Скачать или смотреть GROUPBY Function in excel

The `GROUPBY` function in Excel is a powerful tool for summarizing your data. It lets you group rows based on certain criteria and then perform calculations on those groups. Here's a breakdown of what it does:

What it does:

Groups data based on one or more columns (e.g., categorize sales by product or year).
Applies aggregate functions (like SUM, AVERAGE, COUNT) to the grouped data.
Creates a summary table with group names and aggregated values.

Benefits of using GROUPBY:

Simplifies complex data analysis.
Makes trends and patterns easier to identify.
Saves time compared to manual calculations.

Basic syntax:

`=GROUPBY(groupby_array, data_array, aggregation_function)`

`groupby_array`: The column(s) used to group the data.
`data_array`: The column(s) containing the values to be aggregated.
`aggregation_function`: The function used to summarize the data (e.g., SUM, AVERAGE, COUNT).


Additional features:

Multiple grouping levels: Group by multiple columns to create nested summaries (e.g., group by year and then by quarter within each year).
Sorting and filtering: Sort the summarized data or filter groups based on specific criteria.
Lambda functions: Use lambda functions for more complex aggregations beyond basic functions like SUM or AVERAGE.


`GROUPBY` is a relatively new function and is only available in Excel versions for Microsoft 365 subscribers. If you have an older version, you can achieve similar results using pivot tables or other techniques.
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