#
# TD Ameritrade IP Company, Inc. (c) 2008-2019 ParabolicSAR
# Changed to 4 hour aggregation by Horserider 12/13/2019
input accelerationFactor = 0.02;
input accelerationLimit = 0.2;
Assert(accelerationFactor > 0, "'acceleration factor' must be positive: " + accelerationFactor);
Assert(accelerationLimit >= accelerationFactor, "'acceleration limit' (" + accelerationLimit + ") must be greater than or equal to 'acceleration factor' (" + accelerationFactor + ")");
def state = {default init, long, short};
def extreme;
def SAR;
def acc;
input agg = AggregationPeriod.FOUR_HOURS;
def high = high (period = agg);
def low = low...
#
# TD Ameritrade IP Company, Inc. (c) 2008-2019 ParabolicSAR
# Changed to 4 hour aggregation by Horserider 12/13/2019
input accelerationFactor = 0.02;
input accelerationLimit = 0.2;
Assert(accelerationFactor > 0, "'acceleration factor' must be positive: " + accelerationFactor);
Assert(accelerationLimit >= accelerationFactor, "'acceleration limit' (" + accelerationLimit + ") must be greater than or equal to 'acceleration factor' (" + accelerationFactor + ")");
def state = {default init, long, short};
def extreme;
def SAR;
def acc;
input agg = AggregationPeriod.FOUR_HOURS;
def high = high (period = agg);
def low = low (period = agg);
switch (state[1]) {
case init:
state = state.long;
acc = accelerationFactor;
extreme = high;
SAR = low;
case short:
if (SAR[1] < high)
then {
state = state.long;
acc = accelerationFactor;
extreme = high;
SAR = extreme[1];
} else {
state = state.short;
if (low < extreme[1])
then {
acc = Min(acc[1] + accelerationFactor, accelerationLimit);
extreme = low;
} else {
acc = acc[1];
extreme = extreme[1];
}
SAR = Max(Max(high, high[1]), SAR[1] + acc * (extreme - SAR[1]));
}
case long:
if (SAR[1] > low)
then {
state = state.short;
acc = accelerationFactor;
extreme = low;
SAR = extreme[1];
} else {
state = state.long;
if (high > extreme[1])
then {
acc = Min(acc[1] + accelerationFactor, accelerationLimit);
extreme = high;
} else {
acc = acc[1];
extreme = extreme[1];
}
SAR = Min(Min(low, low[1]), SAR[1] + acc * (extreme - SAR[1]));
}
}
plot parSAR = SAR;
parSAR.SetPaintingStrategy(PaintingStrategy.POINTS);
parSAR.SetDefaultColor(GetColor(5));
declare lower;
input TimeFrame1 = AggregationPeriod.MIN;
input TimeFrame2 = AggregationPeriod.TWO_MIN;
input TimeFrame3 = AggregationPeriod.FIVE_MIN;
input TimeFrame4 = AggregationPeriod.TEN_MIN;
input TimeFrame5 = AggregationPeriod.FIFTEEN_MIN;
input PaintBars = {default "yes", "no"};
def close1 = Close(Period = TimeFrame1);
def close2 = Close(Period = TimeFrame2);
def close3 = Close(Period = TimeFrame3);
def close4 = Close(Period = TimeFrame4);
def close5 = Close(Period = TimeFrame5);
def low1 = Low(Period = TimeFrame1);
def low2 = Low(Period = TimeFrame2);
def low3 = Low(Period = TimeFrame3);
def low4 = Low(Period = TimeFrame4);
def low5 = Low(Period = TimeFrame5);
def high1 = High(Period = TimeFrame1);
def high2 = High(Period = TimeFrame2);
def high3 = High(Period = TimeFrame3);
def high4 = High(Period = TimeFrame4);
def high5 = High(Period = TimeFrame5);
input accelerationFactor = 0.02;
input accelerationLimit = 0.2;
assert(accelerationFactor > 0, "'acceleration factor' must be positive: " + accelerationFactor);
assert(accelerationLimit >= accelerationFactor, "'acceleration limit' (" + accelerationLimit + ") must be greater than or equal to 'acceleration factor' (" + accelerationFactor + ")");
##### Chart Time-frame (Time-frame 1)
def state = {default init, long, short};
def extreme;
def SAR;
def acc;
switch (state[1]) {
case init:
state = state.long;
acc = accelerationFactor;
extreme = high;
SAR = low;
case short:
if (SAR[1] < high)
then {
state = state.long;
acc = accelerationFactor;
extreme = high;
SAR = extreme[1];
} else {
state = state.short;
if (low < extreme[1])
then {
acc = min(acc[1] + accelerationFactor, accelerationLimit);
extreme = low;
} else {
acc = acc[1];
extreme = extreme[1];
}
SAR = max(max(high, high[1]), SAR[1] + acc * (extreme - SAR[1]));
}
case long:
if (SAR[1] > low)
then {
state = state.short;
acc = accelerationFactor;
extreme = low;
SAR = extreme[1];
} else {
state = state.long;
if (high > extreme[1])
then {
acc = min(acc[1] + accelerationFactor, accelerationLimit);
extreme = high;
} else {
acc = acc[1];
extreme = extreme[1];
}
SAR = min(min(low, low[1]), SAR[1] + acc * (extreme - SAR[1]));
}
}
##### Time-frame 2
def state2 = {default init, long, short};
def extreme2;
def SAR2;
def acc2;
switch (state2[1]) {
case init:
state2 = state2.long;
acc2 = accelerationFactor;
extreme2 = high2;
SAR2 = low2;
case short:
if (SAR2[1] < high2)
then {
state2 = state2.long;
acc2 = accelerationFactor;
extreme2 = high2;
SAR2 = extreme2[1];
} else {
state2 = state2.short;
if (low2 < extreme2[1])
then {
acc2 = min(acc2[1] + accelerationFactor, accelerationLimit);
extreme2 = low2;
} else {
acc2 = acc2[1];
extreme2 = extreme2[1];
}
SAR2 = max(max(high2, high2[1]), SAR2[1] + acc2 * (extreme2 - SAR2[1]));
}
case long:
if (SAR2[1] > low2)
then {
state2 = state2.short;
acc2 = accelerationFactor;
extreme2 = low2;
SAR2 = extreme2[1];
} else {
state2 = state2.long;
if (high2 > extreme2[1])
then {
acc2 = min(acc2[1] + accelerationFactor, accelerationLimit);
extreme2 = high2;
} else {
acc2 = acc2[1];
extreme2 = extreme2[1];
}
SAR2 = min(min(low2, low2[1]), SAR2[1] + acc2 * (extreme2 - SAR2[1]));
}
}
##### Time-frame 3
def state3 = {default init, long, short};
def extreme3;
def SAR3;
def acc3;
switch (state3[1]) {
case init:
state3 = state3.long;
acc3 = accelerationFactor;
extreme3 = high3;
SAR3 = low3;
case short:
if (SAR3[1] < high3)
then {
state3 = state3.long;
acc3 = accelerationFactor;
extreme3 = high3;
SAR3 = extreme3[1];
} else {
state3 = state3.short;
if (low3 < extreme3[1])
then {
acc3 = min(acc3[1] + accelerationFactor, accelerationLimit);
extreme3 = low3;
} else {
acc3 = acc3[1];
extreme3 = extreme3[1];
}
SAR3 = max(max(high3, high3[1]), SAR3[1] + acc3 * (extreme3 - SAR3[1]));
}
case long:
if (SAR3[1] > low3)
then {
state3 = state3.short;
acc3 = accelerationFactor;
extreme3 = low3;
SAR3 = extreme3[1];
} else {
state3 = state3.long;
if (high3 > extreme3[1])
then {
acc3 = min(acc3[1] + accelerationFactor, accelerationLimit);
extreme3 = high3;
} else {
acc3 = acc3[1];
extreme3 = extreme3[1];
}
SAR3 = min(min(low3, low3[1]), SAR3[1] + acc3 * (extreme3 - SAR3[1]));
}
}
##### Time-frame 4
def state4 = {default init, long, short};
def extreme4;
def SAR4;
def acc4;
switch (state4[1]) {
case init:
state4 = state4.long;
acc4 = accelerationFactor;
extreme4 = high4;
SAR4 = low4;
case short:
if (SAR4[1] < high4)
then {
state4 = state4.long;
acc4 = accelerationFactor;
extreme4 = high4;
SAR4 = extreme4[1];
} else {
state4 = state4.short;
if (low4 < extreme4[1])
then {
acc4 = min(acc4[1] + accelerationFactor, accelerationLimit);
extreme4 = low4;
} else {
acc4 = acc4[1];
extreme4 = extreme4[1];
}
SAR4 = max(max(high4, high4[1]), SAR4[1] + acc4 * (extreme4 - SAR4[1]));
}
case long:
if (SAR4[1] > low4)
then {
state4 = state4.short;
acc4 = accelerationFactor;
extreme4 = low4;
SAR4 = extreme4[1];
} else {
state4 = state4.long;
if (high4 > extreme4[1])
then {
acc4 = min(acc4[1] + accelerationFactor, accelerationLimit);
extreme4 = high4;
} else {
acc4 = acc4[1];
extreme4 = extreme4[1];
}
SAR4 = min(min(low4, low4[1]), SAR4[1] + acc4 * (extreme4 - SAR4[1]));
}
}
##### time-frame 5
def state5 = {default init, long, short};
def extreme5;
def SAR5;
def acc5;
switch (state5[1]) {
case init:
state5 = state5.long;
acc5 = accelerationFactor;
extreme5 = high5;
SAR5 = low5;
case short:
if (SAR5[1] < high5)
then {
state5 = state5.long;
acc5 = accelerationFactor;
extreme5 = high5;
SAR5 = extreme5[1];
} else {
state5 = state5.short;
if (low5 < extreme5[1])
then {
acc5 = min(acc5[1] + accelerationFactor, accelerationLimit);
extreme5 = low5;
} else {
acc5 = acc5[1];
extreme5 = extreme5[1];
}
SAR5 = max(max(high5, high5[1]), SAR5[1] + acc5 * (extreme5 - SAR5[1]));
}
case long:
if (SAR5[1] > low5)
then {
state5 = state5.short;
acc5 = accelerationFactor;
extreme5 = low5;
SAR5 = extreme5[1];
} else {
state5 = state5.long;
if (high5 > extreme5[1])
then {
acc5 = min(acc5[1] + accelerationFactor, accelerationLimit);
extreme5 = high5;
} else {
acc5 = acc5[1];
extreme5 = extreme5[1];
}
SAR5 = min(min(low5, low5[1]), SAR5[1] + acc5 * (extreme5 - SAR5[1]));
}
}
##### Plots
def PSAR = if IsNaN(SAR) then Double.NaN else 1;
def PSAR2 = if IsNaN(SAR2) then Double.NaN else 2;
def PSAR3 = if IsNaN(SAR3) then Double.NaN else 3;
def PSAR4 = if IsNaN(SAR4) then Double.NaN else 4;
def PSAR5 = if IsNaN(SAR5) then Double.NaN else 5;
def PSAR_TF1 = if state == state.long then 0 else 1;
def PSAR_TF2 = if state2 == state2.long then 0 else 1;
def PSAR_TF3 = if state3 == state3.long then 0 else 1;
def PSAR_TF4 = if state4 == state4.long then 0 else 1;
def PSAR_TF5 = if state5 == state5.long then 0 else 1;
plot MTF_PSAR = 6;
MTF_PSAR.SetPaintingStrategy(PaintingStrategy.SQUARES);
MTF_PSAR.SetLineWeight(lineWeight = 3);
MTF_PSAR.DefineColor("Buy", GetColor(5));
MTF_PSAR.DefineColor("Sell", GetColor(6));
MTF_PSAR.AssignValueColor ( if (PSAR_TF1 + PSAR_TF2 + PSAR_TF3 + PSAR_TF4 + PSAR_TF5) >= 3 then MTF_PSAR.Color("Buy") else MTF_PSAR.Color("Sell"));
plot totalAssetTurnover = (PSAR_TF1 + PSAR_TF2 + PSAR_TF3 + PSAR_TF4 + PSAR_TF5);
plot line = 3;
MTF indicators will only reflect the correct value when the high timeframe closes.Howdy @horserider, sorry to necropost but I noticed the PSAR MTF code you posted will plot different values when viewed in lower aggregations.
Example for AAPL: "WEEK" PSAR level when viewing on a 1Month : Day chart is $149.12, but when viewing on a 1Year : Day chart is $165.16. "YEAR" PSAR level on 1Year : Day is $116.21 versus 66.10 on 5Year : Week.
The value can also change when looking at the same "time frame" (5 years for example) but when using a different candle length (4 Hour, Day, Week, Month...).
I also noticed this happens when almost any higher aggregation plot is created outside the timeframe that's being displayed.
Do you know if there's a way for these plots to display the same value across all aggregations regardless of length or candle duration?
Thanks!
Ahhhhh... Wow, as you have astuted; it uses extremes in its calculations:Thanks for the reply @MerryDay ... I thought for sure my question would have been lost in the abyss by now.
Also, thanks for the clarification and the link! I went ahead and gave it a read and it's possible that I'm encountering some of what's in that post. It's also possible that what I'm experiencing is part of how PSAR plots overall.
I'm fairly familiar with MTF studies, specifically MTF StandardDev/Error Channels as well as MTF Moving averages (I've used and modified ThinkScript code for both). Generally, the values they plot are pretty consistent across all the lower aggregations and they only seem to vary slightly when looking an smaller and smaller aggregations (plotting a Weekly MTF MA level on a 10 minute chart for example).
What I'm running into is a bit different.
Essentially, what I think is happening, is that when the Stop-And-Reverse (switch from Long to Short) occurs outside the viewed time frame, it somehow changes the plot (not just the value but also changes from long to short).
Here's a couple screenshots of what I'm talking about:
I'm assuming it has something to do with how the indicator looks back when viewing smaller aggregations. So far, my solution has been to "max out" any aggregation I'm viewing (1D : Max, 4H : 360Day, etc) to make sure it doesn't mis-plot.
Any input or help is always greatly appreciated!
Beautiful... I'll give those a read @MerryDay. Thank you!Ahhhhh... Wow, as you have astuted; it uses extremes in its calculations:
Read more here and here for some workarounds:
https://usethinkscript.com/threads/tos-parabolic-sar-bug-is-there-a-working-alternative.10260/
https://usethinkscript.com/threads/psar-shifting-question.3709/
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