I have several R Nodes and sometimes they fail for various reasons. WIth my Java nodes I figured out a way to send messages to the console, even in the middle of processing. Can this be done with R?
For the curious, here's the code that lets me do this from Java...
// Your custom imports: import org.knime.core.node.NodeLogger; // Your custom variables: NodeLogger logger = NodeLogger.getLogger(AbstractJSnippet.class); // Enter your code here: logger.error("Some error"); logger.warning("Some warning");