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Citrus Research and Education Center

Citrus Research and Education Center

Electropenetrography (EPG)

Data Analysis

There are six approaches to data analysis described herein. The first two "EPG-Calc" and "Sarria Workbook" are links to the respective web sites where these programs are maintained. The relevant literature citation is included.
 
The last three buttons lead to Dr. Tim Ebert’s SAS programs. The first is Dr. Ebert’s improved version (Backus 2.0) of the original SAS program, Backus 1.0.  The second button leads to an extensive tutorial for Dr. Ebert’s programs, and the third button allows download of multiple Ebert programs for organizing and analyzing EPG data.  These are (in order of use): various File Manipulation programs, Error Checker, Trimmer, and a selection of analysis programs: Ebert 1.0, Ebert 2.0, or Ebert Generic.

Please read "Data Analysis Using the Ebert 1.0 Suite of Programs under “Read Me First” Under the Ebert Tutorial  It may also be helpful to go through the "Worked Examples".  

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  • AC-DC EPG
  • Data Analysis 
  • Electropenetrography (EPG) Online Workshop
  • 2024 International EPG Conference and Workshop

Data Analysis

  • EPG-Calc
    • EPG-Calc

    EPG-Calc citation

    Giordanengo P. 2014. EPG-Calc: a PHP-based script to calculate electrical penetration graph (EPG) parameters. Arthropod-Plant Interactions, 8(2):163-169 >>> (journal link)

  • Sarria Workbook
    • Saria Workbook

    Sarria Workbook citation

    Sarria, E., Cid, M., Garzo, E., and A. Fereres. 2009. Workbook for automatic parameter calculation of EPG data. Computers and Electronics in Agriculture. 67:35-42.

  • Backus 2.0

    Backus 2.0

  • Ebert Tutorials

    Read Me First

    Lectures 1 to 8 Probe

    • Analysis Lectures 1 Overview
    • Analysis Lectures 2 Calculating and History
    • Analysis Lectures 3 Download and description
    • Analysis Lectures 4 FileManipulation
    • Analysis Lectures 5 Error Checking
    • Analysis Lectures 6 Trimmer option
    • Analysis Lectures 7 Error Checker reprise
    • Analysis Lectures 8 Data Analysis

    Lectures 1 to 8 Windaq

    • Analysis Lectures 1 Overview
    • Analysis Lectures 2 Calculating and History
    • Analysis Lectures 3 Download and description
    • Analysis Lectures 4 FileManipulation
    • Analysis Lectures 5 Error Checking
    • Analysis Lectures 6 Trimmer option
    • Analysis Lectures 7 Error Checker reprise
    • Analysis Lectures 8 Data Analysis
    • Path Names

    Lectures 9 to 11

    • Analysis Lectures 9 Sample Size Part 1
    • Analysis Lectures 10 Backus Program
    • Analysis Lectures 11 Data Errors
    • Excell Skill Module
    • Hierarchy 021417
    • AphidData1err
    • Exercize1e
    • MysteryData1
    • PsyllidData1
    • PsyllidData1A
  • Ebert Programs

     

    SAS mimic of Sarria

    Ebert 1.0

    Click below to download files

    • Data Analysis Using the Ebert 1.0 Suite of Programs (PDF)
    • Ebert 1 0.sas
    • Error Checker 100716.sas
    • FileManipP 080714.sas
    • FileManipW 100814.sas
    • FileManipW2 082117.sas
    • Trimmer 102414.sas

    Worked Examples

    • Test Example Documentation 103014 (PDF)
    • Aphid Data
    • Psyllid Data

    Ebert Generic

    • Ebert Generic

    Ebert 2.0 (Psyllids)

    • Ebert 2.01 (Psyllids)
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