Print_R_expressioninput11outputPrettyPrintRinput1output00 This call simply calls the R function print() on the R object, but we need to setup R to print its output to a file first, to allow Taverna to capture it properly. 2013-09-05 10:01:44.501 UTC net.sf.taverna.t2.activitiesrshell-activity1.4net.sf.taverna.t2.activities.rshell.RshellActivity input 1 false output 0 0 false localhost 6311 false false input R_EXP output TEXT_FILE net.sf.taverna.t2.coreworkflowmodel-impl1.4net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.4net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.4net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.4net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 1000 5000 0 net.sf.taverna.t2.coreworkflowmodel-impl1.4net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.InvokePrettyPrintRinputinputoutputPrettyPrintRoutput e9082383-3ff4-4954-b3c0-5e606851186b 2013-09-05 10:01:50.701 UTC Jonathan Giddy 2013-09-05 09:58:28.357 UTC Print R expression 2013-09-05 10:00:28.492 UTC deb0863c-b567-4755-af9c-b8b74d5e08e5 2013-06-21 14:31:25.529 UTC f64a2b4f-3d4f-4462-9739-f8a54199c3c8 2013-09-05 10:00:36.242 UTC This is a very small nested workflow to convert an R expression to the same textual representation that you see displayed when using the R command line. 2013-09-05 10:00:05.693 UTC 1c210d9a-059f-4c52-8df7-0310db5e211f 2013-06-21 14:30:38.141 UTC