EnvStats

Trichloroethylene Concentrations Before and After Remedation

Benthic Data from Monitoring Program in Chesapeake Bay

Abstract: Castillo and Hadi (1994)

The Chi Distribution

Data Frame Summarizing Available Probability Distributions and Estimation Methods

Concentrations in Exhibit 2 of 2002d USEPA Guidance Document

Concentrations in Exhibit 4 of 2002d USEPA Guidance Document

Concentrations in Exhibit 6 of 2002d USEPA Guidance Document

Concentrations in Exhibit 9 of 2002d USEPA Guidance Document

Nickel Concentrations from Example 10-1 of 2009 USEPA Guidance Document

Arsenic Concentrations from Example 11-1 of 2009 USEPA Guidance Document

Carbon Tetrachloride Concentrations from Example 12-1 of 2009 USEPA Guidance Document

Naphthalene Concentrations from Example 12-4 of 2009 USEPA Guidance Document

Iron Concentrations from Example 13-1 of 2009 USEPA Guidance Document

Manganese Concentrations from Example 14-1 of 2009 USEPA Guidance Document

Alkalinity Measures from Example 14-3 of 2009 USEPA Guidance Document

Arsenic Concentrations from Example 14-4 of 2009 USEPA Guidance Document

Analyte Concentrations from Example 14-8 of 2009 USEPA Guidance Document

Manganese Concentrations from Example 15-1 of 2009 USEPA Guidance Document

Sulfate Concentrations from Example 16-1 of 2009 USEPA Guidance Document

Benzene Concentrations from Example 16-2 of 2009 USEPA Guidance Document

Copper Concentrations from Example 16-4 of 2009 USEPA Guidance Document

Tetrachloroethylene Concentrations from Example 16-5 of 2009 USEPA Guidance Document

Log-transformed Lead Concentrations from Example 17-1 of 2009 USEPA Guidance Document

Toluene Concentrations from Example 17-2 of 2009 USEPA Guidance Document

Chrysene Concentrations from Example 17-3 of 2009 USEPA Guidance Document

Log-transformed Chrysene Concentrations from Example 17-3 of 2009 USEPA Guidance Document

Copper Concentrations from Example 17-4 of 2009 USEPA Guidance Document

Chloride Concentrations from Example 17-5 of 2009 USEPA Guidance Document

Sulfate Concentrations from Example 17-6 of 2009 USEPA Guidance Document

Sodium Concentrations from Example 17-7 of 2009 USEPA Guidance Document

Arsenic Concentrations from Example 18-1 of 2009 USEPA Guidance Document

Chrysene Concentrations from Example 18-2 of 2009 USEPA Guidance Document

Trichloroethylene Concentrations from Example 18-3 of 2009 USEPA Guidance Document

Xylene Concentrations from Example 18-4 of 2009 USEPA Guidance Document

Sulfate Concentrations from Example 19-1 of 2009 USEPA Guidance Document

Chloride Concentrations from Example 19-2 of 2009 USEPA Guidance Document

Mercury Concentrations from Example 19-5 of 2009 USEPA Guidance Document

Nickel Concentrations from Example 20-1 of 2009 USEPA Guidance Document

Aldicarb Concentrations from Example 21-1 of 2009 USEPA Guidance Document

Benzene Concentrations from Example 21-2 of 2009 USEPA Guidance Document

Beryllium Concentrations from Example 21-5 of 2009 USEPA Guidance Document

Nitrate Concentrations from Example 21-6 of 2009 USEPA Guidance Document

Trichloroethylene Concentrations from Example 21-7 of 2009 USEPA Guidance Document

Vinyl Chloride Concentrations from Example 22-1 of 2009 USEPA Guidance Document

Specific Conductance from Example 22-2 of 2009 USEPA Guidance Document

Sulfate Concentrations from Example 6-3 of 2009 USEPA Guidance Document

Arsenic concentrations from Example 7.1 of 2009 USEPA Guidance Document

Trichloroethene concentrations in Table 9.1 of 2009 USEPA Guidance Document

Arsenic, Mercury and Strontium Concentrations in Table 9-3 of 2009 USEPA Guidance Document

Nickel Concentrations in Table 9-4 of 2009 USEPA Guidance Document

Aldicarb Concentrations from 1989 USEPA Guidance Document

Aldicarb Concentrations from 1989 USEPA Guidance Document

Benzene Concentrations from 1989 USEPA Guidance Document

Cadmium Concentrations from 1989 USEPA Guidance Document

Chlordane Concentrations from 1989 USEPA Guidance Document

Chlordane Concentrations from 1989 USEPA Guidance Document

EDB Concentrations from 1989 USEPA Guidance Document

Lead Concentrations from 1989 USEPA Guidance Document

Log-transformed Lead Concentrations from 1989 USEPA Guidance Document

Manganese Concentrations from 1989 USEPA Guidance Document

Sulfate Concentrations from 1989 USEPA Guidance Document

T-29 Concentrations from 1989 USEPA Guidance Document

Total Organic Carbon Concentrations from 1989 USEPA Guidance Document

Arsenic Concentrations from 1992 USEPA Guidance Document

Arsenic Concentrations from 1992 USEPA Guidance Document

Arsenic Concentrations from 1992 USEPA Guidance Document

Benzene Concentrations from 1992 USEPA Guidance Document

Benzene Concentrations from 1992 USEPA Guidance Document

Carbon Tetrachloride Concentrations from 1992 USEPA Guidance Document

Chrysene Concentrations from 1992 USEPA Guidance Document

Copper Concentrations from 1992 USEPA Guidance Document

Copper Concentrations from 1992 USEPA Guidance Document

Log-transformed Nickel Concentrations from 1992 USEPA Guidance Document

Nickel Concentrations from 1992 USEPA Guidance Document

Nickel Concentrations from 1992 USEPA Guidance Document

Toluene Concentrations from 1992 USEPA Guidance Document

Zinc Concentrations from 1992 USEPA Guidance Document

Chromium Concentrations from 1992 USEPA Guidance Document

Chromium Concentrations from 1992 USEPA Guidance Document

Lead Concentrations from 1994 USEPA Guidance Document

1,2,3,4-Tetrachlorobenzene Concentrations from 1994 USEPA Guidance Document

Calibration Data for Cadmium at Mass 111

The Extreme Value (Gumbel) Distribution

The Empirical Distribution Based on a Set of Observations

Internal EnvStats Objects

Package for Environmental Statistics, Including US EPA Guidance

Atmospheric Environmental Conditions in New York City

Euler's Constant

EnvStats Functions Listed by Category

EnvStats Functions for Calibration

EnvStats Functions for Censored Data

EnvStats Functions for Data Transformations

EnvStats Functions for Estimating Distribution Parameters

EnvStats Functions for Estimating Distribution Quantiles

EnvStats Functions for Goodness-of-Fit Tests

EnvStats Functions for Hypothesis Tests

EnvStats Functions for Monte Carlo Simulation and Risk Assessment

EnvStats Functions for Plotting Probability Distributions

EnvStats Functions for Creating Plots Using the ggplot2 Package

EnvStats Functions for Power and Sample Size Calculations

EnvStats Functions for Prediction Intervals

EnvStats Functions for Printing and Plotting Objects of Various S3 Classes

EnvStats Probability Distributions and Random Numbers

EnvStats Functions for Summary Statistics and Plots

EnvStats Functions for Tolerance Intervals

EnvStats Functions for Trend Analysis

The Generalized Extreme Value Distribution

The Gamma Distribution (Alternative Parameterization)

Alkilinity Data from Gibbons et al. (2009)

Vinyl Chloride Data from Gibbons et al. (2009)

Ethylene Thiourea Dose-Response Data

Adjusted Alpha Levels to Compute Confidence Intervals for the Mean of a Gamma Distribution

Example of Multiply Left-censored Data from Literature

Silver Concentrations From An Interlab Comparison

Paired Counts of Mayfly Nymphs Above and Below Industrial Outfalls

Abstract: Hosking et al. (1985)

Fecal Coliform Data from the Illinois River

The Three-Parameter Lognormal Distribution

The Lognormal Distribution (Alternative Parameterization)

Mixture of Two Lognormal Distributions

Mixture of Two Lognormal Distributions (Alternative Parameterization)

The Truncated Lognormal Distribution

The Truncated Lognormal Distribution (Alternative Parameterization)

Copper and Zinc Concentrations in Shallow Ground Water

Modified 1,2,3,4-Tetrachlorobenzene Data with Censored Values

NIOSH Air Lead Levels Data

Mixture of Two Normal Distributions

The Truncated Normal Distribution

Ammonium Concentration in Precipitation Measured at Olympic National Park Hoh Ranger Station

Ozone Concentrations in the Northeast U.S.

The Pareto Distribution

ProUCL Critical Values for Anderson-Darling Goodness-of-Fit Test for Gamma Distribution

ProUCL Critical Values for Kolmogorov-Smirnov Goodness-of-Fit Test for Gamma Distribution

Carbon Monoxide Emissions from Oil Refinery.

Ammonia Nitrogen Concentrations in the Skagit River, Marblemount, Washington

Total Phosphorus Data from Chesapeake Bay

The Triangular Distribution

The Zero-Modified Lognormal (Delta) Distribution

The Zero-Modified Lognormal (Delta) Distribution (Alternative Parameterization)

The Zero-Modified Normal Distribution

Compute Lack-of-Fit and Pure Error Anova Table for a Linear Model

Compute Sample Size Necessary to Achieve Specified Power for One-Way Fixed-Effects Analysis of Variance

Compute the Power of a One-Way Fixed-Effects Analysis of Variance

Base b Representation of a Number

Boxcox Power Transformation

S3 Class "boxcox"

Boxcox Power Transformation for Type I Censored Data

S3 Class "boxcoxCensored"

S3 Class "boxcoxLm"

Apply a Box-Cox Power Transformation to a Set of Data

Fit a Calibration Line or Curve

S3 Class "calibrate"

Plot Two Cumulative Distribution Functions

Plot Two Cumulative Distribution Functions Based on Censored Data

Plot Cumulative Distribution Function

Chen's Modified One-Sided t-test for Skewed Distributions

Half-Width of Confidence Interval for Binomial Proportion or Difference Between Two Proportions

Sample Size for Specified Half-Width of Confidence Interval for Binomial Proportion or Difference Between Two Proportions

Half-Width of Confidence Interval for Normal Distribution Mean or Difference Between Two Means

Sample Size for Specified Half-Width of Confidence Interval for Normal Distribution Mean or Difference Between Two Means

Compute Confidence Level Associated with a Nonparametric Confidence Interval for a Quantile

Sample Size for Nonparametric Confidence Interval for a Quantile

Table of Confidence Intervals for Mean or Difference Between Two Means

Table of Confidence Intervals for Proportion or Difference Between Two Proportions

Sample Coefficient of Variation.

Determine Detection Limit

Choose Best Fitting Distribution Based on Goodness-of-Fit Tests

S3 Class "distChoose"

Choose Best Fitting Distribution Based on Goodness-of-Fit Tests for Censored Data