plotting a sloped line

[cfire23]

halcyonguy,

I've studied your formula 3
https://usethinkscript.com/threads/plotting-in-the-expansion-area.9765/#post-91019

for plotting the sloped line and tried unsuccessfully for the past 3 days to modify it so that the slope line begins at the last swinglow within the last 12 bars on a 5minute chart and extends thru current 5minute bar close. I don't know either what's so hard for me to comprehend but any help you would provide is greatly appreciated.

here is image of what i'm trying to achieve:

here is my modified code:

input formula_bars = 6;
def na = Double.NaN;
def bn = BarNumber();
def lastbar = !IsNaN(close[0]) and IsNaN(close[-1]);
def lastbarbn = if lastbar then bn else lastbarbn[1];
def h30mh1 = highest(high,6)[1];

# formula3 plots line based on the slope between the highest high within the last 6 bars to the current bar close
def slope = if bn < lastbarbn then na
# else if lastbar then (close - close[1] )
else if lastbar then (close - h30mh1)
else slope[1];

def formula3 = if (bn < lastbarbn or bn > (lastbarbn + formula_bars)) then na
else if bn == (lastbarbn) then h30mh1
else (formula3[1] + slope);

plot f3 = formula3[-3];
# plot f3 = formula3[-6] works but i want the line plot to always start from the last highest high from the previous 6 bars; formula[-6] offsets the plot by 6 bars it doesn't start the plot from h30mh1 which is the highest high from the previous 6 bars. how can this be done without using [-6]? h30mh1 is a variable where i want the line plot to begin but i need to reference it as a constant. i have no idea how to reference the h30mh1 variable as a constant without getting an error?

 

[cfire23]

samer800,
would you modify the sextant code so that the line plot begins at the high price from 6 bars back to the current bar close price on a 5 minute chart?

here is image of request:

Greetings,

Looking for assistance to understand why i am unable to achieve the following with thinkorswim: plot a dynamic trendline from the highest high from the previous 6 bars to the current bar close price. so the trendline needs to update/redraw every 6 bars as time progresses.

I tried to modify Halcyonguy's plot in expansion area script to plot a dynamic trendline
https://usethinkscript.com/threads/plotting-in-the-expansion-area.9765/#post-91019
with limited success.

what i can't understand is how to code where the trendline plot begins which would be the highest high from the previous 6 bars.

It works by using [ -6 ] but is there a way to use h30mh1 which is the defined variable for highest high from the previous 6 bars?

here is modified code:

input formula_bars = 6;
def na = Double.NaN;
def bn = BarNumber();
def lastbar = !IsNaN(close[0]) and IsNaN(close[-1]);
def lastbarbn = if lastbar then bn else lastbarbn[1];
def h30mh1 = highest(high,6)[1];

# formula3 plots line based on the slope between the highest high within the last 6 bars to the current bar close
def slope = if bn < lastbarbn then na
else if lastbar then (close - h30mh1)
else slope[1];

def formula3 = if (bn < lastbarbn or bn > (lastbarbn + formula_bars)) then na
else if bn == (lastbarbn) then h30mh1
else (formula3[1] + slope);

plot f3 = formula3 [ -6 ];
# plot f3 = formula3[-6] works but i want the line plot to always start from the last highest high from the previous 6 bars; formula[-6] offsets the plot by 6 bars it doesn't start the plot from h30mh1 which is the highest high from the previous 6 bars. how can this be done without using [-6]? h30mh1 is the variable specifying where to begin line plot but i need to reference it as a constant. i have no idea how to reference the h30mh1 variable as a constant without getting an error?

 

[halcyonguy]

halcyonguy,

I've studied your formula 3
https://usethinkscript.com/threads/plotting-in-the-expansion-area.9765/#post-91019

for plotting the sloped line and tried unsuccessfully for the past 3 days to modify it so that the slope line begins at the last swinglow within the last 12 bars on a 5minute chart and extends thru current 5minute bar close. I don't know either what's so hard for me to comprehend but any help you would provide is greatly appreciated.

here is image of what i'm trying to achieve:


here is my modified code:

input formula_bars = 6;
def na = Double.NaN;
def bn = BarNumber();
def lastbar = !IsNaN(close[0]) and IsNaN(close[-1]);
def lastbarbn = if lastbar then bn else lastbarbn[1];
def h30mh1 = highest(high,6)[1];

# formula3 plots line based on the slope between the highest high within the last 6 bars to the current bar close
def slope = if bn < lastbarbn then na
# else if lastbar then (close - close[1] )
else if lastbar then (close - h30mh1)
else slope[1];

def formula3 = if (bn < lastbarbn or bn > (lastbarbn + formula_bars)) then na
else if bn == (lastbarbn) then h30mh1
else (formula3[1] + slope);

plot f3 = formula3[-3];
# plot f3 = formula3[-6] works but i want the line plot to always start from the last highest high from the previous 6 bars; formula[-6] offsets the plot by 6 bars it doesn't start the plot from h30mh1 which is the highest high from the previous 6 bars. how can this be done without using [-6]? h30mh1 is a variable where i want the line plot to begin but i need to reference it as a constant. i have no idea how to reference the h30mh1 variable as a constant without getting an error?

reply to #1

sorry, i guess i missed this one.
looking at it.

its good to have detailed pics. but also put the notes as text in a post.
then they can be copied and used as the design rules

you don't seem to have code to define a valley?

 

[halcyonguy]

halcyonguy,

I've studied your formula 3
https://usethinkscript.com/threads/plotting-in-the-expansion-area.9765/#post-91019

for plotting the sloped line and tried unsuccessfully for the past 3 days to modify it so that the slope line begins at the last swinglow within the last 12 bars on a 5minute chart and extends thru current 5minute bar close. I don't know either what's so hard for me to comprehend but any help you would provide is greatly appreciated.

here is image of what i'm trying to achieve:


here is my modified code:

input formula_bars = 6;
def na = Double.NaN;
def bn = BarNumber();
def lastbar = !IsNaN(close[0]) and IsNaN(close[-1]);
def lastbarbn = if lastbar then bn else lastbarbn[1];
def h30mh1 = highest(high,6)[1];

# formula3 plots line based on the slope between the highest high within the last 6 bars to the current bar close
def slope = if bn < lastbarbn then na
# else if lastbar then (close - close[1] )
else if lastbar then (close - h30mh1)
else slope[1];

def formula3 = if (bn < lastbarbn or bn > (lastbarbn + formula_bars)) then na
else if bn == (lastbarbn) then h30mh1
else (formula3[1] + slope);

plot f3 = formula3[-3];
# plot f3 = formula3[-6] works but i want the line plot to always start from the last highest high from the previous 6 bars; formula[-6] offsets the plot by 6 bars it doesn't start the plot from h30mh1 which is the highest high from the previous 6 bars. how can this be done without using [-6]? h30mh1 is a variable where i want the line plot to begin but i need to reference it as a constant. i have no idea how to reference the h30mh1 variable as a constant without getting an error?

reply to #1

this draws 2 diagonal lines. (can turn them off)
.. from last peak to current bar
.. from last valley to current bar

can show arrows on peaks and valleys
peaks and valleys , calc by highest or lowest within 7 bars

i didn't add anything to look back only within certain bars. it just finds the last valley and last peak.

#line_slope_from_valley

#https://usethinkscript.com/threads/plotting-a-sloped-line.20771/
#plotting a sloped line
#cfire23  Mar 8, 2025

#halconguy,
#I've studied your formula 3
#https://usethinkscript.com/threads/plotting-in-the-expansion-area.9765/#post-91019

#for plotting the sloped line and tried unsuccessfully for the past 3 days to modify it so that the slope line begins at the last swinglow within the last 12 bars on a 5minute chart and extends thru current 5minute bar close. I don't know either what's so hard for me to comprehend but any help you would provide is greatly appreciated.

#here is image of what i'm trying to achieve:

#here is my modified code:


#---------------------

#https://usethinkscript.com/threads/zigzag-high-low-with-supply-demand-zones-for-thinkorswim.172/#post-7048
#   Robert Payne
def na = double.nan;
def bn = BarNumber();

#def lastBar = HighestAll(if IsNaN(close) then 0 else bn);
def lastbn = HighestAll(if IsNaN(close) then 0 else bn);
def lastbar = bn == lastbn;
#def lastbar = (!isnan(close) and isnan(close[-1]));

def highx = high;
def lowx = low;
input length = 7;

def offset = Min(length - 1, lastbn - bn);
def peak = highx > Highest(highx[1], length - 1) and highx == GetValue(Highest(highx, length), -offset);
def valley = lowx < Lowest(lowx[1], length - 1) and lowx == GetValue(Lowest(lowx, length), -offset);

input show_pk_val = no;
plot zhi = if show_pk_val and peak then high*1.0004 else na;
plot zlo = if show_pk_val and valley then low*0.9996 else na;
zlo.SetPaintingStrategy(PaintingStrategy.ARROW_UP);
zlo.SetDefaultColor(Color.red);
zlo.setlineweight(1);
zlo.hidebubble();

zhi.SetPaintingStrategy(PaintingStrategy.ARROW_DOWN);
zhi.SetDefaultColor(Color.green);
zhi.setlineweight(1);
zhi.hidebubble();

#--------------------
#input bars_back = 12;
#def en = (!isnan(close) and isnan(close[-(bars_back)]));
#def rngfirst = (!isnan(close[-(bars_back-1)]) and isnan(close[-(bars_back)]));
#addverticalline(rngfirst, "-");
#-----------------------
# keep bn of peaks and valleys
def pkbn2 = if peak then bn else pkbn2[1];
def valbn2 = if valley then bn else valbn2[1];
# find last bn of peaks and valleys
def pkbnhi = highestall(pkbn2);
def valbnhi = highestall(valbn2);

def n = 200;

def pkhi;
def pkbn;
def pkbarz;
def pkslope;
def vallo;
def valbn;
def valbarz;
def valslope;
#def first_pr;
if bn == 1 then {
 pkhi = 0;
 pkbn = 0;
 pkbarz = 0;
 pkslope = 0;

 vallo = 0;
 valbn = 0;
 valbarz = 0;
 valslope = 0;
} else if bn == valbnhi then {
# on last valley , calc slope to last bar
 pkhi = pkhi[1];
 pkbn = pkbn[1];
 pkbarz = pkbarz[1];
 pkslope = pkslope[1];

 vallo = low;
 valbn = bn;
 valbarz = lastbn - bn;
 valslope = (getvalue(close,-valbarz) - vallo)/valbarz;
} else if bn == pkbnhi then {
# on last peak , calc slope to last bar
 pkhi = high;
 pkbn = bn;
 pkbarz = lastbn - bn;
 pkslope = (getvalue(close,-pkbarz) - pkhi)/pkbarz;

 vallo = vallo[1];
 valbn = valbn[1];
 valbarz = valbarz[1];
 valslope = valslope[1];
} else {
 pkhi = pkhi[1];
 pkbn = pkbn[1];
 pkbarz = pkbarz[1];
 pkslope = pkslope[1];
 vallo = vallo[1];
 valbn = valbn[1];
 valbarz = valbarz[1];
 valslope = valslope[1];
}

# calc diag line from peak
def pkline = if isnan(close) then 0
 else if bn < pkbnhi then 0
 else if bn == pkbnhi then high
 else (pkline[1] + pkslope);

input show_peak_line = yes;
plot zpk = if show_peak_line and pkline > 0 then pkline else na;

# calc diag line from valley
def valline = if isnan(close) then 0
 else if bn < valbnhi then 0
 else if bn == valbnhi then low
 else (valline[1] + valslope);

input show_valley_line = yes;
plot zval = if show_valley_line and valline > 0 then valline else na;

#

 

[halcyonguy]

samer800,
would you modify the sextant code so that the line plot begins at the high price from 6 bars back to the current bar close price on a 5 minute chart?

here is image of request:


Greetings,

Looking for assistance to understand why i am unable to achieve the following with thinkorswim: plot a dynamic trendline from the highest high from the previous 6 bars to the current bar close price. so the trendline needs to update/redraw every 6 bars as time progresses.

I tried to modify Halcyonguy's plot in expansion area script to plot a dynamic trendline
https://usethinkscript.com/threads/plotting-in-the-expansion-area.9765/#post-91019
with limited success.

what i can't understand is how to code where the trendline plot begins which would be the highest high from the previous 6 bars.

It works by using [ -6 ] but is there a way to use h30mh1 which is the defined variable for highest high from the previous 6 bars?



here is modified code:

input formula_bars = 6;
def na = Double.NaN;
def bn = BarNumber();
def lastbar = !IsNaN(close[0]) and IsNaN(close[-1]);
def lastbarbn = if lastbar then bn else lastbarbn[1];
def h30mh1 = highest(high,6)[1];

# formula3 plots line based on the slope between the highest high within the last 6 bars to the current bar close
def slope = if bn < lastbarbn then na
else if lastbar then (close - h30mh1)
else slope[1];

def formula3 = if (bn < lastbarbn or bn > (lastbarbn + formula_bars)) then na
else if bn == (lastbarbn) then h30mh1
else (formula3[1] + slope);

plot f3 = formula3 [ -6 ];
# plot f3 = formula3[-6] works but i want the line plot to always start from the last highest high from the previous 6 bars; formula[-6] offsets the plot by 6 bars it doesn't start the plot from h30mh1 which is the highest high from the previous 6 bars. how can this be done without using [-6]? h30mh1 is the variable specifying where to begin line plot but i need to reference it as a constant. i have no idea how to reference the h30mh1 variable as a constant without getting an error?

reply to #2

this draws a line from the high of some bar in the past to the current bar

#line_slope_from_barx

#https://usethinkscript.com/threads/plotting-a-sloped-line.20771/
#plotting a sloped line

def na = double.nan;
def bn = BarNumber();

#def lastBar = HighestAll(if IsNaN(close) then 0 else bn);
def lastbn = HighestAll(if IsNaN(close) then 0 else bn);
def lastbar = bn == lastbn;
#def lastbar = (!isnan(close) and isnan(close[-1]));

#--------------------
input bars_back = 6;
def en = (!isnan(close[-(bars_back-1)]) and isnan(close[-bars_back]));
def rngfirst = (!isnan(close[-(bars_back-1)]) and isnan(close[-(bars_back)]));
#addverticalline(rngfirst, "-");
#-----------------------

def pkhi;
def pkbn;
def pkbarz;
def pkslope;
if bn == 1 then {
 pkhi = 0;
 pkbn = 0;
 pkbarz = 0;
 pkslope = 0;
} else if en then {
 pkhi = high;
 pkbn = bn;
 pkbarz = lastbn - bn;
 pkslope = (getvalue(close,-pkbarz) - pkhi)/pkbarz;
} else {
 pkhi = pkhi[1];
 pkbn = pkbn[1];
 pkbarz = pkbarz[1];
 pkslope = pkslope[1];
}

# calc diag line
def pkline = if bn == 1 or isnan(close) then 0
 else if bn < pkbn then 0
 else if bn == pkbn then high
 else (pkline[1] + pkslope);

input show_peak_line = yes;
plot zpk = if show_peak_line and pkline > 0 then pkline else na;
#