The Window Loop Start node takes a table as input and defines a window of a certain size. In each iteration a chunk of rows of the input table is returned and the window is moved by a defined step size until the end of the table is reached. The returned chunks contain rows, which lie within the window of the specific iteration. The size of the window is defined in terms of either the number of rows it contains or the date/time interval it covers.
Options
General Options
Advances Options
Popular Predecessors
Table Row to Variable4 %Row Filter (deprecated)4 %- Sorter3 %
- Table Creator3 %
- GroupBy3 %
- Column Filter2 %
CSV Reader2 %- Create Date&Time Range2 %
List Files2 %- Group Loop Start2 %
- Legacy Date&Time to Date&Time2 %
Column Appender2 %Excel Reader (XLS)2 %- Joiner2 %
- Table Row to Variable1 %
- List Files/Folders1 %
- Value Filter (legacy)1 %
- Domain Calculator1 %
- Row Sampling1 %
- Parallel Chunk Start1 %
- CSV Reader1 %
- Column Expressions1 %
- Java Snippet1 %
- Column Resorter1 %
Row Splitter (deprecated)1 %- String to Date&Time1 %
Loop End1 %- Column Aggregator1 %
- Table Transposer1 %
- Variable Expressions1 %
- Moving Aggregator1 %
- Column Appender1 %
- String Splitter (Regex)1 %
- Lag Column< 1 %
Joiner< 1 %- RowID< 1 %
- String Manipulation< 1 %
- Counter Generation< 1 %
- Math Formula< 1 %
- Date&Time-based Row Filter< 1 %
- Window Loop Start< 1 %
- Chunk Loop Start< 1 %
- Concatenate< 1 %
- Missing Value< 1 %
Column Rename< 1 %- Column Splitter< 1 %
- Rule-based Row Filter< 1 %
- Strings to Document< 1 %
- Date&Time Difference< 1 %
- Date&Time to String< 1 %
Extract Date&Time Fields< 1 %- Extract Duration Fields< 1 %
- Date&Time Shift< 1 %
- File Reader< 1 %
- Excel Reader< 1 %
- Read Excel Sheet Names< 1 %
- String to Path< 1 %
- Date&Time Part Extractor< 1 %
- Mask Date/Time (legacy)< 1 %
File Reader< 1 %- Rule Engine< 1 %
- Modify Time< 1 %
- Wait...< 1 %
- Extract Variables (Data)< 1 %
- Loop End (Column Append)< 1 %
String To Number< 1 %Recursive Loop Start< 1 %- Column Combiner< 1 %
- Partitioning< 1 %
- Color Manager< 1 %
- Integer Input (legacy)< 1 %
- Line Plot (JavaScript)< 1 %
- Parameter Optimization Loop Start< 1 %
Generic Loop Start< 1 %- Java Edit Variable (simple)< 1 %
- Slice Loop Start< 1 %
- Create Collection Column< 1 %
Table Column to Variable< 1 %Table Row To Variable Loop Start< 1 %Variable to Table Row< 1 %Database Reader< 1 %- Column List Loop Start< 1 %
Recursive Loop Start (2 ports)< 1 %- Reference Row Filter< 1 %
- Rule Engine Variable< 1 %
- IF Switch< 1 %
- Capture Workflow Start< 1 %
- DB Query Reader< 1 %
- Math Formula (Variable)< 1 %
- Date&Time Configuration< 1 %
- Date&Time Input (legacy)< 1 %
- Cell Splitter< 1 %
- Duplicate Row Filter< 1 %
- Missing Value (Apply)< 1 %
- Port to URI< 1 %
Counting Loop Start< 1 %- Auto-Binner< 1 %
- Constant Value Column< 1 %
- Math Formula (Multi Column)< 1 %
- UNIX Timestamp to Date&Time< 1 %
- Extract Time Window (legacy)< 1 %
- Total Count< 1 %
- Chunk Loop Run-for-time Loop Start< 1 %
Database Looping< 1 %Interval Loop Start< 1 %- Number to String< 1 %
- String to Number< 1 %
- Column to Grid< 1 %
- Double to Integer< 1 %
- Nominal Value Row Filter< 1 %
- Nominal Value Row Splitter< 1 %
- Reference Row Splitter< 1 %
- Ungroup< 1 %
- Unpivot< 1 %
- Value Counter< 1 %
- Statistics< 1 %
- Empty Table Switch< 1 %
- Extract Table Dimension< 1 %
- Parallel Chunk End< 1 %
- Time Series Generator< 1 %
- Boosting Learner Loop End< 1 %
- Java Snippet (simple)< 1 %
- Java IF (Table)< 1 %
- Integer Configuration< 1 %
- Python Source (legacy)< 1 %
- String to Duration< 1 %
- Date/Time Shift (legacy)< 1 %
- Table Column to Variable< 1 %
- Variable Loop End< 1 %
- Table Row to Variable Loop Start< 1 %
- X-Partitioner< 1 %
- Cross Joiner< 1 %
- Reference Column Filter< 1 %
- String Manipulation (Multi Column)< 1 %
- Rule-based Row Splitter< 1 %
- Integer Slider Configuration< 1 %
- Date&Time to legacy Date&Time< 1 %
- Time Generator (legacy)< 1 %
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Workflows
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Links
- KNIME E-Learning Course: Section 7.2. Re-executing Workflow Parts: Loopswww.knime.com/knime-introductory-course/chapter7/section2
- Drop down menu in a plotby armingrudd on 2020-06-28forum.knime.com/p/95440
- Booking time vs. cancellation correlationby armingrudd on 2019-05-12forum.knime.com/p/60388
- Moving average of closing price for securitiesby HansS on 2024-06-18forum.knime.com/p/260746
- Group By Timerangeby armingrudd on 2018-12-25forum.knime.com/p/52080
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