Rolling Chart 2 Previous and 2 Forward Dates on Chart

[#1]

I am trying to figure out if I select the date 3-11/2011 how to show a line chart that has the two dates before the date selection and two dates after the selection.

Date	Sales
1 - 9/2010	100
2 - 10/2010	150
3 - 11/2010	124
4 - 12/2010	105
12 - 8/2010	85
1 - 9/2011	90
2 - 10/2011	145
3 - 11/2011	132
4 - 12/2011	128
5 - 1/2011	150
6 - 2/2011	124
7 - 3/2011	105
8 - 4/2011	85
9 - 5/2011	90
10 - 6/2011	145
11 - 7/2011	132
12 - 8/2011	128

[Anonymous · Accepted solution]

hi

i post u an exemple

[#3]

Thank you very much.