TSV: Time segmented volume formula conversion

[skynetman]

Guys i met this indicator from TC2000 and it seems worth a try as it uses volume and price, like OBV, but seems more reliable.

I found two version of the formula and i paste them both (don't know what language they are... choose the one easier)

Sum(If(C,>,Ref(C,-1),+V*C-Ref(C,-1),If(C,<,Ref(C,-1),-V*C - Ref(C,-1),0)),18)
{with a moving average of 9}

another version:

TSV=(Sum( IIf( C > Ref(C,-1), V * ( C-Ref(C,-1) ), IIf( C < Ref(C,-1),-V * ( C-Ref(C,-1) ), 0 ) ) ,18));

Plot(TSV,"TSV",1,1);

Thx...

[NinjaTrader_JoshP]

Hi skynetman,

Perhaps a community member can help you out. As a last resort you can also try one of the 3rd party NinjaScript Consultants here: http://www.ninjatrader.com/webnew/pa...injaScript.htm

[skynetman]

If we use simple variables (not working) the pseudo code should be:

if (Close[0] > Close[1])
    tmp= Volume[0]*(Close[0]-Close[1]);
else if (Close[0] < Close[1])
    tmp=(-1)*Volume[0]*(Close[0]-Close[1]);
else tmp=0;

TSV = Sum (i don't know,18);

The problem is that i do not understand when to use vectors or not...
AFL language reference says that Sum (array, int) gives the sum of the previous int elements of the arraty as in NT.

But i do not understand how C, Ref(C,-1) can create an array...
Do i have to use something like

for (int i=0, i<18, i++)  tmp[i]= Volume[i]*(Math.Abs(Close[i] - Close[i-1]));
Value.Set (sum(tmp,18));

thx...

[NinjaTrader_JoshP]

Unfortunately, skynetman, we are not experts in AFL language and are unqualified in helping with the conversion.

[twtrader]

Hi Skynetman,

I took a look at your formula and came up with this. Is this similar to what you have ?

[skynetman]

twtrader could you please past the whole code?
I can't make it run.....

Thx a lot!

[anachronist]

It looks to me like it's a complicated way of expressing one of Wilder's indicators, a moving average (or sum) of volume * movement.

(Variables)
private DataSeries TSV;

(Initialize)
TSV = new DataSeries(this);

(OnBarUpdate)
TSV.Set(Volume[0] * Math.Abs(Close[0] - Close[1]));
MyIndicator.Set(SUM(TSV, 18)[0]);

-Alex

[skynetman]

Thx Alex!
P.S.: To help the other noobs around, to make it compile i think the right one is

MyIndicator.Set(SUM(TSV, 18)[0]);

@twtrader: same code as yours?

[anachronist]

Thx Alex!
P.S.: To help the other noobs around, to make it compile i think the right one is

MyIndicator.Set(SUM(TSV, 18)[0]);

Whoops, you're right. I corrected the code in my message. Thanks. -Alex

[stevewar]

TSV is a line chart

I don't think this formula is correct, as TSV is a line chart and is usually cominbed with ROC.

[stevewar]

Noob Error - Figured it out

The code was throwing an exception. I figured out how to get the debugger working and found out that the code wasn't handling the case where CurrentBar = 0, and in that case Close[1] was invalid...

Here's the fix:
if (CurrentBar == 0)
{
TSV.Set(0);
}
else
{
TSV.Set(Volume[0] * Math.Abs(Close[0] - Close[1]));
}
Plot0.Set(SUM(TSV, 18)[0]);

i'm currently working on overlaying the ROC plot with TSV

[rrystrom]

Did anyone compile this?
Care to share the final code?