TDA TimeSegmentedValue, TimeSegmentedValueRatio Indicators

Which version are you running? The lastest version is on Github. Pip is for major releases.

import pandas_ta as ta
print(ta.version)
0.3.14b0

Hi Kevin,

Do you think it is possible to create a couple of new indicators for me that I am currently using on TOS? Here is the thinkscript code for them. Thank you so much for your help.

### RelativeVolumeStDev: Also known as: Absolute Zscore of Volume. Does not need to be implemented, see example in comments below. - KJ

#
# TD Ameritrade IP Company, Inc. (c) 2014-2021
#

declare lower;
declare zerobase;

input length = 60;
input numDev = 2.0;
input allowNegativeValues = no;

def rawRelVol = (volume - Average(volume, length)) / StDev(volume, length);
plot RelVol = if allowNegativeValues then rawRelVol else Max(0, rawRelVol);
plot StDevLevel = numDev;

RelVol.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);
RelVol.SetLineWeight(3);
RelVol.DefineColor("Above", GetColor(0));
RelVol.DefineColor("Below", GetColor(2));
RelVol.AssignValueColor(if RelVol >= numDev then RelVol.Color("Above") else RelVol.Color("Below"));
StDevLevel.SetDefaultColor(GetColor(7));
StDevLevel.SetStyle(Curve.SHORT_DASH);

### Time Segmented Value

input length = 18;
input avgLength = 10;


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

def TSV = sum( if close > close[1] then volume * (close - close[1]) else if close < close[1] then -1* volume *(close - close[1]) else 0, length);

#Plot TSVAvg = Average( TSV,2);
##TSVAvg.SetDefaultColor(Color.GREEN);
#TSVAvg.SetLineWeight(3);
#TSVAvg.AssignValueColor(color.blue);
#TSVAvg.SetStyle(Curve.MEDIUM_DASH);
##TSVAvg.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);

Plot TSVAvg2 = Average(TSV, avglength);
TSVAvg2.SetLineWeight(3);
TSVAvg2.AssignValueColor(color.yellow);
TSVAvg2.SetStyle(Curve.FIRM);
#TSVAvg2.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);


plot ZeroLine = 0;
ZeroLine.SetLineWeight(2);
ZeroLine.SetDefaultColor(Color.RED);
ZeroLine.SetStyle(Curve.SHORT_DASH);

plot TSV2 = TSV;

#TSV.SetDefaultColor(GetColor(1));
TSV2.SetLineWeight(1);
TSV2.AssignValueColor(if close > close[1] then color.green else color.red);
TSV2.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);



def tt = TSV / TSVAvg2;
#tt.SetLineWeight(3);
#tt.AssignValueColor(color.yellow);
#tt.SetStyle(Curve.SHORT_DASH);


AddLabel(yes, Round(tt, 2), if TSV > TSVAvg2 then if close > open then color.dark_green else color.yellow else color.white);

### Time Segmented Value Ratio:

input length = 18;
input avgLength = 10;


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

def TSV = sum( if close > close[1] then volume * (close - close[1]) else if close < close[1] then -1* volume *(close - close[1]) else 0, length);

#Plot TSVAvg = Average( TSV,2);
##TSVAvg.SetDefaultColor(Color.GREEN);
#TSVAvg.SetLineWeight(3);
#TSVAvg.AssignValueColor(color.blue);
#TSVAvg.SetStyle(Curve.MEDIUM_DASH);
##TSVAvg.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);

def TSVAvg2 = Average(TSV, avglength);

plot ZeroLine = 0;
ZeroLine.SetLineWeight(2);
ZeroLine.SetDefaultColor(Color.RED);
ZeroLine.SetStyle(Curve.MEDIUM_DASH);

#def TSV2 = TSV;



plot tt = TSV / TSVAvg2;
tt.SetLineWeight(3);
tt.AssignValueColor(color.yellow);
tt.SetStyle(Curve.SHORT_DASH);```

[twopirllc]

@hhashim1,

Upon review of RelativeVolumeStDev source, it is essentially the zscore of volume input and therefore is no need to implement a separate indicator for this.

df = # ohlcv
df["relvolstd"] = ta.zscore(df["volume"], length=60) # with negative values
# OR
df["relvolstd"] = ta.zscore(df["volume"], length=60).abs() # with positive values
print(df)

Kind Regards, KJ

[hhashim1]

Hey, count me in! I will download the development repo and start looking at the structure. In the meantime, I will also ask my friend.

By the way, I have already updated the code to use Polygon as a data source on top of AlphaAdvantage and Yahoo. My friend wrote a library for Polygon and I have used his as he makes it super easy. He is working on making his library the official Polygon library 😃

By the way, is it possible to have a Discord server for discussion and support? I think its much faster and you won’t be the one to be knee-deep in answering questions. You will have other members who can always chime in. You also have your collabs who can help.

Think about it. I am a member of a couple of other discord servers that are support systems for other libraries and it makes it much easier on the owner.

Let’s talk! Oh, you can email me directly. I emailed you last night so you can respond to my personal email.