Transforming data - bonus lesson

Count by group

The Count by group step allows you to quickly summarize data by counting occurrences within your dataset. It’s particularly useful for flagging duplicate values that exist in a dataset.  

How to use the step

  1. Drag a Count by group step onto the canvas. 
  2. Select the column(s) that you want to count unique values within. 
    • Ex) If you want to count up how many orders were placed each month, you would just select the Month column. 
      • If you want to count up how many orders were placed each month by state, you would select both Month and State. 

Pro tip 

  • If you want to alert the team of duplicates in your dataset, after the Count by group step, use the Filter rows and Email a CSV attachment steps to notify the team about duplicate values. 

To learn more, check out our support docs

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