This Node Is Deprecated — This node is kept for backwards-compatibility, but the usage in new workflows is no longer recommended. The documentation below might contain more information.
The Recursive Loop node pair enables the passing of a data table from the Recursive Loop End back to the Recursive Loop Start.
The Loop Start requires an initialized table. This table is output by the Recursive Loop Start in the first iteration of the loop.
The table received by the corresponding Recursive Loop End is passed back to the Recursive Loop Start node. Starting with the second iteration, the Recursive Loop Start node outputs the data as received by the Recursive Loop End.
The loop runs until one of the three stopping criteria is met:
- Maximum number of iterations: to ensure no endless loop is created, the loop will end after the set number of iterations.
- Minimal number of rows: to ensure enough rows are present for processing, the loop stops if it's input contains less rows than the set minimum.
- End loop with variable: the loop ends if the value of the selected variable equals "true"
The data passed to port 0 is collected and passed to the output port. The data in ports 1 and 2 is returned to the Recursive Loop Start Node.
Options
Popular Predecessors
Variable Loop End9 %Column Appender5 %Table Row to Variable3 %- Reference Row Filter3 %
- Row Splitter3 %
Table Row to Variable3 %- Math Formula2 %
Variable to Table Column2 %- Row Filter2 %
Loop End2 %- R Snippet2 %
Variable to Table Row1 %- Concatenate1 %
- Column Merger1 %
- GroupBy1 %
- Rule Engine1 %
- Table Transposer1 %
- Column Expressions1 %
- Reference Row Splitter1 %
- RowID1 %
- End IF1 %
- Duplicate Row Filter1 %
Concatenate (Optional in)1 %Cell Replacer1 %- String Manipulation (Multi Column)1 %
Table Column to Variable1 %- Catch Errors (Data Ports)1 %
- Java Edit Variable< 1 %
Recursive Loop Start (2 ports)< 1 %- Cross Joiner< 1 %
Column Rename< 1 %- Column Splitter< 1 %
- String Manipulation< 1 %
- String Replacer< 1 %
- Table Row to Variable< 1 %
- Variable Loop End< 1 %
Recursive Loop End (2 ports)< 1 %Recursive Loop End< 1 %- Column Rename (Regex)< 1 %
- Reference Column Filter< 1 %
- Partitioning< 1 %
- Rule-based Row Filter< 1 %
Variable to Table Column< 1 %- Column Auto Type Cast< 1 %
Recursive Loop Start< 1 %- Constant Value Column< 1 %
- Column Filter< 1 %
Joiner< 1 %- Round Double< 1 %
- Rule-based Row Splitter< 1 %
- Create Collection Column< 1 %
- Column Aggregator< 1 %
- String to Date&Time< 1 %
- Moving Aggregator< 1 %
- Joiner< 1 %
- Extract Variables (Data)< 1 %
Loop End (2 ports)< 1 %- Group Loop Start< 1 %
- MultiLayerPerceptron Predictor< 1 %
- Extract Table Dimension< 1 %
- Math Formula (Variable)< 1 %
Write MDB< 1 %- Breakpoint< 1 %
Generic Loop Start< 1 %- Sorter< 1 %
- Boolean Input (legacy)< 1 %
- Substructure Matcher< 1 %
CSV Writer< 1 %Database Writer< 1 %- Java Snippet< 1 %
- Loop End (Column Append)< 1 %
- Decision Tree Predictor< 1 %
- Column Combiner< 1 %
- Column Resorter< 1 %
- Fingerprint Similarity< 1 %
- Try (Data Ports)< 1 %
- Column Name Extractor< 1 %
- Row Sampling< 1 %
CASE Switch Data (Start)< 1 %Excel Reader (XLS)< 1 %- JSON to Table< 1 %
- ARIMA Predictor< 1 %
- Delete Files (legacy)< 1 %
- Table Creator< 1 %
- K Nearest Neighbor< 1 %
- Linear Regression Learner< 1 %
- Regression Predictor< 1 %
- Reference Column Resorter< 1 %
- Java Edit Variable (simple)< 1 %
- Integer Configuration< 1 %
- Date&Time Shift< 1 %
- RDKit Interactive Table< 1 %
- Wait< 1 %
Table Row To Variable Loop Start< 1 %- Variable to Table Row< 1 %
- Merge Variables< 1 %
- Counter Generation< 1 %
- Simulate Market< 1 %
- Inject Variables (Data)< 1 %
CSV Reader< 1 %Table Writer< 1 %- Chunk Loop Start< 1 %
- Tree Ensemble Predictor (Regression)< 1 %
- Missing Value< 1 %
- Rule Engine Variable< 1 %
CASE Switch Data (End)< 1 %Merge Variables< 1 %- Parallel Chunk End (multi port)< 1 %
PMML Predictor< 1 %- Java Snippet (simple)< 1 %
- String Matcher< 1 %
- Dictionary Replacer< 1 %
- Dictionary Tagger< 1 %
Python Script (1⇒1)< 1 %- Time to String (legacy)< 1 %
- Wait...< 1 %
Variable to Table Row< 1 %Variable Condition Loop End< 1 %- Simple Regression Tree Predictor< 1 %
- Bootstrap Sampling< 1 %
- Column Appender< 1 %
- Column Renamer (Dictionary)< 1 %
- Double to Integer< 1 %
- Reference Column Splitter< 1 %
- String Manipulation (Variable)< 1 %
- Ungroup< 1 %
- Value Counter< 1 %
- Rule Engine (Dictionary)< 1 %
- Rule-based Row Splitter (Dictionary)< 1 %
- Empty Table Switch< 1 %
- Global Timer Info< 1 %
- Random Matcher< 1 %
- DL Python Network Executor< 1 %
- Model to Cell< 1 %
- PMML to Cell< 1 %
- DL4J Feedforward Predictor (Regression) (legacy)< 1 %
- Java Snippet Row Splitter< 1 %
- Dictionary Filter< 1 %
- Weka Predictor (3.7)< 1 %
- String Input (legacy)< 1 %
- Date/Time Shift (legacy)< 1 %
- RDKit Diversity Picker< 1 %
- RDKit Molecule Substructure Filter< 1 %
- HTTP Retriever< 1 %
- Take Screenshot< 1 %
- Glide Ligand Docking< 1 %
- URL Decode< 1 %
- Variable to Table Column< 1 %
- Lag Column< 1 %
- Pivot< 1 %
- IF Switch< 1 %
- Save Workflow< 1 %
- DB Query Reader< 1 %
- ROC Curve (JavaScript)< 1 %
- RDKit Canon SMILES< 1 %
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(3D) Fragment library design workflowKNIME Hub- 00_Guided_Labeling_for_Document_Classification_(legacy)KNIME Hub
- 01_Creating_A_CorpusKNIME Hub
- 01_Creating_A_CorpusKNIME Hub
- 01_Creating_A_CorpusKNIME Hub
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