Trying to break out by week instead of dates with in the week

Question

<p>I have issues that are catagorized by severity.  What i need to do is this.  I need to understand the mean time between issues.  My formula for that works perfect for doing that.  It&#39;s grouped by create date of weekly.  the group name in this case is the group 2 level.</p><p>If  GroupName ({SPRT_Issue.Internal_Severity}) > ""<br />Then<br />ToText<br />(<br />(<br />Maximum ({SPRT_Issue.Create_Date}, {SPRT_Issue.Internal_Severity})<br />- <br />Minimum ({SPRT_Issue.Create_Date}, {SPRT_Issue.Internal_Severity})<br />)<br />*24<br />/Count ({SPRT_Issue.Create_Date}, {SPRT_Issue.Internal_Severity})<br />)<br />Else<br />"N/A"</p><p>&#160;</p><p>I really need to do is instead of saying give me the first "create date of the issue" (meaning if the first issue occurs on thrusday of that week then start the clock)  I really need it to say for the whole week period, no matter when the first issue actually happens, give me the mean time between issue.  It&#39;s slight distinction between mean time between actiual issues and mean time between issue in a given block of time - in this case weekly.</p><p>I tried putting in "weekly" on the date field but either I&#39;m missing a paren somewhere or it gives me error about needing to be a number and so on.  I know it&#39;s something simple but I just can&#39;t see it right now. </p><p>thanks</p><p>&#160;</p><p>&#160;</p>

Answer 1

Okay - let's see if I can frame this correcty. My report - simulated view
(group - Issue.Create_Date     < - grouped as weekly)
1/1/2006
1/7/2206
 Issue.Issue_Severity  Issue.Create_Date    Mean time (calculated field).
Right now that's the simplest form of the report. In my calculation the max/min of Issue.Create_Date with in the "week" does not start until the first issue hits which may be 12 hours in on Sunday of that week or it may be 3Pm on Tuesday so I end up with only mean time between issue once the issue start flowing in. I'd like to know, accross the whole 7X24 - 168hours - what is the mean time between issues broken out by severity. You can refer to the calculation I have listed above. i just can't seem to figur out that weekly block verses the start-stop first to last issue. It's kind of like know the mean time within a static defined block of time verses a dynamic time range.
Thanks - I know this is goofy but it is what it is.