value1 question

["N&M Smith" <nmsmith@xxxxxxxxx>]

With this simple plot statement I understand what's going on.
Plot1(byprice,"bp");

However when I see the same code written with a counter,
For Value1 = 10 downto 0 begin
Plot1[value1](byprice,"bp");

I'm having trouble understanding what the [value1] is doing, it appears to
still be plotting the byprice and the inclusion of the value1 appears to
displace the indicator, Why I don't know.

If anyone can shed some light on what the process is I'd appreciate it.
Thanks
Neville