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ValueTrader

VWAP with SD Easy Lang Issues.

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HI, I've tried a few VWAP codes in EL on my Global Zen platform with no problems.

 

The lastet one i've tried:

 

LegacyColorValue = true]; inputs: iStartTime (0800), ResetMinutes (60); vars: PriceW(0), ShareW(0), Count(0), VolWAPValue(0), VolWAPVariance(0), VolWAPSD(0); if mod( (TimeToMinutes(time)-TimeToMinutes(iStartTime) , TimeToMinutes(ResetMinutes) = 0 then begin PriceW = 0; ShareW = 0; Count = -1; Value1 = 0; Value2 = 0; VolWAPValue = 0; end; PriceW = PriceW + (AvgPrice * (UpTicks+DownTicks)); ShareW = ShareW + (UpTicks+DownTicks); Count = Count + 1; Value3 = 0; if ShareW > 0 then VolWAPValue = PriceW / ShareW; {Calculate the individual variance terms for each intraday bar starting with the current bar and looping back through each bar to the start bar. The terms are each normalized according to the Variance formula for each level of volume at each price bar } For Value1 = 0 To Count Begin Value2 = ((UpTicks[Value1]+DownTicks[Value1])/ShareW) * (Square(AvgPrice[Value1]-VolWAPValue)); Value3 = Value3 + Value2; End; VolWAPVariance = Value3; VolWAPSD = SquareRoot(VolWAPVariance); Plot1(VolWAPValue, "VWAP"); Plot2(VolWAPValue + VolWAPSD, "VWAP1SDUp"); Plot3(VolWAPValue - VolWAPSD, "VWAP1SDDown"); Plot4(VolWAPValue + (2*VolWAPSD), "VWAP2SDUp"); Plot5(VolWAPValue - (2*VolWAPSD), "VWAP2SDDown");

 

Comes up with 2 syntax errors and Unsupported attribute 'LeagacyColorVale"

 

Does anyone know the fix for these, and also can anyone reccomend a site to learn EL coding.

 

Thanks

VT

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Panic over, i've solved it now. If anyone would like the completed code (Easy Language for Open E Cry) let me know.

 

VT

 

why don't you just post the code.

this is a mutual community, that's why you came here in the first place.

(unless you are fishing for contact names)

 

 

 

ps. pls use code tag to wrap the code

it is the # sign above the message window.

 

tagged code looks like this:

 

LegacyColorValue = true]; 

inputs: 
   VolWAPValue(0), 
   VolWAPVariance(0), 
   VolWAPSD(0); 

if TimeToMinutes(ResetMinute_s) = 0 then 
begin 
   PriceW = 0;
end;

Edited by Tams

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why don't you just post the code.

this is a mutual community, that's why you came here in the first place.

(unless you are fishing for contact names)

 

Not sure if you're being rude in a friendly way, or friendly in a rude way.

 

I'll post the code and look forward the remarks that make coming these forums such a fun and rewarding experiance.

 

vars: vwap(0),
pv(0),
Totalvolume(0),
Barfromstart(0),
Squareddeviations(0),
Probabilityweighteddeviations(0),
deviationsum(0),
standarddeviation(0);
If date > date[1] 
then 
begin
Barfromstart=0;
pv=AvgPrice*volume;
Totalvolume=volume;
vwap=pv/totalvolume;
end
else
begin
Barfromstart=Barfromstart[1]+1;
pv=pv[1] + AvgPrice*Volume;
Totalvolume=Totalvolume[1] + Volume;
vwap=pv/Totalvolume;
end;
deviationsum=0;
for value1= 0 to Barfromstart
begin
Squareddeviations=Square( vwap-avgprice[value1]);
Probabilityweighteddeviations=volume[value1]*Squareddeviations/Totalvolume;
deviationsum=deviationsum +Probabilityweighteddeviations;
end;

standarddeviation=SquareRoot(deviationsum); 
Plot1(vwap);
Plot2(vwap+standarddeviation);
Plot3(vwap+2*standarddeviation);
Plot4(vwap-standarddeviation);
Plot5(vwap-2*standarddeviation);

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Hi,

 

I saw your EL code for the VWAP/SDs and imported it to OEC. Is this study similar to Jerry´s study, found under the Trading with Market Statistics threads here at TL.com?

 

Is it for tick-by-tick or 2m? At what time do you start the study?

 

I am using Jerry´s study in Ensign and want to compare it to yours.

 

Regards,

Halli.

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Hi,

 

I saw your EL code for the VWAP/SDs and imported it to OEC. Is this study similar to Jerry´s study, found under the Trading with Market Statistics threads here at TL.com?

 

Is it for tick-by-tick or 2m? At what time do you start the study?

 

I am using Jerry´s study in Ensign and want to compare it to yours.

 

Regards,

Halli.

 

I use it on a 5min as i find 2 min far too noisy for my requirements.

 

I do not use it in the same way as Jerry (although his posts and videos are excellent) For me it is an extra tool in an holostic approach to trading and market structure.

 

The study will start at the same time as your default market start times on the OEC platform.

 

By posting this code i am in no way reccomending its use in any particular way.

best to paper trade it first to suit your own style.

 

Best of Luck

 

VT

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It makes me chuckle that people sell stuff like this, I guess it helps those that have no interest in modifying the code themselves. Maybe I should simply post all my VWAP SD indicators which do all that and more:)

 

Anyway bomber there will probably be a line like

 

if date > date[1] then

 

Remove that and you will get a non resetting distribution.

 

Keep a count of days and (pretty trivial) to have an N day distribution.

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It makes me chuckle that people sell stuff like this, I guess it helps those that have no interest in modifying the code themselves. Maybe I should simply post all my VWAP SD indicators which do all that and more:)

 

Anyway bomber there will probably be a line like

 

if date > date[1] then

 

Remove that and you will get a non resetting distribution.

 

Keep a count of days and (pretty trivial) to have an N day distribution.

 

Hi BlowFish happy to hear your opinion. I think that sell stuff that come frome a free works it isn't really a good things, anyway this is my personal opinion.

Anyway I'd like to add N like number of day to calculate vwap in input, so i could shoose it,

 

And it would be great to combine a new vwap point of calculation when a strong minimum or maximum it is found.

 

Please if you know how to do help.

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Add something like this at the start of the main code loop:- (NumberofDays is an input)

if date > date[1] then
begin
n = n + 1;
if n = NumberofDays then 
begin	
	s = 0;
	n = 0;
	VWAP1 = VWAP;
	SD1 = SD;
	VWAP = 0;
	SumWeights = 0;
	SumWeightsOld = 0;
	VWAPOld = 0;
end;

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Where would you put that additional code in the formula to get a continuous VWAP/SDs for perhaps the past 2-3 days?

 

Regards,

Halli.

 

In the original code

If date > date[1] 

 

With Any Average, the longer the sample rate, the less sensitive it will be. Altering the VWAP for longer term analysis is great for just that. Dont expect to see many daytrading entry signals from it. The market sentiment / perception of value can change from one day to the next ( Compare Equities on the 18th & 19th this week as an example). Good Luck with it Halli.

 

VT

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Not sure it worked.

 

 

 

I think the key point to ask is did it 'work' for you?

 

If after testing it (OEC market replay give you the opportuntiy to try it out on multiple contracts) your results are positive, and you develop faith and a good feel for it then it 'works'.

 

Everyone processes the data we recieve on the charts differently, we are all dealing with approximations to a greater or lesser degree (with reference to volume).

 

Maybe use it as part of the jigsaw,and not the whole picture.

 

VT

Edited by ValueTrader
quoted previous post twice!

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Add something like this at the start of the main code loop:- (NumberofDays is an input)

if date > date[1] then
begin
n = n + 1;
if n = NumberofDays then 
begin	
	s = 0;
	n = 0;
	VWAP1 = VWAP;
	SD1 = SD;
	VWAP = 0;
	SumWeights = 0;
	SumWeightsOld = 0;
	VWAPOld = 0;
end;

 

Hi BlowFish thans for your help.

Now I try to add code and make it works.

 

I post a question about twap indicator, are you able to code it or is very difficult?

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Thanks ValueTrader for posting this code. Can you show me how to modify it to start at a particular time, say 1800?

 

Thanks in advance,

 

MilesT

 

Code:

vars: vwap(0),

pv(0),

Totalvolume(0),

Barfromstart(0),

Squareddeviations(0),

Probabilityweighteddeviations(0),

deviationsum(0),

standarddeviation(0);

If date > date[1]

then

begin

Barfromstart=0;

pv=AvgPrice*volume;

Totalvolume=volume;

vwap=pv/totalvolume;

end

else

begin

Barfromstart=Barfromstart[1]+1;

pv=pv[1] + AvgPrice*Volume;

Totalvolume=Totalvolume[1] + Volume;

vwap=pv/Totalvolume;

end;

deviationsum=0;

for value1= 0 to Barfromstart

begin

Squareddeviations=Square( vwap-avgprice[value1]);

Probabilityweighteddeviations=volume[value1]*Squareddeviations/Totalvolume;

deviationsum=deviationsum +Probabilityweighteddeviations;

end;

 

standarddeviation=SquareRoot(deviationsum);

Plot1(vwap);

Plot2(vwap+standarddeviation);

Plot3(vwap+2*standarddeviation);

Plot4(vwap-standarddeviation);

Plot5(vwap-2*standarddeviation);

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Dont forget to wrap to code when posting, using the hash on the top right hand side of the reply window. It makes the code easier to read.

 

{Example code here} plot1(open,"open");

 

As for you start time question, the simplest way would be to open a new chart and alter the default start time. Or you could use...

 

If time >1759 and time<1801 then begin

 

at the start of the code. you'd also need the place an

End;

at the end of the code.

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