Less than in MDX Query Designer

Question

I have a month year parameter like March, 2014. I want to calculate actual for current year and Prior year.
I have time intelligence build in the cube which will give me Prior year.
When user select March,2014, I will show data in line chart with 2 series like current year and prior year.
Current year data will be from Jan 2014 to march 2014 as user select march (not current month which is August,2014).
But in Prior year series, I need to show data from jan 2013 to Dec 2013.
I have a dataset right now which gives me current year and prior year full data. I have used ancestor function to get the full year data. How how I restrict data in chart to cut off at Mar 2014 and not show data till Dec 2014.

Answer 1

Hi!
Based on your question I assume you expect a result similar to this:
If your entry parameter is month than and you have Year-Month-Date hierarchy in your cube you could do the following:
select cnt on 0,
[Date].[Y-M-D].[Year].members
on 1 from
select {[Date].[Y-M-D].[Month].&[14]&[2].parent.prevmember.firstchild:
[Date].[Y-M-D].[Month].&[14]&[2]}
on 0 from YOURCUBE)
This query uses subselect to limit the cube space to date range starting at first month of previous year(firstchild) and ending at your entry date (in my case February 2014)
So lets explain starting point expression for date range:
[Date].[Y-M-D].[Month].&[14]&[2].parent.prevmember.firstchild
[Date].[Y-M-D].[Month].&[14]&[2] - is your entry parameter 
[Date].[Y-M-D].[Month].&[14]&[2].parent - sets position to [Date].[Y-M-D].[Year].&[2014] (assuming that the direct parent of Month level is Year level. If this is not the case you could use "ancestor" function).
[Date].[Y-M-D].[Month].&[14]&[2].parent.prevmember -  sets the position to [Date].[Y-M-D].[Year].&[2013]
[Date].[Y-M-D].[Month].&[14]&[2].parent.prevmember.firstchild   sets the position to January 2013
This gives you date range starting from January 2013 and ending at February 2014.
HTH
Ivan Roguljić