimate the parameters of the lognormal approximation to the sumestimateSumLognormal estimateSumLognormalSample estimateSumLognormalSampleExpScale
Construct the full correlation matrix from autocorrelation components.getCorrMatFromAcf
Compute summary statistics of a log-normal distributiongetLognormMedian getLognormMode getLognormMoments
Calculate mu and sigma of lognormal from summary statistics.getParmsLognormForExpval getParmsLognormForLowerAndUpper getParmsLognormForLowerAndUpperLog getParmsLognormForMeanAndUpper getParmsLognormForMedianAndUpper getParmsLognormForModeAndUpper getParmsLognormForMoments
Scale standard deviation between log and original scale.scaleLogToOrig scaleOrigToLog
Compute the standard error accounting for empirical autocorrelationsseCor
set off-diagonal values of a matrixsetMatrixOffDiagonals
Compute the unbiased variance accounting for empirical autocorrelationsvarCor