Multivariate Data Analysis Using PC‑ORD

Short-courses on analyzing species community data with the PC‑ORD software package.

Upcoming Trainings:

    • 19-23 February 2018, 10:00-15:00 EST daily (with 1 hr break)
    • 2-4 May 2018, 08:00-16:00 Hawaii-Aleutian Time (UTC -10) daily (with 1 hr break)
      • This training may be attended online (but note time zone) OR in person in Honolulu, Hawaii
    • November 2018

    Note that the registration deadline is usually 2 weeks in advance of the course.  Visit the Workshops or Webinars pages for more details.

    About the Trainings

    Workshops for novices in the use of PC‑ORD and in multivariate analyses in general have been developed to provide training in three areas:

    1. a 10-step analysis process for defensible analysis and interpretation
    2. the PC‑ORD software (through version 7), to understand how to use these tools properly
    3. multivariate community analyses, to know what tools are available and generally what they do


    Tools are introduced, explained, and demonstrated in the order in which you would use them while conducting an analysis. Topics include:

    • importing, screening, and restructuring your data prior to analysis
    • exploring and preparing the data for analysis and selecting the appropriate tools
    • guided ordination tools (weighted averaging, polar ordination, CCA, RDA, fuzzy set ordination)
    • free ordination tools (PCA, NMS)
    • classification tools (cluster analysis, two-way cluster analysis)
    • group-testing tools (MRPP, PerMANOVA, Indicator Species Analysis)
    • association assessment tools (Mantel Test, Fourth Corner Analysis)
    • interpretation, manipulation, and communication of graphs

    Training Options

    • Workshops allow you to attend in person, providing the opportunity to make inquiries about your own data and analyses.

    • Webinars allow you to attend via the Internet, eliminating travel costs, but are only available if you have high bandwidth.


    Trainings are taught by Dr. JeriLynn Peck, who studied with the author of the software (Dr. Bruce McCune) at Oregon State University and has been offering workshops since 1997. Dr. Eric K. Zenner, with a background in applied univariate statistics, sometimes provides assistance.


    Registration fees for most trainings are in the $400-$450 range, with lower fees for students (~$225) and workshop hosts. This fee does not include the software or companion book, which must be ordered from the software company. Payment for the workshop fee is accepted in the form of checks made out to "Penn State" or by credit card. Certificates of completion are available upon request.

    About PC‑ORD

    There are few statistical packages specifically designed for community analyses; PC‑ORD brings together in one place many relevant analyses that are otherwise only found scattered among different software packages. Further, because PC‑ORD was written with community ecologists in mind, it includes several procedures and options that are best suited for species data yet found nowhere else. Current trainings cover procedures available in PC‑ORD version 7. Because later versions of PC‑ORD build on previous versions, everything in version 6 will be covered during the training, plus additional features in version 7. Thus, if you have not updated to version 7, everything in versions 5 and 6 will be covered plus there will be some new tools introduced that you don't yet have.

    If you are curious, have questions, or perhaps advice you'd like to share with the PC‑ORD community, consider joining the PC‑ORD GoogleGroup.

    Past Trainings

    Over 60 trainings have been held throughout the United States and abroad. Past workshop hosts have included:

    • Northern Alberta Institute of Technology, Canada
    • Institute of Technology, Sligo, Ireland
    • Technical University of Dresden, Germany
    • University of Kaiserslautern, Germany
    • University of Cape Town, South Africa
    • University of Ljubljana, Slovenia
    • National University of Ireland, Galway, Ireland
    • Universidad del Turabo, Gurabo, Puerto Rico
    • University of Alaska International Arctic Research Center, Fairbanks, AK
    • University of Florida, Gainesville, FL
    • University of Massachusetts Cranberry Biological Station, East Wareham, MA
    • Antioch New England Graduate School, Keene, NH
    • Alaska Pacific University, Anchorage, AK
    • California State University, Sacramento, CA
    • Clemson State University, Clemson, SC
    • Florida Atlantic University, Boca Raton, FL
    • Oregon State University, Corvallis, OR
    • USDA Southern Research Station, Knoxville, TN
    • USGS Utah Water Science Center, Salt Lake City, UT
    • US Geological Survey, Flagstaff, AZ
    • US Geological Survey, Davis, CA
    • National Oceanic and Atmospheric Administration, Newport, OR
    • US Park Service Santa Monica Mountains NRA, Thousand Oaks, CA
    • US Park Service, Fairbanks, AK
    • US Park Service, Minneapolis, MN
    • Western Fisheries Research Center, Seattle, WA
    • US Bureau of Reclamation, Denver, CO
    • US Forest Service Mt. Hood National Forest, Sandy, OR
    • US Forest Service, Davis, CA
    • US Forest Service at Research Triangle Park, Raleigh, NC
    • Aquatic Ecology Limited, Christchurch, New Zealand
    • Missouri Department of Conservation, Columbia, MO
    • NatureServe, Blaine, WA


    Average evaluation scores, based on 2016-2017 participants (N = 80) on a scale from 1 (worst) to 7 (best):

    course:  6.3

    instructor:  6.7