A little programming help plz

August 28th, 2010, 06:42 AM

I'm trying to create a VWAP Oscillator in NT7 and thought I'd use the NT indicator Volume Oscillator as a template.
The Volume Oscillator code looks like this:

{
Value.Set(SMA(Volume, Fast)[0] - SMA(Volume, Slow)[0]);
}

I need to have my indicator calculate:

((Current Price) - (VWAP plot of VWAP indicator)) / (("SD1 Upper" plot of VWAP indicator) - (VWAP plot of VWAP indicator))

Which I thought would be:

{
Value.Set (((Close[0]) - (VWAP.WVAP[0])) / ((VWAP.SD1 Upper[0]) - (VWAP.VWAP[0])));
}

But I get a bunch of errors like ) expected and statement expected. Can anyone see where I went wrong? Would the "SD1 Upper" plot of VWAP indicator be VWAP.SD1 Upper[0]?

I'm obviously no programming savant and would appreciate all help on this,

Mpe

August 28th, 2010, 07:33 AM

Ther is no space in the name of the DataSeries - it should be:
SD1Upper (no space)

August 28th, 2010, 08:37 AM

gregid

Ther is no space in the name of the DataSeries - it should be:
SD1Upper (no space)

Thanks, that fixed the errors. But I get new ones when I try to compile, "NinjaTrader.Indicator.Indicator.VWAP() is a method which is not valid in the given context."

Any thoughts one this one?

August 28th, 2010, 08:49 AM

Posting original VWAP indicator might help.

For now: are you sure there is a dataseries like VWAP in the original indicator? The indicator I've seen has VWAPLine as the name of the main plot. Try replacing VWAP[0] with VWAPLine[0]

August 28th, 2010, 08:55 AM

mpe66

I'm trying to create a VWAP Oscillator in NT7 and thought I'd use the NT indicator Volume Oscillator as a template.
The Volume Oscillator code looks like this:

{
Value.Set(SMA(Volume, Fast)[0] - SMA(Volume, Slow)[0]);
}

I need to have my indicator calculate:

((Current Price) - (VWAP plot of VWAP indicator)) / (("SD1 Upper" plot of VWAP indicator) - (VWAP plot of VWAP indicator))

Which I thought would be:

{
Value.Set (((Close[0]) - (VWAP.WVAP[0])) / ((VWAP.SD1 Upper[0]) - (VWAP.VWAP[0])));
}

But I get a bunch of errors like ) expected and statement expected. Can anyone see where I went wrong? Would the "SD1 Upper" plot of VWAP indicator be VWAP.SD1 Upper[0]?

I'm obviously no programming savant and would appreciate all help on this,

Mpe

I don't have the VWAP indicator, so it's a little difficult to tell for sure. Some possibilities:

{
Value.Set (((Close[0]) - (VWAP.WVAP[0])) / ((VWAP.SD1 Upper[0]) - (VWAP.VWAP[0])));
}

Most indicators require parameters. Are you sure you aren't supposed to pass some parameters to the indicator? (ie. VWAP(Period).VWAP[0])

August 28th, 2010, 08:57 AM

hi,

Current Price= Close[0]

VWAP plot of VWAP indicator = VWAP().VWAPLine[0]

SD1 Upper" plot of VWAP indicator = VWAP().SD1Upper[0]

SD1 Lower" plot of VWAP indicator = VWAP().SD1Lower[0]

etc...

August 28th, 2010, 09:04 AM

I'm using the indicator from post 258 in this thread on the NT forum. I'm pretty sure the name of the plot is just VWAP or at least that's what it's called in the indicator settings. As for parameters there are couple. Start time, end time, Accuracy warning (true/false), Std Dev calc mode ( VWAP/VWAPavg) etc. Would I need to insert all that in my script?

August 28th, 2010, 09:13 AM

mpe66

I'm using the indicator from post 258 in this thread on the NT forum. I'm pretty sure the name of the plot is just VWAP or at least that's what it's called in the indicator settings. As for parameters there are couple. Start time, end time, Accuracy warning (true/false), Std Dev calc mode ( VWAP/VWAPavg) etc. Would I need to insert all that in my script?

Yes. It should look something like this:

VWAP(startTime,endTime,true.... )[0]

or

VWAP(startTime,endTime,true.... ).SD1Upper[0]

August 28th, 2010, 09:21 AM

MooreTech

Yes. It should look something like this:

VWAP(startTime,endTime,true.... )[0]

or

VWAP(startTime,endTime,true.... ).SD1Upper[0]

Ok I tried inputting all the settings and got:

Value.Set (((Close[0]) - (VWAP(00:00:00, 00:00:00, False, True, VWAP,1).VWAP[0])) / ((VWAP(00:00:00, 00:00:00, False, True, VWAP,1).SD1Upper[0]) - (VWAP(00:00:00, 00:00:00, False, True, VWAP,1).VWAP[0])));

But get a bunch of errors. It doesn't seem to like ":" and expects a bunch of ";".

A little programming help plz

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A little programming help plz