EPA.09.Ex.14.1.manganese.df
Manganese Concentrations from Example 14-1 of 2009 USEPA Guidance Document
EPA.02d.Ex.6.mg.per.kg.vec
Concentrations in Exhibit 6 of 2002d USEPA Guidance Document
EnvStats Functions for Data Transformations
EnvStats Functions for Plotting Probability Distributions
Copper Concentrations from Example 16-4 of 2009 USEPA Guidance Document
Silver Concentrations From An Interlab Comparison
Compute Lack-of-Fit and Pure Error Anova Table for a Linear Model
EPA.09.Ex.16.1.sulfate.df
Sulfate Concentrations from Example 16-1 of 2009 USEPA Guidance Document
Estimate Quantiles of a Generalized Extreme Value Distribution
Estimate Parameters of a Lognormal Distribution (Original Scale)
EPA.09.Ex.15.1.manganese.df
Manganese Concentrations from Example 15-1 of 2009 USEPA Guidance Document
EPA.09.Ex.11.1.arsenic.df
Arsenic Concentrations from Example 11-1 of 2009 USEPA Guidance Document
Chromium Concentrations from 1992 USEPA Guidance Document
EPA.09.Ex.18.2.chrysene.df
Chrysene Concentrations from Example 18-2 of 2009 USEPA Guidance Document
EPA.02d.Ex.9.mg.per.L.vec
Concentrations in Exhibit 9 of 2002d USEPA Guidance Document
EPA.09.Ex.21.6.nitrate.df
Nitrate Concentrations from Example 21-6 of 2009 USEPA Guidance Document
EPA.09.Ex.17.3.log.chrysene.df
Log-transformed Chrysene Concentrations from Example 17-3 of 2009 USEPA Guidance Document
Xylene Concentrations from Example 18-4 of 2009 USEPA Guidance Document
Vinyl Chloride Concentrations from Example 22-1 of 2009 USEPA Guidance Document
Carbon Tetrachloride Concentrations from Example 12-1 of 2009 USEPA Guidance Document
Compute the Power of a One-Way Fixed-Effects Analysis of Variance
EPA.09.Ex.21.5.beryllium.df
Beryllium Concentrations from Example 21-5 of 2009 USEPA Guidance Document
Benthic Data from Monitoring Program in Chesapeake Bay
Fit a Calibration Line or Curve
Aldicarb Concentrations from 1989 USEPA Guidance Document
Half-Width of Confidence Interval for Normal Distribution Mean or Difference Between Two Means
Log-transformed Nickel Concentrations from 1992 USEPA Guidance Document
Estimate Quantiles of a Zero-Modified Lognormal (Delta) Distribution
EPA.09.Ex.14.3.alkalinity.df
Alkalinity Measures from Example 14-3 of 2009 USEPA Guidance Document
Chlordane Concentrations from 1989 USEPA Guidance Document
Aldicarb Concentrations from 1989 USEPA Guidance Document
EPA.09.Ex.17.1.loglead.df
Log-transformed Lead Concentrations from Example 17-1 of 2009 USEPA Guidance Document
Total Organic Carbon Concentrations from 1989 USEPA Guidance Document
EPA.09.Ex.21.1.aldicarb.df
Aldicarb Concentrations from Example 21-1 of 2009 USEPA Guidance Document
Convert a Long Format Data Set into a Wide Format
Generalized Pivotal Quantity for Confidence Interval for the Mean of a Normal Distribution Based on Censored Data
Toluene Concentrations from 1992 USEPA Guidance Document
The Empirical Distribution Based on a Set of Observations
Calibration Data for Cadmium at Mass 111
EnvStats Functions for Printing and Plotting Objects of Various S3 Classes
Copper Concentrations from 1992 USEPA Guidance Document
Mixture of Two Lognormal Distributions (Alternative Parameterization)
Sample Coefficient of Variation.
Arsenic Concentrations from 1992 USEPA Guidance Document
Create Plots for a Sampling Design Based on a One-Way Fixed-Effects Analysis of Variance
Print Output of Objective for Box-Cox Power Transformations for an "lm" Object
EnvStats Functions for Monte Carlo Simulation and Risk Assessment
Estimate Probability Parameter of a Negative Binomial Distribution
Estimate Rate Parameter of an Exponential Distribution
Data Frame Summarizing Available Probability Distributions and
Estimation Methods
EnvStats Probability Distributions and Random Numbers
Lead Concentrations from 1994 USEPA Guidance Document
Estimate Parameters of a Normal (Gaussian) Distribution
Estimate Quantiles of a Binomial Distribution
Mixture of Two Lognormal Distributions
The Extreme Value (Gumbel) Distribution
Estimate Quantiles of a Negative Binomial Distribution
S3 Class "gofCensored"
Develop Gestalt of Q-Q Plots for Specific Distributions
EnvStats Functions for Prediction Intervals
Abstract: Hosking et al. (1985)
Euler's Constant
Estimate Mean and Coefficient of Variation for a Gamma Distribution Based on Type I Censored Data
Power of a t-Test for Linear Trend
Half-Width of Confidence Interval for Binomial Proportion or Difference Between Two Proportions
Prediction Interval for a Normal Distribution
Trichloroethylene Concentrations from Example 21-7 of 2009 USEPA Guidance Document
Empirical Cumulative Distribution Function Plot Based on Type I Censored Data
NIOSH Air Lead Levels Data
Compute Confidence Level Associated with a Nonparametric Confidence Interval for a Quantile
Tetrachloroethylene Concentrations from Example 16-5 of 2009 USEPA Guidance Document
Boxcox Power Transformation for Type I Censored Data
EPA.09.Ex.19.2.chloride.df
Chloride Concentrations from Example 19-2 of 2009 USEPA Guidance Document
EPA.09.Ex.16.2.benzene.df
Benzene Concentrations from Example 16-2 of 2009 USEPA Guidance Document
Lead Concentrations from 1989 USEPA Guidance Document
Coefficient of Skewness
Estimate Parameters of a Zero-Modified Normal Distribution
Generalized Pivotal Quantity for Tolerance Interval for a Normal Distribution Based on Censored Data
Chrysene Concentrations from 1992 USEPA Guidance Document
Empirical Cumulative Distribution Function Plot
Quantile-Quantile (Q-Q) Plot for Type I Censored Data
Arsenic concentrations from Example 7.1 of 2009 USEPA Guidance Document
Plotting Positions for Type I Censored Data
Base $b$ Representation of a Number
Estimate Parameters of a Pareto Distribution
S3 Class "gofOutlier"
Fisher's One-Sample Randomization (Permutation) Test for Location
Predict Concentration Using Calibration
Pointwise Confidence Limits for Predictions
predIntNparSimultaneousConfLevel
Confidence Level of Simultaneous Nonparametric Prediction Interval for Continuous Distribution
Print Output of Goodness-of-Fit Tests
Ethylene Thiourea Dose-Response Data
Benzene Concentrations from 1992 USEPA Guidance Document
Estimate Quantiles of a Logistic Distribution
predIntNormSimultaneousTestPower
Probability That at Least One Set of Future Observations Violates the Given Rule Based on a Simultaneous Prediction Interval for a Normal Distribution
Benzene Concentrations from 1992 USEPA Guidance Document
Rosner's Test for Outliers
Estimate Parameters of Gamma Distribution
S3 Class "gofTwoSample"
tTestLnormAltRatioOfMeans
Minimal or Maximal Detectable Ratio of Means for One- or Two-Sample t-Test, Assuming Lognormal Data
Plots for a Sampling Design Based on a One- or Two-Sample t-Test
Sample Size for a Specified Half-Width of a Prediction Interval for the next $k$ Observations from a Normal Distribution
S3 Class "htestCensored"
Estimate Parameters of a Generalized Extreme Value Distribution
Plot Results of Box-Cox Transformations
Atmospheric Environmental Conditions in New York City
Print Summary Statistics
Ozone Concentrations in the Northeast U.S.
Tolerance Interval for a Lognormal Distribution Based on Censored Data
Iron Concentrations from Example 13-1 of 2009 USEPA Guidance Document
Sample Size for Simultaneous Nonparametric Prediction Interval for Continuous Distribution
Expected Value of Order Statistics from Random Sample from Standard Normal Distribution
Simultaneous Prediction Interval for a Gamma Distribution
plotLinearTrendTestDesign
Plots for a Sampling Design Based on a t-Test for Linear Trend
Print Output of Permutation Tests
EPA.09.Ex.14.4.arsenic.df
Arsenic Concentrations from Example 14-4 of 2009 USEPA Guidance Document
Plot Results of Box-Cox Transformations for a Linear Model
Estimate Quantiles of a Gamma Distribution
EnvStats Functions for Estimating Distribution Parameters
Estimate Quantiles of a Distribution Nonparametrically
S3 Class "gofGroup"
Sample Size for a t-Test for Linear Trend
Plot Results of Goodness-of-Fit Test
Estimate Shape and Scale Parameters for a Gamma Distribution Based on Type I Censored Data
Estimate Quantiles of a Weibull Distribution
Geometric Standard Deviation.
Print Objects of Class "estimateCensored"
Example of Multiply Left-censored Data from Literature
Prediction Interval for a Poisson Distribution
Plot Results of Permutation Test
predIntNparSimultaneousTestPower
Probability That at Least One Set of Future Observations Violates the Given Rule Based on a Nonparametric Simultaneous Prediction Interval
Simultaneous Prediction Interval for a Lognormal Distribution
Prediction Interval for a Lognormal Distribution
Plots for a Sampling Design Based on a One- or Two-Sample t-Test, Assuming Lognormal Data
EPA.09.Ex.17.6.sulfate.df
Sulfate Concentrations from Example 17-6 of 2009 USEPA Guidance Document
Sample Size for Nonparametric Tolerance Interval for Continuous Distribution
S3 Class "permutationTest"
Compute Sample Size Necessary to Achieve a Specified Power for a One- or Two-Sample Proportion Test
Print Output of Hypothesis Tests Based on Censored Data
EPA.09.Ex.17.5.chloride.df
Chloride Concentrations from Example 17-5 of 2009 USEPA Guidance Document
Probability That at Least One Future Observation Falls Outside a Prediction Interval for a Normal Distribution
Estimate Probability-Weighted Moments
Internal EnvStats objects
Type I Error Level for a One- or Two-Sample t-Test
The Truncated Lognormal Distribution (Alternative Parameterization)
Tolerance Interval for a Normal Distribution
Abstract: Castillo and Hadi (1994)
S3 Class "boxcoxCensored"
Nonparametric Tolerance Interval for a Continuous Distribution
EPA.09.Ex.19.5.mercury.df
Mercury Concentrations from Example 19-5 of 2009 USEPA Guidance Document
EPA.02d.Ex.2.ug.per.L.vec
Concentrations in Exhibit 2 of 2002d USEPA Guidance Document
Tolerance Interval for a Lognormal Distribution
EPA.09.Ex.12.4.naphthalene.df
Naphthalene Concentrations from Example 12-4 of 2009 USEPA Guidance Document
Nickel Concentrations from 1992 USEPA Guidance Document
Estimate Parameter of a Hypergeometric Distribution
EnvStats Functions for Estimating Distribution Quantiles
EnvStats Functions for Summary Statistics and Plots
Sulfate Concentrations from Example 6-3 of 2009 USEPA Guidance Document
Estimate Parameter of a Poisson Distribution
The Zero-Modified Normal Distribution
EnvStats Functions for Tolerance Intervals
Estimate Parameters of an Extreme Value (Gumbel) Distribution
Estimate Quantiles of a Poisson Distribution
T-29 Concentrations from 1989 USEPA Guidance Document
EPA.09.Table.9.4.nickel.vec
Nickel Concentrations in Table 9-4 of 2009 USEPA Guidance Document
The Pareto Distribution
Kendall's Nonparametric Test for Montonic Trend
Estimate Quantiles of a Beta Distribution
Ammonium Concentration in Precipitation Measured at Olympic National Park Hoh Ranger Station
plotPredIntLnormAltTestPowerCurve
Power Curves for Sampling Design for Test Based on Prediction Interval for Lognormal Distribution
Estimate Quantiles of a Normal Distribution
Fecal Coliform Data from the Illinois River
Estimate Quantiles of a Zero-Modified Normal Distribution
The Three-Parameter Lognormal Distribution
S3 Class "estimateCensored"
Model Predictions
Plot Two Cumulative Distribution Functions
Plots for Sampling Design Based on One- or Two-Sample Proportion Test
The Chi Distribution
Plot Pointwise Error Bars
Confidence Level for Nonparametric Prediction Interval for Continuous Distribution
Coefficient of (Excess) Kurtosis
Goodness-of-Fit Test for a Specified Probability Distribution for Groups
Nonparametric Prediction Interval for a Continuous Distribution
Quantile-Quantile (Q-Q) Plot
Plot Results of Goodness-of-Fit Test to Compare Two Samples
Print Objects of Class "estimate"
Plots for a Sampling Design Based on a Nonparametric Tolerance Interval
EPA.02d.Ex.4.mg.per.kg.vec
Concentrations in Exhibit 4 of 2002d USEPA Guidance Document
Copper Concentrations from Example 17-4 of 2009 USEPA Guidance Document
Print Output of Hypothesis Tests
Nickel Concentrations from Example 20-1 of 2009 USEPA Guidance Document
Coverage for Nonparametric Tolerance Interval for Continuous Distribution
Benzene Concentrations from 1989 USEPA Guidance Document
predIntLnormAltSimultaneousTestPower
Probability That at Least One Set of Future Observations Violates the Given Rule Based on a Simultaneous Prediction Interval for a Lognormal Distribution
Plot Two Cumulative Distribution Functions Based on Censored Data
Predict Method for Linear Model Fits
Estimate Mean, Standard Deviation, and Standard Error Nonparametrically Based on Censored Data
Estimate Parameters of a Weibull Distribution
Analyte Concentrations from Example 14-8 of 2009 USEPA Guidance Document
Half-Width of a Tolerance Interval for a Normal Distribution
Summary Statistics
Tolerance Interval for a Gamma Distribution
EPA.09.Ex.17.2.toluene.df
Toluene Concentrations from Example 17-2 of 2009 USEPA Guidance Document
twoSamplePermutationTestLocation
Two-Sample or Paired-Sample Randomization (Permutation) Test for Location
Scaled Minimal Detectable Difference for One- or Two-Sample t-Test
S3 Class "calibrate"
Test for Homogeneity of Variance Among Two or More Groups
Compute the Value of $K$ for a Tolerance Interval for a Normal Distribution
Sodium Concentrations from Example 17-7 of 2009 USEPA Guidance Document
EPA.09.Ex.21.2.benzene.df
Benzene Concentrations from Example 21-2 of 2009 USEPA Guidance Document
Estimate Quantiles of a Normal Distribution Based on Type I Censored Data
Cadmium Concentrations from 1989 USEPA Guidance Document
Plot Probability Density Function
EPA.09.Ex.17.3.chrysene.df
Chrysene Concentrations from Example 17-3 of 2009 USEPA Guidance Document
Log-transformed Lead Concentrations from 1989 USEPA Guidance Document
EnvStats Functions for Trend Analysis
Plot Results of Goodness-of-Fit Test Based on Censored Data
Modified 1,2,3,4-Tetrachlorobenzene Data with Censored Values
Plots for a Sampling Design Based on a Nonparametric Prediction Interval
Mixture of Two Normal Distributions
Probability That at Least One Future Observation Falls Outside a Prediction Interval for a Lognormal Distribution
Package for Environmental Statistics, Including US EPA Guidance
EnvStats Functions for Censored Data
The Gamma Distribution (Alternative Parameterization)
The Generalized Extreme Value Distribution
S3 Class "summaryStats"
S3 Class "boxcox"
Estimate Quantiles of a Lognormal Distribution
The Lognormal Distribution (Alternative Parameterization)
Power of a One- or Two-Sample t-Test
Estimate Parameters of a Three-Parameter Lognormal Distribution (Log-Scale)
Print Output of Objective for Box-Cox Power Transformations
Geometric Mean
Estimate Probability Parameter of a Geometric Distribution
plotPredIntLnormAltSimultaneousTestPowerCurve
Power Curves for Sampling Design for Test Based on Simultaneous Prediction Interval for Lognormal Distribution
Boxcox Power Transformation
plotPredIntNormSimultaneousTestPowerCurve
Power Curves for Sampling Design for Test Based on Simultaneous Prediction Interval for Normal Distribution
Estimate Parameters for a Lognormal Distribution (Log-Scale) Based on Type I Censored Data
Estimate Quantiles of a Lognormal Distribution Based on Type I Censored Data
Estimate Quantiles of a Uniform Distribution
Estimate Parameters for a Normal Distribution Based on Type I Censored Data
Print Output of Two-Sample Goodness-of-Fit Tests
One-Sample Chi-Squared Test on Variance
twoSampleLinearRankTestCensored
Two-Sample Linear Rank Test to Detect a Difference Between Two Distributions Based on Censored Data
Estimate Parameters of a Zero-Modified Lognormal (Delta) Distribution
plotPredIntNparSimultaneousTestPowerCurve
Power Curves for Sampling Design for Test Based on Nonparametric Simultaneous Prediction Interval
Nonparametric Test for Monotonic Trend Within Each Season Based on Kendall's Tau Statistic
Print Output of Group Goodness-of-Fit Tests
Print Output of Goodness-of-Fit Tests Based on Censored Data
One-Sample or Paired-Sample Sign Test on a Median
Test for the Presence of Serial Correlation
1-D Scatter Plots with Confidence Intervals
Sample Size for a One- or Two-Sample t-Test
Arsenic Concentrations from 1992 USEPA Guidance Document
Gibbons.et.al.09.Vinyl.Chloride.vec
Vinyl Chloride Data from Gibbons et al. (2009)
Total Phosphorus Data from Chesapeake Bay
EPA.09.Ex.18.1.arsenic.df
Arsenic Concentrations from Example 18-1 of 2009 USEPA Guidance Document
Plot Cumulative Distribution Function
Estimate Quantiles of a Hypergeometric Distribution
Estimate Quantiles of a Geometric Distribution
Plot Results of Box-Cox Transformations Based on Type I Censored Data
Simultaneous Prediction Interval for a Normal Distribution
Nonparametric Simultaneous Prediction Interval for a Continuous Distribution
Test Whether the Shape Parameter of a Generalized Extreme Value Distribution is Equal to 0
Nickel Concentrations from Example 10-1 of 2009 USEPA Guidance Document
Arsenic Concentrations from 1992 USEPA Guidance Document
Manganese Concentrations from 1989 USEPA Guidance Document
Copper Concentrations from 1992 USEPA Guidance Document
1,2,3,4-Tetrachlorobenzene Concentrations from 1994 USEPA Guidance Document
Sample Size for Specified Half-Width of Confidence Interval for Binomial Proportion or Difference Between Two Proportions
Chen's Modified One-Sided t-test for Skewed Distributions
Estimate Parameters of a Uniform Distribution
Determine Detection Limit
Table of Confidence Intervals for Mean or Difference Between Two Means
EnvStats Functions Listed by Category
EnvStats Functions for Hypothesis Tests
Plots for Sampling Design Based on Confidence Interval for Binomial Proportion or Difference Between Two Proportions
Compute the Value of $K$ for a Simultaneous Prediction Interval for a Normal Distribution
Sample Size for a One- or Two-Sample t-Test, Assuming Lognormal Data
S3 Class "htest"
Arsenic, Mercury and Strontium Concentrations in Table 9-3 of 2009 USEPA Guidance Document
Trichloroethylene Concentrations from Example 18-3 of 2009 USEPA Guidance Document
Simulate a Vector of Random Numbers From a Specified Theoretical or Empirical Probability Distribution
S3 Class "boxcoxLm"
Full Complement of Summary Statistics
Ammonia Nitrogen Concentrations in the Skagit River, Marblemount, Washington
Estimate Parameter of a Binomial Distribution
Tolerance Interval for a Normal Distribution Based on Censored Data
EnvStats Functions for Calibration
EPA.09.Ex.22.2.Specific.Conductance.df
Specific Conductance from Example 22-2 of 2009 USEPA Guidance Document
Plots for a Sampling Design Based on a Prediction Interval for the Next $k$ Observations from a Normal Distribution
Print Output of Objective for Box-Cox Power Transformations Based on Type I Censored Data
Table of Confidence Intervals for Proportion or Difference Between Two Proportions
Estimate Parameters for a Lognormal Distribution (Original Scale) Based on Type I Censored Data
S3 Class "estimate"
Trichloroethene concentrations in Table 9.1 of 2009 USEPA Guidance Document
Copper and Zinc Concentrations in Shallow Ground Water
plotPredIntNormTestPowerCurve
Power Curves for Sampling Design for Test Based on Prediction Interval for Normal Distribution
The Triangular Distribution
Print Output of Goodness-of-Fit Outlier Tests
Interquartile Range
Compute the Power of a One- or Two-Sample Proportion Test
Show the EnvStats NEWS File
Sample Size for Specified Half-Width of Confidence Interval for Normal Distribution Mean or Difference Between Two Means
Plots for Sampling Design Based on Nonparametric Confidence Interval for a Quantile
Estimate Quantiles of an Exponential Distribution
Tolerance Interval for a Poisson Distribution
Estimate $L$-Moments
Estimate Parameters of a Lognormal Distribution (Log-Scale)
Estimate Quantiles of a Pareto Distribution
Carbon Monoxide Emissions from Oil Refinery.
Plot Empirical Probability Density Function
Plots for a Sampling Design Based on a Tolerance Interval for a Normal Distribution
Estimate Quantiles of an Extreme Value (Gumbel) Distribution
Scaled Minimal Detectable Slope for a t-Test for Linear Trend
Sample Size for a Nonparametric Prediction Interval for a Continuous Distribution
Sulfate Concentrations from 1989 USEPA Guidance Document
The Truncated Lognormal Distribution
Compute the Value of $K$ for a Prediction Interval for a Normal Distribution
Confidence Level for Nonparametric Tolerance Interval for Continuous Distribution
Carbon Tetrachloride Concentrations from 1992 USEPA Guidance Document
Two-Sample Linear Rank Test to Detect a Difference Between Two Distributions
Estimate Parameters of a Beta Distribution
Estimate Parameters of a Logistic Distribution
S3 Class "gof"
Goodness-of-Fit Test
Goodness-of-Fit Test for Normal or Lognormal Distribution Based on Censored Data
plotPredIntNparSimultaneousDesign
Plots for a Sampling Design Based on a Simultaneous Nonparametric Prediction Interval
Plot Results of Group Goodness-of-Fit Test
Plots for Sampling Design Based on Confidence Interval for Mean of a Normal Distribution or Difference Between Two Means
Chromium Concentrations from 1992 USEPA Guidance Document
Nickel Concentrations from 1992 USEPA Guidance Document
EnvStats Functions for Goodness-of-Fit Tests
twoSamplePermutationTestProportion
Randomization (Permutation) Test to Compare Two Proportions (Fisher's Exact Test)
The Zero-Modified Lognormal (Delta) Distribution
EDB Concentrations from 1989 USEPA Guidance Document
Gibbons.et.al.09.Alkilinity.vec
Alkilinity Data from Gibbons et al. (2009)
The Zero-Modified Lognormal (Delta) Distribution (Alternative Parameterization)
Apply a Box-Cox Power Transformation to a Set of Data
Half-Width of a Prediction Interval for the next $k$ Observations from a Normal Distribution
Minimal Detectable Difference Associated with a One- or Two-Sample Proportion Test
Compute p-Value for the Quantile Test
Simulate a Multivariate Matrix Based on a Specified Rank Correlation Mat
Power of a One- or Two-Sample t-Test Assuming Lognormal Data
Estimate Quantiles of a Three-Parameter Lognormal Distribution
Chlordane Concentrations from 1989 USEPA Guidance Document
The Truncated Normal Distribution
Prediction Interval for Gamma Distribution
Sample Size for a Specified Half-Width of a Tolerance Interval for a Normal Distribution
Estimate Mean of a Poisson Distribution Based on Type I Censored Data
Print Values
EPA.09.Ex.19.1.sulfate.df
Sulfate Concentrations from Example 19-1 of 2009 USEPA Guidance Document
Zinc Concentrations from 1992 USEPA Guidance Document
EnvStats Functions for Power and Sample Size Calculations
Compute Sample Size Necessary to Achieve Specified Power for One-Way Fixed-Effects Analysis of Variance
Sample Size for Nonparametric Confidence Interval for a Quantile
Two-Sample Rank Test to Detect a Shift in a Proportion of the "Treated" Population