1 / 1

Using the RExpression Actor in Kepler Workflows

Using the RExpression Actor in Kepler Workflows. Dan Higgins, Josh Madin National Center for Ecological Analysis & Synthesis (NCEAS) UC Santa Barbara. RExpression actors with customized R scripts and input/output ports can be saved and imported into Kepler actor list

terrene-cato
Download Presentation

Using the RExpression Actor in Kepler Workflows

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Using the RExpression Actor in Kepler Workflows Dan Higgins, Josh Madin National Center for Ecological Analysis & Synthesis (NCEAS) UC Santa Barbara • RExpression actors with • customized R scripts and input/output ports can • be saved and imported into Kepler actor list • Examples of some custom actors are shown here. • Provides tools for • users that are unfamiliar • with R scripts • RExpression actor executes ‘R’ scripts for data manipulation, statistical calculations, and graphics creation • Like the Expression actor, input ports are added with names that are used for input variables in the R script • Multiple output ports can be added with names matching R script parameter names • RExpression actors are especially useful for: • Reading & manipulating tabular data (data.frames) • sorting • subselections • reformatting • Performing many different statistical operations • RExpression actors can create a variety of graphs, plots, and visual displays • R creates pdf or png files; file name is supplied on RExpression output port For information on R: http://www.r-project.org Kepler: http://www.kepler-project.org SEEK: http://seek.ecoinformatics.org Work supported by the National Science Foundation under Grant 0225676 (SEEK)

More Related