I am trying to get an accurate number of days for uptime within my
observation range. For example, if my range is 7/1/06 - 7/31/06, I have an
observation of 30 days. My dates for the various equipment I am looking at
are for downtime. The data is in the following format. For the date range
above I only want to take into account the number of days after the last date
cleaned. Therefore, there would be 10 days of data to use 7/21 - 7/31.
Similarly if I changed my dates to 10/1 - 10/31/06 I want to ommit 10/1 -
10/5. The tricky part comes in when I want to look at 7/1/06 - 10/31/06. Here
I would only drop out dates prior to 7/21.

Date Cleaned
7/21/06
10/3/06
10/4/06
10/5/06
12/4/06
12/5/06

I don't know if this is even possible, but any suggestions would greatly
appreciated.