setPriceBarColor of preceding bar

[TradeFive]

Is it possible to set the colour of a preceding bar i.e. I do not want any comparison with current bar? Ignoring incorrect coding protocol, as per simplistic example below:

IF High(-1) > High(-2) THEN setPriceBarColor(-1) = Pink

As this is for backtesting, I'm not interested in current bar.

Thanks for any assistance

[SteveH]

You can only set the current bar color.