Open in R

This node opens a local R session and pushes the data table from KNIME into R.
The input data table is sent to R as a data frame named "kIn". If the optional input ports are used then data frames are named "kIn1", "kIn2" and "kIn3".

IMPORTANT :
This node is using R as back end, make sure that Rserve is running somewhere, and KNIME is accordingly configured (KNIME->Preferences->KNIME->R-Scripting). Scripting integration Wiki (R server)

Options

Chunk size to push incoming data
Number of columns to push as one data chunk to R. The default (-1) leads to data transfer without splitting the data in chunks.
Chunk size to pull result data
Not used for this node.

Input Ports

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A data table to be pushed to R
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First optional data table to be pushed to R
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Second optional data table to be pushed to R

Output Ports

This node has no output ports

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Links

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Installation

To use this node in KNIME, install the extension KNIME R Scripting extension from the below update site following our NodePit Product and Node Installation Guide:

v5.9
Plugin provider: Max Planck Institute of Molecular Cell Biology and Genetics (MPI-CBG)
Plugin version: 5.5.0.v202511071304
On NodePit since: 2025-12-12
Last update: 2026-01-21
KNIME versions: v5.9, v5.8, v5.7, v5.6, v5.5, v5.4, v5.3, v5.2, v5.1, v4.7, v4.6, v4.5, v4.4, v4.3, v4.2, v4.1, v4.0, v3.7, v3.6

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