multiple color indicator help

[safetrading]

Can anyone tell my why the following will not work? I'm just trying to figure out how to set up a histogram with one color for a descending line and another color for an ascending line. It will eventually be a formula, but just to get things started.

The way I did it below, it only draws the second plot, and it omits the first plot;

privatedouble LongSum = 0;
privatedouble ShortSum = 0;

protectedoverridevoid OnBarUpdate()
{
if(CurrentBar < 21)return;
LongSum = SMA(8)[0];
ShortSum = SMA(13)[0];
if(LongSum > ShortSum)
{
Plot1.Set(LongSum-ShortSum);
}
else
{
Plot0.Set(LongSum-ShortSum);
}
}

[NinjaTrader_Ben]

Hello,

In this post I am assuming the 'one plot' is correct and the other plot is correct if it were plotting at all.

Your issue is probably in adding the plots. For an example on how it works look at the code of an existing indicator with two plots or build a two plot indicator in the Strategy Wizard and look at that code.