Troubleshoot Excel GROWTH Function with FILTER and Dynamic Arrays
Question details
The user needs to troubleshoot a formula combining the GROWTH function with the FILTER function and dynamic arrays, which is not returning the expected result.

- Product
- Excel
- Device & OS
- not provided
- Scenario
- Using the statistical GROWTH function to calculate exponential trends based on dynamically filtered known_y and known_x arrays using the FILTER function.
- Observed behavior
- The formula fails, likely returning an error such as #VALUE! or #CALC!, because the filtered arrays contain mismatched dimensions, non-numeric values, or are completely empty.
Ensure you are using Excel 365 or Excel 2021, as the FILTER function and dynamic arrays are not supported in older versions.
Isolate and Test the Filtered Arrays Separately
Validate the outputs of your known_y and known_x FILTER formulas individually before nesting them inside the GROWTH function.
The GROWTH function strictly requires the known_y and known_x arrays to contain only numeric values and to have the exact same dimensions. If FILTER returns differently sized arrays or includes text, the overall formula will break.
Copy the FILTER formula used for the known_y argument (e.g., =FILTER(Actual_Base_25, criteria)) and paste it into a blank cell to ensure it successfully spills a column of numbers.
Copy the FILTER formula used for the known_x argument into another blank cell.
Check the spilled results of both formulas. Confirm that they have the exact same number of rows and that neither array contains headers, text values, or error codes.
Once verified, wrap them back into your main formula: =GROWTH(filtered_y, filtered_x, Regressed_Grade).

Add Error Handling for Empty Data Subsets
Prevent the entire formula from displaying #CALC! errors when the FILTER criteria yield no matching records.
Calculate Exponential Growth Easily with WPS Office
WPS Spreadsheet offers full support for advanced array functions, including GROWTH and dynamic array functions like FILTER. You can seamlessly calculate statistical trends with high compatibility with Microsoft Excel formulas.
- 1. Open your workbook: Launch WPS Spreadsheet and open the file containing your dataset.
- 2. Enter the GROWTH function: Select the cell where you want your trend calculation to appear and type =GROWTH(
- 3. Nest the FILTER functions: Input your FILTER formulas for the known_y's and known_x's directly into the GROWTH arguments.
- 4. Execute the dynamic array: Press Enter. WPS Spreadsheet will automatically calculate and spill the dynamic array results if multiple new_x values are provided.

Frequently Asked Questions
Why does my GROWTH function return a #VALUE! error when using FILTER?
The #VALUE! error typically occurs if the known_y and known_x arrays returned by your FILTER functions have different numbers of rows, or if the filtered data includes non-numeric characters like text or spaces.
What does the #CALC! error mean in this formula?
The #CALC! error indicates that your FILTER function found no data matching the specified criteria. Because it returns an empty array, the GROWTH function lacks the necessary data to perform its calculation.
Can I use named ranges with FILTER and GROWTH?
Yes. However, you must ensure that all named ranges used in your criteria and return arrays cover identically sized ranges. Additionally, ensure the named ranges do not accidentally include column headers.




