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Dennis Helsel
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Applied Environmental Statistics 1: (Existing registrants only)
Available until
Make Sense of Your Data
Dennis Helsel
%
COMPLETE
Applied Environmental Statistics 2: (Existing registrants only)
Available until
Regression Models and Trend Analysis
Dennis Helsel
%
COMPLETE
Nondetects And Data Analysis (NADA): (Existing registrants only)
Available until
Statistical analysis of censored data (data with nondetects)
Dennis Helsel
%
COMPLETE
Bundle: AES 1 & 2: (Existing registrants only)
Available until
Make sense of your data, from the basics through trend analysis
2 Course Bundle
%
COMPLETE
Intro to R
Available until
Getting started with the free statistics software
Dennis Helsel
%
COMPLETE
FREE
Permutation Tests and Bootstrapping
Available until
Never worry about a normal distribution again!
Dennis Helsel
%
COMPLETE
FREE
Introduction to Nondetects And Data Analysis
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Simple things to do (and not do) with nondetects
Dennis Helsel
%
COMPLETE
FREE
Fitting Distributions to Data with Nondetects
Available until
Getting the most out of small datasets with NDs
Dennis Helsel
%
COMPLETE
FREE
Testing Group Differences w/NDs
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For Data with Multiple Detection Limits
Dennis Helsel
%
COMPLETE
FREE
The Mystery of Nondetects
Available until
How Censored Data Methods Work
Dennis Helsel
%
COMPLETE
FREE
Correlation and Regression for Data with NDs
Available until
without substituting values for nondetects
Dennis Helsel
%
COMPLETE
FREE
Trend Analysis for Data w/ NDs
Available until
Never substitute fractions of the detection limit
Dennis Helsel
%
COMPLETE
FREE
Incorporating > and < Values in Data Analysis
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Using interval censored methods
Dennis Helsel
%
COMPLETE
FREE
Matched Pair Tests
Available until
for Data With Nondetects
Dennis Helsel
%
COMPLETE
FREE
NADA2: Everything You Can Do With Nondetects
Available until
Preview the R package coming in early 2021
Dennis Helsel
%
COMPLETE
FREE
40 Years of Water Quality Statistics
Available until
What's New, What's Not
Dennis Helsel
%
COMPLETE
FREE
How Multiple Comparison Tests Work
Available until
Which of These Things is Different Than Others?
Dennis Helsel
%
COMPLETE
FREE