# Microsoft Excel - From Beginner to Expert in 6 Hours/ EXCEL DASHBOARD REPORTS

## Excel: Time Stratification

### Time Stratification

This useful tool stratifies a database, by adding one more column to the database being analysed.  To use this tool you need at least one date-type field in your database, then you have to choose the type of stratification (yearly, monthly, etc..)

The next example shows a yearly criterion:

The result is shown below:

If you wish you check the pivot table checkbox and a pivot table of your results will be created.

You will note that the dialog enlarges and provides us with the option to choose the field to be analyzed and the mathematical operation to be done.

Notice that the Year option has been added, because we chose a yearly stratification.

In addition, this tool has the option of stratifying a table with a more sophisticated criterion, * By number of days elapsed.

This option works as follows:

• Choose the date-type field to be evaluated

• Enter the Starting date in the dialog.

• Enter the category table. This is a table containing a number of intervals (in elapsed day) which will be evaluated and results will be added to the corresponding category in the database.

• For example: if the Starting date entered in the dialog is 1/9/1999 and the first record to be evaluated is 1/2/2003, the number of days elapsed between those two dates is calculated to be greater than 1000 days, so this record would be allocated to the Hard problem category.

Let's see the example:

The result is the following:

If applicable, the corresponding pivot table would have been created. You may modify the table created by dragging and dropping the appropriate fields.

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# Microsoft Excel - From Beginner to Expert in 6 Hours/ EXCEL DASHBOARD REPORTS

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