Problem with prices

[ManosFM]

Hello,
I have the code below:

if(High[0]>High[1] && Low[0]>=Low[1])
{
plusDm=Close[0] - Close[1];
}
else if(High[0]>High[1] && Low[0]<Low[1] &&
(High[0]-High[1]) > (Low[1]-Low[0]))
{
plusDm=Close[0] - Close[1];
}
else
{
plusDm=0.0;
}

Plot.Set(plusDm);

This is not working and general i can't work with prices.
Another example that doesn't return anything:

Plot.Set(High[10]-Low[10])

Thank you.

[NinjaTrader_Bertrand]

Welcome to our forums - is there any log error noted in the Control Center's rightmost tab when you apply this study?

You likely run into this item here - http://www.ninjatrader.com/support/f...ead.php?t=3170