Here is how I would do that... Add an extra column to the right of the data
and call it week. Add the formula =WeekNum(A2) assuming that your dates are
in column A with a header in row 1.
Select Data -> Pivot Table -> follow the wizard.
Place the persons name and Week in the left column and names to the data
section to get a count of the names. For this source data
Date Person Week
1-Jan Tom 1
2-Jan Dave 1
3-Jan Tom 1
4-Jan Dave 2
5-Jan Tom 2
6-Jan Dave 2
7-Jan Tom 2
8-Jan Dave 2
9-Jan Tom 2
10-Jan Dave 2
11-Jan Tom 3
12-Jan Dave 3
13-Jan Tom 3
14-Jan Dave 3
15-Jan Tom 3
16-Jan Dave 3
17-Jan Tom 3
18-Jan Dave 4
19-Jan Tom 4
I got...
Count of Person
Person Week Total
Dave 1 1
2 4
3 3
4 1
Dave Total 9
Tom 1 2
2 3
3 4
4 1
Tom Total 10
Grand Total 19
Here is how I would do that... Add an extra column to the right of the data
and call it week. Add the formula =WeekNum(A2) assuming that your dates are
in column A with a header in row 1.
Select Data -> Pivot Table -> follow the wizard.
Place the persons name and Week in the left column and names to the data
section to get a count of the names. For this source data
Date Person Week
1-Jan Tom 1
2-Jan Dave 1
3-Jan Tom 1
4-Jan Dave 2
5-Jan Tom 2
6-Jan Dave 2
7-Jan Tom 2
8-Jan Dave 2
9-Jan Tom 2
10-Jan Dave 2
11-Jan Tom 3
12-Jan Dave 3
13-Jan Tom 3
14-Jan Dave 3
15-Jan Tom 3
16-Jan Dave 3
17-Jan Tom 3
18-Jan Dave 4
19-Jan Tom 4
I got...
Count of Person
Person Week Total
Dave 1 1
2 4
3 3
4 1
Dave Total 9
Tom 1 2
2 3
3 4
4 1
Tom Total 10
Grand Total 19