Variable to Define Amount of Data for Measure

[cbruhn42]

I have a couple of measures that calculate the average of my entire data set along with the standard deviation of the entire data set.

I'd like to give my users the option to define how many data points are used to calculate those two statistics.  For example, if they wanted to see what the stats were for the last 50 data points they'd be able to use a slicer to define this.

Any ideas how to do this?

[cbruhn42]

I'd like to be able to say, use the last 50 data points to calculate the stats.

[ray_aramburo]

If data points are date based: use a relative date slicer visual and enable the option for Last N Months/Weeks/Days, etc.

It's really useful as the user can submit the N input and change the period.