Practical Stats Newsletters,
by date of issue
We send out a newsletter about once every two months to all who sign up for them. To receive them immediately, Subscribe here
Or download them from this archive once they are posted.
Our Fall 2002 newsletter on the adequacy of Excel as a statistics package has been replaced by the Oct 2009 newsletter below, and our Statistics with Excel? page.
We send out a newsletter about once every two months to all who sign up for them. To receive them immediately, Subscribe here
Or download them from this archive once they are posted.
Our Fall 2002 newsletter on the adequacy of Excel as a statistics package has been replaced by the Oct 2009 newsletter below, and our Statistics with Excel? page.
Nondetects in fields
outside of environmental science: what it can tell us
Is Excel an Adequate
Statistics Package? An update
A comparison of
Spearman's and Kendall's correlation coefficients, with reference
to an article by G. Noether
Ggobi: Multivariate
visualization
The Sign Test modified
for data with many ties, as with zero counts or nondetects
Principal Components vs
Factor Analysis vs Multiple Regression: How they differ.
Serial Correlation and
its effects on environmental stats
Review of lower-cost
statistical software. Part 2.
Review of lower-cost
statistical software. Part 1.
Logistic Regression - A
versatile and useful method
Sample size calculations
for nonparametric tests
Permutation Tests -
Avoiding restrictive test assumptions
The Cost of Statistical
Software
Kaplan-Meier with
Excel
Nonmetric MultDimensional
Scaling is an extremely useful plot for viewing multidimensional
patterns.
Equivalence Tests -
application to environmental decisions
The UCL95 with
nondetects
Free software: R and NADA
for R
Free software --
Dataplot
The quantile test, with
regulatory applications
Alternatives to
regression, and why to use them
Hypothesis tests for
censored data
Testing normality for
censored data
Pairing observations, a
good experimental design
Aitchison's DLOG method
-- its just substitution
Storing nondetects in
databases
Insider censoring
Better methods for
computing summary stats with nondetects
Scatterplots for censored
data
Correlation for censored
data
Cohen's method for
nondetects -- old technology
Why not substitute 1/2
the detection limit?
An Online Statistics
Manual