1. Counting Loop

<p><strong>Counting Loop</strong></p><p>This workflow implements two example of a counting loop with 4 iterations and two different loop endings - <em>Loop End</em> and <em>Loop End (Column Append node)</em>.</p><p>First, we generate fake data with 3 clusters over 2 coordinates (x,y). In each loop iteration, the input data table is processed in the loop body and a new data table is produced. In the Expression node, we add the current iteration number to the value of the x axis and overwrite its value (e.g., x+0 in the first iteration, x+1 in the second iteration, etc.).</p><p>At the end of the loop, we need a dedicated node to end the loop. Here we show to examples:</p><ol><li><p><em>Loop End</em>: Collects the results of each iteration by <strong>row-wise concatenation</strong> of the incoming tables.</p></li><li><p><em>Loop End (Column Append)</em>: Collects the results of each iteration by <strong>joining the tables on their RowIDs</strong>.</p></li></ol><p>Compare the resulting data tables of the loop end nodes and the scatter plots to see the difference.</p>