Using DAX to filter

[PBCIT]

Ok so I feel like I am missing something. I have a table that I use to get 3 or four other tables on the same axis in visuals (column charts, etc.). The table only has 2 columns and looks like this:

Depending on what "track" a person is on, we calculate stats for a different number of weeks. For instance, if a person is on track 1, they will have 9 weeks that we need to track. If a person is on track 2, they will have 8 weeks we need to track. If a person is on track 3, they will have 5 weeks we need to track. I have what I call a Program table that defines what the program is and how many weeks that program needs to be tracked for:

and then the program code is placed in a column for the particular individual in a different table that has information on the individual. My question is. How can I get a column chart to show only the number of weeks that the person is being tracked for? For instance, how can I get it to where, if the person is on Track 2, it will only show 8 in the axis?  I have tried to use a couple of different DAX formula measures, but nothing has really panned out. Any ideas?

[Anonymous]

// Assuming that Weeks table is disconnected.
// Create an auxiliary measure
// that will return for each Week #
// 1 if it should be shown and
// 0/BLANK if it shouldn't. Then, filter
// the visual by this measure's value
// = 1.

[Show Week #] =
var __maxNumOfWeeksVisible =
	MAX( Program[# Weeks] )
var __result =
	SELECTEDVALUE(
		// this must start with 1
		// and go up continuously
		// up to the number of weeks
		// in the table
		Weeks[ID],
		// this in case many weeks visible
		1000 
	) <= __maxNumOfWeeksVisible
return
  1 * __result
	
// Bear in mind that if many people are
// selected, then the number of weeks
// visible will be the maximum number
// of weeks among all the people and
// their programs.