NADA22.0.1 package

Data Analysis for Censored Environmental Data

anosimPlot

Permutation Analysis of Similarity (anosim) for Censored Data

ATS

Akritas-Theil-Sen line for censored data

ATSmini

Kendall's tau and ATS line for censored data

bestaic

Find the lowest AIC multiple regression model

binaryClust

Cluster Matrix of Binary Censored Data

binaryDiss

Binary dissimilarity coefficient matrix

binaryMDS

Plot Nonmetric Multidimensional Scaling of binary censored data

binarySim

Binary similarity coefficient matrix

cboxplot

Draws censored boxplots

cen_ecdf

Censored Empirical Cumulative Distribution Function

cen_paired

Censored data paired t-test

cen_signedranktest

Wilcoxcon Signed-Rank test for censored data

cen_signtest

Sign test for censored data

cen1way

Peto-Peto one-factor test

cen2means

Censored data two-group test for difference in means

cen2way

Parametric Two Factor Fixed Effects ANOVA for censored data

cenanova

ANOVA for censored data

cenboxplot

Produces a censored boxplot

cenCompareCdfs

Comparison of empirical cdf of censored data

cenCompareQQ

Censored Q-Q Plot comparison

cencorreg

Correlation and Regression with censored data

cenken

Compute Kendall's Tau Correlation and ATS Line for Censored Data

cenpar.usr

Internal: Get Plotting Limits in Log or Linear Scale

cenperm2

Censored two-group permutation test

cenpermanova

Censored data one-factor permutation test

cenPredInt

Prediction interval for censored data

cenQQ

Q-Q Plot censored data

cenregQQ

Q-Q plot of censored regression residuals

censeaken

Seasonal Kendall permutation test on censored data

censtats

Summary Statistics for Censored Data using ROS, MLE, and K-M

censummary

Summary Statistics for Censored Data

cenTolInt

Upper Tolerance interval for censored data

centrend

Trend analysis of censored data with a covariate

centrendsea

Trend analysis of censored data with a covariate and seasonal blocks

cenxyplot

Produces a censored x-y scatter plot

cfit

Compute an ECDF and Distribution Parameters for Censored Data

cohn

Calculate Cohn Numbers

computeS

Kendall's S-statistic for permutations of censored data

EM

EM Algorithm for Interval-Censored Data

equivalent_n

Censored data sample size

hc_ppoints_cen

Plotting Positions for Censored Observations (Cohn Method)

hc_ppoints_uncen

Plotting Positions for Uncensored Observations (Cohn Method)

hc_ppoints

Compute plotting positions for censored and uncensored data

kenplot

Plot robust median ATS line for censored data

Maclist

Create maximal antichains from interval data

Macmat

Create clique matrix and Petrie pairs from maximal antichains

markers

Markers

MLEintvl

Map maximal antichains to real-valued intervals

NADAList

NADA List Class

NADAprobs

Default Probability Values for Quantile Estimation

ordranks

Computes ranks of data with one or multiple detection limits

partplots

Partial plots for censored MLE regression

pctCen

Internal: Calculate Percent Censored Observations

ppw.test

Test for difference in left-censored samples

print.NADAList

Show Method for NADAList Objects

quantile_CI

quantile confidence interval

rescaleP

Rescale probability vector

ros-class

Class "ros"

ros

Regression on Order Statistics (ROS)

ROSci

Computes confidence intervals on regression on order statistics (ROS) ...

splitQual

Internal: Split Qualified Numeric Vector Into Observations and Censori...

uMDS

Plot U-score Nonmetric Multidimensional Scaling of censored data

Usc

U-scores for (non-interval, sinle-column) Censored Data

Usci

Interval-censored U-Score

uscore

U-score (individual value)

uscores

Uscores for multiple columns of censored data

uscoresi

U-scores for interval-censored data (multiple columns)

Contains methods described by Dennis Helsel in his book "Statistics for Censored Environmental Data using Minitab and R" (2011) and courses and videos at <https://practicalstats.com>. This package incorporates functions of NADA and adds new functionality.

  • Maintainer: Paul Julian
  • License: MIT + file LICENSE
  • Last published: 2025-09-30