Two courses this summer.

Nondetects And Data Analysis, the course that illustrates methods for
correctly handling data with nondetects, will be held August 26-27 at
the Hilton Garden Inn Downtown in Austin, TX. Online registration is
available at
http://www.practicalstats.com/new_classes/classes.html.
Stop substituting one-half the detection limit, and make sense of data
with nondetects.
New topics include how to sum a series of components to get a total
when some components are nondetects.

Untangling Multivariate Relationships is our 2-day course covering the
multivariate methods of primary interest to environmental science,
focusing on what each method is designed to do, when to use them, and
when not to.
Methods that foster interpretation of relationships between chemical
and biological measures are highlighted.
UMR will be held Aug 24-25, 2009 at the Hilton Garden Inn Downtown in
Austin TX, just prior to the nondetects course.
Register online at our New Classes page (URL above).

Courses presented by Dennis R. Helsel, PhD

================================================== ===