Grouping based on input parameters

I'm not even sure if this is possible. Our requirement is that the user can input whether to view hourly, daily, or monthly data. Originally I had created three separate reports, but I've been asked to try again.

Is it possible to specify when grouping to group by the whole operation date, or group by days, or group by weeks?

Thanks.Its possible if the grouping is done in logical way say days->weeks->months->years.
Trying to say that if you want to group by Monday or tuesday then the answer is no.
Now what you do is in one report you start from inside grouping by days, then by weeks, then by months and then by years.
Make a parameter through which you can suppress the section accordingly.
Hope you can understand my theory.|||Thank you for your explanation. That was a lot easier than I thought!

:)|||I've been re-doing one of my other reports and noticed that my solution still has one problem with it. I have grouped by (from outer level) : Year, Month, Product Type.

When I view the product type by month, all are listed as one would expect. However, when viewing by year they are not grouped correctly, ie :

Jan 2005
prod x - 5
prod y - 3
prod z - 4

Feb 2005
prod x - 1
prod y - 7

So when viewing by year, I would like to see Prod x - 6. Instead, I get the two individual listings of prod x, etc.

Is there a way around this?

Thanks.|||You should expect only one entry per year if you have done gouping by year->month->type.
Right click on Group Producttype and click on change group and make sure that Order is in ascending and not Original order.

B.thakkar|||Thanks, though everything is grouped with order ascending. I think the problem is that they are essentially still grouped by month (we just choose not to acknowledge/display this by suppressing the header).