EMA question

[Joe Average]

I have this script I'm trying to run - the first line works OK. But the second line won't process right. Is it the .bars on the EMA ?

Slopeup is a varible

// Condition set 1
if ( (High[0] >= (Bollinger(2, 14).Upper[0] + (1 * TickSize )))
&& (EMA(12).Bars[0] <= EMA(12).Bars[1] + (Slopeup * TickSize))
&& ((ToTime(Time[0]) >= 83000) && (ToTime(Time[0]) <= 150000 )))
{
EnterShort(DefaultQuantity, "Short-One");
}

[NinjaTrader_Matthew]

What are you trying to check with .Bars? Are you trying to look at an added array?

Or are you just looking at a single series script and trying to get previous EMA values?

[Joe Average]

EMA question

Well, I really just want to check the curent bars EMA value with the same EMA value say, one or two bars ago. To get an idea of the slope of the EMA line the idea being if its trending you don't want to trade against it.

[NinjaTrader_ChelseaB]

Hello,

Thanks for your note.

You can access the EMA for a particular bar without using the .Bars.

For example:

if (EMA(12)[0] > EMA(12)[1])

will check that the EMA of the current bar is higher than the EMA of 1 bar ago.


Please let me know if this does not resolve your inquiry.

[Joe Average]

EMA question

OK, but I want to know by how much.
So, I want to:
if( EMA(12)[0] - EMA(12)[1] )

but that doesn't seem to process correctly.

[sledge]

OK, but I want to know by how much.
So, I want to:
if( EMA(12)[0] - EMA(12)[1] )

but that doesn't seem to process correctly.

Open the output window, and use the Print command before your if statement to see what is going on.

Print ( "ema12[0]=" + EMA(12)[0] );
Print ( "ema12[1]=" + EMA(12)[1]);
Print ( "Difference=" + ( EMA(12)[0] - EMA(12)[1]) );

[koganam]

OK, but I want to know by how much.
So, I want to:
if( EMA(12)[0] - EMA(12)[1] )

but that doesn't seem to process correctly.

That is because the statement means nothing that can be processed. Say what you are trying to say in words, and someone will show you how to write it. "if the 12 period EMA on this bar minus the 12 period EMA on the previous bar" is not an actionable statement. That is the entirety of what your statement says.