How to Group Data by Week in Pivot Table in Google Sheets

GiGiKing·March 25, 2024·0 comments

You might have come across situations where you need to analyze and summarize data by week in Google Sheets. While Excel Pivot Tables have a feature to group data by days and select a number of days to get a weekly summary, unfortunately, this feature is not available in Google Sheets. But don’t worry, I’m here to show you two simple approaches to group data by week in a Pivot Table in Google Sheets.

Approach 1: Grouping by Week Numbers

To group data by week numbers in a Pivot Table, follow these steps:

  1. Start by preparing your data. In this example, let’s assume you have dates in column A and expenses in column B.
  2. Add a helper column, C, and enter the field label ‘Week’ in cell C1.
  3. In cell C2, enter the formula =ArrayFormula(IFERROR(WEEKNUM(DATEVALUE(A2:A), 1))). This formula converts the dates into week numbers.
  4. Now, you can create a Pivot Table by clicking on Insert > Pivot Table.
  5. In the Pivot Table editor, under “Data Range,” enter A:C to include all the data.
  6. Select where you want the Pivot Table to be inserted, either in the current sheet or a new sheet.
  7. Click “Create” to generate the layout.
  8. Add the ‘Week’ field to the Rows and the ‘Expenses’ field to the Values.
  9. Voila! You have successfully grouped the data by week numbers in the Pivot Table.

Approach 2: Grouping by Week Ranges

If you prefer to group the data by week ranges, here’s what you need to do:

  1. Start by preparing your data. Follow the same steps as in Approach 1 to create the ‘Week’ helper column.

  2. In cell C2, enter the following formula:

    =ArrayFormula(LET(range, A2:A, n, (MAX(range)-MIN(range))/7, weeks, IFNA(HSTACK(SEQUENCE(n+1, 1, MIN(range), 7), IFERROR(SEQUENCE(n, 1, MIN(range)+6, 7), MAX(range))), MAX(range)), formatted, HSTACK(TEXT(SEQUENCE(ROWS(weeks)), "00."), TEXT(CHOOSECOLS(weeks, 1), "DD/MM/YYYY"), IF(CHOOSECOLS(weeks, 1), "-",), TEXT(CHOOSECOLS(weeks, 2), "DD/MM/YYYY")), weekrange, TRANSPOSE(QUERY(TRANSPOSE(formatted),, 9^9)), XLOOKUP(range, CHOOSECOLS(weeks, 1), weekrange, ,-1)))

    This formula converts the dates into week ranges.

  3. Follow the same steps as in Approach 1 to create a Pivot Table, but this time, add the ‘Week’ field to the Rows and the ‘Expenses’ field to the Values.

  4. Congratulations! You have successfully grouped the data by week ranges in the Pivot Table.

Bonus Tip: Aligning Group by Week Number and Week Range Results

After grouping the data using both approaches, you might notice that the results may not match. Don’t worry; you can align them by following these steps:

  1. In any blank cell, enter the formula =MIN(A2:A)-WEEKDAY(MIN(A2:A))+1 to find the Sunday prior to the lowest date in column A.
  2. Manually enter the date returned by the formula under the first non-blank cell in column A.
  3. In the Pivot Table editor, add the ‘Date’ field above the ‘Week’ field.
  4. Right-click on any date in the Pivot Table report and select “Create pivot date group,” then “Year.”
  5. Now, your results from both approaches will be aligned.

That’s it! You now know how to group data by week in a Pivot Table in Google Sheets using two different approaches. Have fun analyzing and summarizing your data!

For more helpful tips and tricks on Google Sheets, visit Crawlan.com.

Resources:

GiGiKing

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