using perc with variable percentile value

[dadi]

hi guys,
I want to use eventstats->perc function. This function is form perc*10(x) in order to get the 10 percentile value. I want that the 10 int perc10* will be a variable, meaning that the same function could be used to calculate different percentile values.
Is it possible?

example:
| eval percVal=10
| eventstats perc(count) as topPrecentBar
how to make the above statement to work?

Thanks.

[jensihnow]

I think thats not possible... but I am not a Splunk Ninja.