## What is DMAX Function in Excel?

The **DMAX **function is one of the **Database** functions of Excel.

**DMAX **function returns the largest number in the** field (column) of records** in the database that matches the conditions you specify.

We can find this function in the** **Database category of the insert function Tab.

## How to use **DMAX **function in excel

- Click on
**an empty cell**(like F5 )

2. Click on the **fx **icon (or press** shift+F3**)

3. In the **insert function tab **you will see all functions

4. Select **Database** category

5. Select th**e DMAX **function

6. Then select **ok**

7. In the function arguments Tab you will see **DMAX **function

8. In the **Database section** you can enter the range of cells that makes up the list or database. A database is a list of related data (ex: Table1)

9.** Field section** is either the label of the column in double quotation marks or a number that represents the **column’s position** in the list (ex: C1)

10. **Criteria section** is the range of cells that contains the conditions you specify. The range includes a **column label** and one cell **below the label** for a condition (ex: Table1)

11. You will see the **result **in formula result section

## Examples of DMAX function in excel

**Example1:**

### calculate the max of student age with DMAX function

`=Dmax`**(Table1[#All],"Age",Table1[#All])**----->>>>answer is 29

**Example 2: **

### calculate the max of student height with DMAX function

`=Dmax`**(Table1[#All],"Height",Table1[#All])**----->>>>answer is 210

**Example 3: **

### calculate the max of student age>22 height<205 weight>230 with DMAX function

`=Dmax`**(Table7[#All],"Age",B1:D2)**----->>>>answer is 29

## Python code for **DMAX** function

**DMAX**Name | Age | Height | Weight |

Olivia | 25 | 210 | 180 |

Noah | 25 | 205 | 235 |

Oliver | 27 | 195 | 205 |

Elijah | 22 | 198 | 185 |

James | 29 | 199 | 231 |

William | 29 | 201 | 240 |

Benjamin | 21 | 202 | 235 |

Lucas | 25 | 200 | 238 |

Henry | 22 | 204 | 190 |

```
import pandas as pd
df=pd.read_csv(‘example.csv’)
maxdf = df.max(axis=0, numeric_only= True)
print (maxdf)
```

## What is the purpose of **DMAX** function?

It returns the largest number in the** field (column) of records** in the database that matches the conditions you specify.

## What is the Return value of DMAX function?

It just return number.

**Dmax** (database, field, criteria)=number

## Which version of excel supports DMAX function?

This function is available for all excel **versions **(2003-2019)

## Errors in DMAX function

If no record matches the criteria, DMAX returns the 0 value.

If more than one record matches the criteria, DMAX returns one of the largest value.

## Conditions and criteria range in **DMAX** function

### Criteria argument in **DMAX** function

**DMAX**

we can define any range for the criteria argument: it has 2 condition

1. It includes at least one column label

2. It includes at least one cell under the column label.

For example, if the range A1:A2 contains “Name” in A1 and “Benjamin” in A2,

you could define A1=”Name” & A2=”Benjamin”

**DMAX** function find the word of “Benjamin” under “name” column

### location of Criteria range in **DMAX** function

**DMAX**

Although the criteria range can be located anywhere on the worksheet, do not place the criteria range below the list. If you add more information to the list, the new information is added to the first row below the list. If the row below the list is not blank, Microsoft Excel cannot add the new information.

Make sure that the criteria range does not overlap the list.

To perform an operation on an entire column in a database, enter a blank line below the column labels in the criteria range.

## Examples of DMAX function in Excel

- =DMAX(A1:F50,”Sales”,A1:B2) – This formula finds the maximum value of “Sales” in the range A1:F50, where “Region” is either “North” or “South”.
- =DMAX(A1:F50,”Revenue”,A1:B2) – This formula finds the maximum value of “Revenue” in the range A1:F50, where “Region” is either “North” or “South”.
- =DMAX(A1:F50,3,A1:B2) – This formula finds the maximum value in the third column of the range A1:F50, where “Region” is either “North” or “South”.
- =DMAX(A1:F50,”Sales”,A1:E5) – This formula finds the maximum value of “Sales” in the range A1:F50, where the criteria for “Region” and “Product” are contained in the range A1:E5.
- =DMAX(A1:F50,”Sales”,A1:F50) – This formula finds the maximum value of “Sales” in the entire range A1:F50.
- =DMAX(Table1[#All],”Sales”,Table1[[Region]:[Product]]) – This formula finds the maximum value of “Sales” in the table “Table1”, where the criteria for “Region” and “Product” are contained within those columns.
- =DMAX(A1:F50,”Sales”,”Region:North”) – This formula finds the maximum value of “Sales” in the range A1:F50, where “Region” equals “North”.
- =DMAX(A1:F50,”Sales”,”Product:Apples”) – This formula finds the maximum value of “Sales” in the range A1:F50, where “Product” equals “Apples”.
- =DMAX(A1:F50,”Sales”,”Region:North”,”Product:Apples”) – This formula finds the maximum value of “Sales” in the range A1:F50, where “Region” equals “North” and “Product” equals “Apples”.
- =DMAX(A1:F50,”Sales”,A1:B2,A1:E5) – This formula finds the maximum value of “Sales” in the range A1:F50, where the criteria for “Region” and “Product” are contained in A1:B2, and the criteria for “Date” is contained within A1:E5.

## How do you use the DMAX function in Excel?

The DMAX function is used to find the maximum value in a column or range of columns that meet certain criteria. The syntax for the DMAX function is as follows:

=DMAX(database, field, criteria)

- Database: This is the range of cells that contains the data you want to search. It must include headers that identify the fields or columns of data to be searched.
- Field: This is the name or reference to the column or field you want to search for the maximum value.
- Criteria: This is an optional range of cells that specifies the criteria you want to apply when searching the database.

Here’s an example of how to use the DMAX function:

Suppose you have a table of sales data that includes columns for “Region”, “Product”, “Sales”, and “Date”. You want to find the maximum value of sales for the “North” region. Here’s how you would use the DMAX function:

- Select a cell where you want to display the result.
- Enter the following formula: =DMAX(A1:D100,”Sales”,”Region:North”)
- Press Enter.

This will return the maximum value of “Sales” in the range A1:D100, where “Region” equals “North”.

You can also use the DMAX function with multiple criteria. For example, suppose you want to find the maximum value of sales for the “North” region and the “Apples” product. Here’s how you would modify the formula:

=DMAX(A1:D100,”Sales”,”Region:North”,”Product:Apples”)

This will return the maximum value of “Sales” in the range A1:D100, where “Region” equals “North” and “Product” equals “Apples”.

## What are the arguments of the DMAX function?

The DMAX function has three arguments: database, field, and criteria. Here’s a more detailed explanation of each argument:

- Database: The first argument of the DMAX function is the range of cells that contains the data you want to search. It must include headers that identify the fields or columns of data to be searched. The syntax for this argument is as follows:

=DMAX(database, …

For example, if you have a table with sales data in columns A through D, including headers, your database argument might look like this:

=DMAX(A1:D100, …

- Field: The second argument of the DMAX function is the name or reference to the column or field you want to search for the maximum value. This argument can be either a text string or a cell reference that contains the field name. The syntax for this argument is as follows:

=DMAX(database, field, …

For example, if you want to find the maximum sales value in the “Sales” column of your data set, your field argument might look like this:

=DMAX(A1:D100, “Sales”, …

Alternatively, you could reference a cell that contains the field name, like this:

=DMAX(A1:D100, F1, …

In this case, cell F1 would contain the text “Sales”.

- Criteria: The third argument of the DMAX function is an optional range of cells that specifies the criteria you want to apply when searching the database. This argument is used to filter the data so that only records that meet certain criteria are included in the calculation of the maximum value. The syntax for this argument is as follows:

=DMAX(database, field, criteria)

For example, if you wanted to find the maximum sales value in the “Sales” column for the “North” region, your criteria argument might look like this:

=DMAX(A1:D100, “Sales”, A1:B2)

In this case, the range A1:B2 would contain the criteria for “Region” equals “North”.

## What is the purpose of the database range argument in the DMAX function?

The “database” range argument in the DMAX function is used to identify the range of cells that contains the data you want to search for the maximum value. This range must include headers that identify the fields or columns of data to be searched.

The purpose of the database range argument is to tell Excel where to look for the data that you want to use in your DMAX calculation. The syntax for this argument is as follows:

=DMAX(database, field, criteria)

Here’s an example of how to use the database range argument in the DMAX function:

Suppose you have a table of sales data with columns for “Region”, “Product”, and “Sales”. You want to find the maximum sales value for the “North” region. Here’s how you would use the DMAX function:

- Select a cell where you want to display the result.
- Enter the following formula: =DMAX(A1:C100,”Sales”,”Region:North”)
- Press Enter.

In this example, the “database” range argument is A1:C100, which tells Excel to search for the data in columns A through C, including the header row. The “field” argument is “Sales”, which specifies that we want to find the maximum sales value. The “criteria” argument is “Region:North”, which filters the data to only include records where the “Region” column equals “North”.

## How does the criteria range work in the DMAX function?

In the DMAX function, the “criteria” range is an optional argument that allows you to filter the data according to certain conditions or criteria before calculating the maximum value. This argument is used to specify one or more criteria that must be met for a cell to be included in the calculation of the maximum value.

The syntax for the DMAX function with the criteria argument is as follows:

=DMAX(database, field, criteria)

Here’s an example of how to use the criteria range argument in the DMAX function:

Suppose you have a table of sales data with columns for “Region”, “Product”, “Sales”, and “Date”. You want to find the maximum sales value for the “North” region, but only if the sale occurred after January 1, 2022. Here’s how you would use the DMAX function with the criteria argument:

- Select a cell where you want to display the result.
- Enter the following formula: =DMAX(A1:D100,”Sales”,D1:D2)
- Press Enter.

In this example, the “criteria” range argument is D1:D2, which specifies that we want to filter the data to include only records where the “Region” column equals “North” and the “Date” column is greater than or equal to January 1, 2022.

The first row in the criteria range should contain the column headers for the fields you want to filter on (i.e., “Region” and “Date”). The second row should contain the criteria values you want to apply (i.e., “North” and the date corresponding to January 1, 2022).

By using the criteria range argument, you can filter the data to include only the records that meet specific conditions before calculating the maximum value. This makes it easy to perform complex calculations on large sets of data, and allows you to quickly identify the highest values that meet certain criteria.

## Can the DMAX function be used with non-numeric data?

The DMAX function in Excel is designed to work with numeric data, and cannot be used directly with non-numeric data. This is because the function is specifically designed to find the maximum value within a range of cells, which only makes sense for numerical values.

However, it is possible to use the DMAX function with non-numeric data by converting the data to numbers first. For example, you could assign a numerical value to each non-numeric option in your data set, and then use the DMAX function to search for the maximum value based on those numerical values.

Here’s an example of how to use the DMAX function with non-numeric data:

Suppose you have a table of sales data with columns for “Product”, “Region”, and “Sales”. You want to find the maximum sales value for the “North” region, but “Region” is a non-numeric field. Here’s how you could convert the non-numeric values to numbers and use the DMAX function:

- Create a lookup table that assigns a numerical value to each non-numeric option in your “Region” column. For example, you could assign a value of 1 to “North”, 2 to “South”, 3 to “East”, and 4 to “West”.
- Add a new column to your sales data table that contains the numerical values corresponding to each “Region”. You can use the VLOOKUP function to do this automatically. The formula might look like this: =VLOOKUP(B2,lookup_table,2,FALSE)
- Use the DMAX function to find the maximum sales value for the “North” region based on the numerical values in the new column. Your formula might look like this: =DMAX(A1:C100,”Sales”,A1:D2)

In this example, the “criteria” range argument is A1:D2, which specifies that we want to filter the data to include only records where the “Region” column equals 1 (i.e., “North”, based on our lookup table).

By converting non-numeric data to numerical values and using the DMAX function, you can still perform calculations on your data set even if some of the fields contain non-numeric values. However, it is important to note that this approach should be used with caution, as it can sometimes lead to incorrect results if the numerical values do not accurately represent your non-numeric data.

## How do you specify multiple criteria in the DMAX function?

The DMAX function can be used with multiple criteria to find the maximum value based on several conditions. To use multiple criteria, you simply need to include additional ranges in the “criteria” argument that correspond to each condition you want to apply.

The syntax for the DMAX function with multiple criteria is as follows:

=DMAX(database, field, criteria1, criteria2, …)

Here’s an example of how to use the DMAX function with multiple criteria:

Suppose you have a table of sales data with columns for “Region”, “Product”, “Sales”, and “Date”. You want to find the maximum sales value for the “North” region and the “Apples” product, but only if the sale occurred after January 1, 2022. Here’s how you would use the DMAX function with multiple criteria:

- Select a cell where you want to display the result.
- Enter the following formula: =DMAX(A1:D100,”Sales”,A1:B2,D1:E2)
- Press Enter.

In this example, the “criteria1” range argument is A1:B2, which specifies that we want to filter the data to include only records where the “Region” column equals “North” and the “Product” column equals “Apples”.

The “criteria2” range argument is D1:E2, which filters the data to only include records where the “Date” column is greater than or equal to January 1, 2022.

By including both sets of criteria in the DMAX function, we can find the maximum sales value that meets all of our conditions.

It’s important to note that when using multiple criteria in the DMAX function, the criteria ranges should be adjacent to each other and should contain both column headers and criteria values. The column headers should be included in the first row, and the criteria values should be included in the second row.

## What happens if no records match the criteria in the DMAX function?

If there are no records that match the criteria specified in the DMAX function, the function will return the #NUM! error value. This error occurs because there is no maximum value to calculate when there are no matching records.

Here’s an example of how the #NUM! error can occur in the DMAX function:

Suppose you have a table of sales data with columns for “Region”, “Product”, and “Sales”. You want to find the maximum sales value for the “North” region, but there are no records in your data set where “Region” equals “North”. Here’s how the DMAX function would return the #NUM! error:

- Select a cell where you want to display the result.
- Enter the following formula: =DMAX(A1:C100,”Sales”,”Region:North”)
- Press Enter.

In this example, the #NUM! error occurs because there are no records that meet the condition “Region equals North”. Since there are no values to calculate the maximum from, the function returns the #NUM! error.

To avoid the #NUM! error, you can modify your criteria to ensure that at least one record will match. Alternatively, you can use an IFERROR formula to replace the error value with a more meaningful message or value. Here’s an example of how to use the IFERROR formula with the DMAX function:

- Select a cell where you want to display the result.
- Enter the following formula: =IFERROR(DMAX(A1:C100,”Sales”,”Region:North”),”No matching records”)
- Press Enter.

In this example, the IFERROR formula will replace the #NUM! error with the message “No matching records”. This makes it easier for users to understand why the calculation failed, and provides more helpful feedback than the default Excel error message.

## How can you use the DMAX function to find the maximum value based on a date range?

The DMAX function can be used to find the maximum value within a range of dates by using a date criteria. You can specify the date range directly in the “criteria” argument of the DMAX function.

Here’s an example of how to use the DMAX function to find the maximum value based on a date range:

Suppose you have a table of sales data with columns for “Region”, “Product”, “Sales”, and “Date”. You want to find the maximum sales value for the month of January 2022. Here’s how you would use the DMAX function with a date criteria:

- Select a cell where you want to display the result.
- Enter the following formula: =DMAX(A1:D100,”Sales”,”Date>=1/1/2022″,”Date<=1/31/2022″)
- Press Enter.

In this example, the “criteria” argument of the DMAX function specifies that we want to filter the data to only include records where the “Date” column is greater than or equal to January 1, 2022, and less than or equal to January 31, 2022.

By specifying the date range in the “criteria” argument, we can find the maximum sales value for the month of January 2022.

It’s important to note that when using a date criteria in the DMAX function, you should format your criteria as a date in Excel. This means that you should enclose your date values in quotation marks, and format them according to your regional settings. For example, if your regional date format is “dd/mm/yyyy”, your date criteria might look like this:

=DMAX(A1:D100,”Sales”,”Date>=01/01/2022″,”Date<=31/01/2022″)

Overall, using the DMAX function to find the maximum value based on a date range is a powerful way to analyze your data and identify trends over time.

## Are there any limitations or caveats to using the DMAX function in Excel?

Yes, there are some limitations and caveats to be aware of when using the DMAX function in Excel. Here are a few key considerations:

- The “database” range must include headers: When using the DMAX function, the “database” range argument must include the header row that identifies each field or column of data. If your database does not include headers, you may encounter errors or incorrect results.
- The function only returns one value: The DMAX function is designed to find the maximum value within a range of cells, and will return only one value. If there are multiple cells containing the maximum value, the function will return the first cell it encounters.
- Criteria ranges must be adjacent: When using the criteria range argument in the DMAX function, all criteria ranges must be adjacent to each other, and contain both column headers and criteria values.
- The function only works with numeric data: As mentioned earlier, the DMAX function is designed to work with numeric data only. If you need to find the maximum value based on non-numeric data, you will need to convert the data to numerical values first.
- The function does not automatically update: Like many Excel functions, the DMAX function does not automatically update when new data is added to your database. You will need to manually refresh the function or use dynamic named ranges to ensure that your calculations are up-to-date.

In addition to these considerations, it’s important to note that the DMAX function may be less efficient than other methods for analyzing large sets of data. If you have extremely large databases or complex criteria, you may want to explore other options for managing and analyzing your data.