How To Create A Loop Until Prior Bars Meet Conditions

[joker12]

Guys, any idea how loop through last 3 candles ?..I did this what is working:
BUt at the end- if not 3 conditions are fullfiled I would like go throu code again but with open[2], close[2] etc..is here in thinkscript something like for loop?...

def opicka= open[1];
def zachodik= close[1];
#calculate 50% of candle
def midik= (opicka+zachodik)/2;
#measure range of yesterday
def rangik=(zachodik-opicka)/opicka*100;
def ran= if rangik<8 then 0 else 10;
#compare last price with midcandle
def c= ask;
def porovnavacka= (ask/midik-1)*100;
#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;
def condition3 = ran == 10;
def fin= if condition3 then 8 else 0;
def tot = condition1+condition2+fin;
#plot z =tot;

 

[halcyonguy]

i think i understand what you are trying to do, check previous data until tot = 0 ?
but there are some problems,
i think you will have to change conditions 1 and 2.

putting this in a chart study, this line causes an error.
def c= ask;

i changed these 2 lines , using close instead.
def c = close;
def porovnavacka= ( c /midik-1)*100;

these 2 conditions will never both be false. so tot will never be = 0
#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;

 

[joker12]

i think i understand what you are trying to do, check previous data until tot = 0 ?
but there are some problems,
i think you will have to change conditions 1 and 2.

putting this in a chart study, this line causes an error.
def c= ask;

i changed these 2 lines , using close instead.
def c = close;
def porovnavacka= ( c /midik-1)*100;

these 2 conditions will never both be false. so tot will never be = 0
#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;

Thank you...I do it for watchlist not for chart....
I did it finally during night-without loop..I hope so..will test it today..Basically I just wanted find wider candle from previous 5 candles:
(then in next step I just check if its wide enough)

#find max value from last 5 values
def max=if(rangik1>rangik2) then rangik1 else rangik2;
def max2=if(max>rangik3) then max else rangik3;
def max3=if(max2>rangik4) then max2 else rangik4;
def max4=if(max3>rangik5) then max3 else rangik5;

 

[halcyonguy]

Thank you...I do it for watchlist not for chart....
I did it finally during night-without loop..I hope so..will test it today..Basically I just wanted find wider candle from previous 5 candles:
(then in next step I just check if its wide enough)

#find max value from last 5 values
def max=if(rangik1>rangik2) then rangik1 else rangik2;
def max2=if(max>rangik3) then max else rangik3;
def max3=if(max2>rangik4) then max2 else rangik4;
def max4=if(max3>rangik5) then max3 else rangik5;

maybe this will help when you want to try using a fold loop.

here is a study that looks at x previous bars and finds how many consecutive bars are smaller than the current bar.
the Conditions are after the while parameter so when it becomes false, it stops.
https://usethinkscript.com/threads/...st-65-most-recent-days.7483/page-2#post-72474

engulfing bar, loop
it finds previous consecutive smaller bars
while (high > getvalue(high, k) and low < getvalue(low, k))

you could change the > < , so that line looks for bigger bars.
find previous larger bars
while (high < getvalue(high, k) and low > getvalue(low, k))

 

[joker12]

perfect..thank you

wouldnt you know if there is some function to stop loop at certain time?lets say I runn it 2 hours after open , or 3, or 4 but still I want to stop it at open...never coded anything with fime function so far...

 

[halcyonguy]

wouldnt you know if there is some function to stop loop at certain time?lets say I runn it 2 hours after open , or 3, or 4 but still I want to stop it at open...never coded anything with fime function so far...

it is be possible, to process a formula, only during a specific time period, or ignore it.

an example outline, not actual code

x = true if , current bar is between time1 and time2
if x then
...do desired formula
else
...do something else ( or nothing)

 

[halcyonguy]

Thank you...I do it for watchlist not for chart....
I did it finally during night-without loop..I hope so..will test it today..Basically I just wanted find wider candle from previous 5 candles:
(then in next step I just check if its wide enough)

#find max value from last 5 values
def max=if(rangik1>rangik2) then rangik1 else rangik2;
def max2=if(max>rangik3) then max else rangik3;
def max3=if(max2>rangik4) then max2 else rangik4;
def max4=if(max3>rangik5) then max3 else rangik5;

# these 4 lines

#find max value from last 5 values
#def max=if(rangik1>rangik2) then rangik1 else rangik2;
#def max2=if(max>rangik3) then max else rangik3;
#def max3=if(max2>rangik4) then max2 else rangik4;
#def max4=if(max3>rangik5) then max3 else rangik5;


# can be reduced to this

def max = max(rangik1 , rangik2);
def max2 = max(max , rangik3);
def max3 = max(max2 , rangik4);
def max4 = max(max3 , rangik5);

 

[halcyonguy]

Guys, any idea how loop through last 3 candles ?..I did this what is working:
BUt at the end- if not 3 conditions are fullfiled I would like go throu code again but with open[2], close[2] etc..is here in thinkscript something like for loop?...

def opicka= open[1];
def zachodik= close[1];
#calculate 50% of candle
def midik= (opicka+zachodik)/2;
#measure range of yesterday
def rangik=(zachodik-opicka)/opicka*100;
def ran= if rangik<8 then 0 else 10;
#compare last price with midcandle
def c= ask;
def porovnavacka= (ask/midik-1)*100;
#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;
def condition3 = ran == 10;
def fin= if condition3 then 8 else 0;
def tot = condition1+condition2+fin;
#plot z =tot;

REF post #1

i must be missing something. i tried to put your code in a chart and add a loop at the end, but it causes errors on c = ask.

i added this in, which used to work in another study, but not now , this causes an error too ?
def bid1 = close(priceType = "Bid");
def ask1 = close(priceType = "Ask");

maybe tos changed how to read bid and ask in a chart ?

i added a fold loop after your code, to look at previous bars, to find when tot had a value greater than totminvalue.
i changed c =ask , to c = close


# copied form my engulfing code, posted on here somewhere
input lookback = 100;

def totminvalue = 5;
# i have no idea what this should be. just a guess

# if while is used, fold loops as long as while statement is true
# when while becomes false, the loop stops, even if fold hasn't reached the highest count value

def barcnt = fold k = 1 to (lookback + 1)
with p
# this looks for smaller bars before the current bar
# while (high > getvalue(high, k) and low < getvalue(low, k))
while ( getvalue(tot, k) < totminvalue )
do p + 1;

# barcnt will = the offset # , pointing back to the bar with the desired value of tot
def prev_tot = if barcnt < lookback then getvalue( tot, barcnt ) else 0;

def bn = barnumber();
# display some variables for debugging
addchartbubble(1, low, bn + "\n" + tot + "\n" + barcnt + "\n" + prev_tot, color.yellow, no);


================================================

if i replace def c = ask;
with this def c = close;
it doesn't have errors

it looks like tot has values of 1 or 2


here is my modified code, using close, instead of ask

def bn = BarNumber();
# lines_bidask_00
def bid1 = close(priceType = "Bid");
def ask1 = close(priceType = "Ask");
def Mark1 = close(priceType = "Mark");
def Last1 = close(priceType = "Last");


def opicka = open[1];
def zachodik = close[1];
#calculate 50% of candle
def midik = (opicka + zachodik) / 2;
#measure range of yesterday
def rangik = (zachodik - opicka) / opicka * 100;
def ran = if rangik < 8 then 0 else 10;
#compare last price with midcandle

#def c = ask;
#def porovnavacka = (ask / midik - 1) * 100;
#def c = ask1;
def c = close;
def porovnavacka = ( c / midik - 1) * 100;

#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;
def condition3 = ran == 10;
def fin = if condition3 then 8 else 0;
def tot = condition1 + condition2 + fin;
#plot z = tot;

# this shows errors for tot on all bars
#addchartbubble(1, low, tot , color.yellow, no);

# this has good values
#addchartbubble(1, low, "O " + opicka + "\n" + "c " + zachodik  + "\n" + "m " +  midik, color.yellow, no);

# cond1 and 2 have n/a errors
#addchartbubble(1, low, "1 " + condition1 + "\n" + "2 " + condition2 + "\n" + "3 " + condition3 , color.yellow, no);

#addchartbubble(1, low, "c " + c + "\n" + "p " + porovnavacka , color.yellow, no);



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

# copied form my engulfing code, posted on here somewhere
input lookback = 100;

def totminvalue = 5;
# i have no idea what this should be. just a guess

# if while is used, fold loops as long as while statement is true
# when while becomes false, the loop stops, even if fold hasn't reached the highest count value

def barcnt = fold k = 1 to ( lookback + 1)
with p
  #  this looks for smaller bars before the current bar
  #  while (high > getvalue(high, k) and low < getvalue(low, k))

# this compares prev values of tot to the constant, totminvalue.
# it keeps looping as long as tot is smaller.
# if tot is bigger, the loop stops , and p value is transferred to barcnt, 
while ( getvalue(tot, k) < totminvalue )
do p + 1;

# barcnt will = the offset # , pointing back to the bar with the desired value of tot
def prev_tot = if barcnt < lookback then getvalue( tot, barcnt ) else 0;

#def bn = barnumber();
# display some variables for debugging
addchartbubble(1, low, bn + "\n" + tot + "\n" + barcnt + "\n" + prev_tot, color.yellow, no);

 

[joker12]

REF post #1

i must be missing something. i tried to put your code in a chart and add a loop at the end, but it causes errors on c = ask.

i added this in, which used to work in another study, but not now , this causes an error too ?
def bid1 = close(priceType = "Bid");
def ask1 = close(priceType = "Ask");

maybe tos changed how to read bid and ask in a chart ?

i added a fold loop after your code, to look at previous bars, to find when tot had a value greater than totminvalue.
i changed c =ask , to c = close


# copied form my engulfing code, posted on here somewhere
input lookback = 100;

def totminvalue = 5;
# i have no idea what this should be. just a guess

# if while is used, fold loops as long as while statement is true
# when while becomes false, the loop stops, even if fold hasn't reached the highest count value

def barcnt = fold k = 1 to (lookback + 1)
with p
# this looks for smaller bars before the current bar
# while (high > getvalue(high, k) and low < getvalue(low, k))
while ( getvalue(tot, k) < totminvalue )
do p + 1;

# barcnt will = the offset # , pointing back to the bar with the desired value of tot
def prev_tot = if barcnt < lookback then getvalue( tot, barcnt ) else 0;

def bn = barnumber();
# display some variables for debugging
addchartbubble(1, low, bn + "\n" + tot + "\n" + barcnt + "\n" + prev_tot, color.yellow, no);


================================================

if i replace def c = ask;
with this def c = close;
it doesn't have errors

it looks like tot has values of 1 or 2


here is my modified code, using close, instead of ask

def bn = BarNumber();
# lines_bidask_00
def bid1 = close(priceType = "Bid");
def ask1 = close(priceType = "Ask");
def Mark1 = close(priceType = "Mark");
def Last1 = close(priceType = "Last");


def opicka = open[1];
def zachodik = close[1];
#calculate 50% of candle
def midik = (opicka + zachodik) / 2;
#measure range of yesterday
def rangik = (zachodik - opicka) / opicka * 100;
def ran = if rangik < 8 then 0 else 10;
#compare last price with midcandle

#def c = ask;
#def porovnavacka = (ask / midik - 1) * 100;
#def c = ask1;
def c = close;
def porovnavacka = ( c / midik - 1) * 100;

#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;
def condition3 = ran == 10;
def fin = if condition3 then 8 else 0;
def tot = condition1 + condition2 + fin;
#plot z = tot;

# this shows errors for tot on all bars
#addchartbubble(1, low, tot , color.yellow, no);

# this has good values
#addchartbubble(1, low, "O " + opicka + "\n" + "c " + zachodik  + "\n" + "m " +  midik, color.yellow, no);

# cond1 and 2 have n/a errors
#addchartbubble(1, low, "1 " + condition1 + "\n" + "2 " + condition2 + "\n" + "3 " + condition3 , color.yellow, no);

#addchartbubble(1, low, "c " + c + "\n" + "p " + porovnavacka , color.yellow, no);



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

# copied form my engulfing code, posted on here somewhere
input lookback = 100;

def totminvalue = 5;
# i have no idea what this should be. just a guess

# if while is used, fold loops as long as while statement is true
# when while becomes false, the loop stops, even if fold hasn't reached the highest count value

def barcnt = fold k = 1 to ( lookback + 1)
with p
  #  this looks for smaller bars before the current bar
  #  while (high > getvalue(high, k) and low < getvalue(low, k))

# this compares prev values of tot to the constant, totminvalue.
# it keeps looping as long as tot is smaller.
# if tot is bigger, the loop stops , and p value is transferred to barcnt,
while ( getvalue(tot, k) < totminvalue )
do p + 1;

# barcnt will = the offset # , pointing back to the bar with the desired value of tot
def prev_tot = if barcnt < lookback then getvalue( tot, barcnt ) else 0;

#def bn = barnumber();
# display some variables for debugging
addchartbubble(1, low, bn + "\n" + tot + "\n" + barcnt + "\n" + prev_tot, color.yellow, no);

thank you.no idea about this error..in any case good for learning fold function..what is p there?did get it as I dont see any definition...

 

[joker12]

REF post #1

i must be missing something. i tried to put your code in a chart and add a loop at the end, but it causes errors on c = ask.

i added this in, which used to work in another study, but not now , this causes an error too ?
def bid1 = close(priceType = "Bid");
def ask1 = close(priceType = "Ask");

maybe tos changed how to read bid and ask in a chart ?

i added a fold loop after your code, to look at previous bars, to find when tot had a value greater than totminvalue.
i changed c =ask , to c = close


# copied form my engulfing code, posted on here somewhere
input lookback = 100;

def totminvalue = 5;
# i have no idea what this should be. just a guess

# if while is used, fold loops as long as while statement is true
# when while becomes false, the loop stops, even if fold hasn't reached the highest count value

def barcnt = fold k = 1 to (lookback + 1)
with p
# this looks for smaller bars before the current bar
# while (high > getvalue(high, k) and low < getvalue(low, k))
while ( getvalue(tot, k) < totminvalue )
do p + 1;

# barcnt will = the offset # , pointing back to the bar with the desired value of tot
def prev_tot = if barcnt < lookback then getvalue( tot, barcnt ) else 0;

def bn = barnumber();
# display some variables for debugging
addchartbubble(1, low, bn + "\n" + tot + "\n" + barcnt + "\n" + prev_tot, color.yellow, no);


================================================

if i replace def c = ask;
with this def c = close;
it doesn't have errors

it looks like tot has values of 1 or 2


here is my modified code, using close, instead of ask

def bn = BarNumber();
# lines_bidask_00
def bid1 = close(priceType = "Bid");
def ask1 = close(priceType = "Ask");
def Mark1 = close(priceType = "Mark");
def Last1 = close(priceType = "Last");


def opicka = open[1];
def zachodik = close[1];
#calculate 50% of candle
def midik = (opicka + zachodik) / 2;
#measure range of yesterday
def rangik = (zachodik - opicka) / opicka * 100;
def ran = if rangik < 8 then 0 else 10;
#compare last price with midcandle

#def c = ask;
#def porovnavacka = (ask / midik - 1) * 100;
#def c = ask1;
def c = close;
def porovnavacka = ( c / midik - 1) * 100;

#3 conditions..best result is 3 false
def condition1 = porovnavacka > 0;
def condition2 = porovnavacka < 3;
def condition3 = ran == 10;
def fin = if condition3 then 8 else 0;
def tot = condition1 + condition2 + fin;
#plot z = tot;

# this shows errors for tot on all bars
#addchartbubble(1, low, tot , color.yellow, no);

# this has good values
#addchartbubble(1, low, "O " + opicka + "\n" + "c " + zachodik  + "\n" + "m " +  midik, color.yellow, no);

# cond1 and 2 have n/a errors
#addchartbubble(1, low, "1 " + condition1 + "\n" + "2 " + condition2 + "\n" + "3 " + condition3 , color.yellow, no);

#addchartbubble(1, low, "c " + c + "\n" + "p " + porovnavacka , color.yellow, no);



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

# copied form my engulfing code, posted on here somewhere
input lookback = 100;

def totminvalue = 5;
# i have no idea what this should be. just a guess

# if while is used, fold loops as long as while statement is true
# when while becomes false, the loop stops, even if fold hasn't reached the highest count value

def barcnt = fold k = 1 to ( lookback + 1)
with p
  #  this looks for smaller bars before the current bar
  #  while (high > getvalue(high, k) and low < getvalue(low, k))

# this compares prev values of tot to the constant, totminvalue.
# it keeps looping as long as tot is smaller.
# if tot is bigger, the loop stops , and p value is transferred to barcnt,
while ( getvalue(tot, k) < totminvalue )
do p + 1;

# barcnt will = the offset # , pointing back to the bar with the desired value of tot
def prev_tot = if barcnt < lookback then getvalue( tot, barcnt ) else 0;

#def bn = barnumber();
# display some variables for debugging
addchartbubble(1, low, bn + "\n" + tot + "\n" + barcnt + "\n" + prev_tot, color.yellow, no);

trying apply this fold function in my another script..could you pls advice if this should do what I am looking for? : look for 40 previous candles and if they have same high (with some space define in if) as current high , raise value of x by one..:
"
def x=0;
def sracka= fold k =2 to 40 do if(h/high[k]>0.998 && h/high[k]<1.0025) then x+1 else double.nan;
"
its not throwing me any errors but a lot of loadings..so hope its just because of weekend

 

[halcyonguy]

thank you.no idea about this error..in any case good for learning fold function..what is p there?did get it as I dont see any definition...

p is a temporary variable, to hold the values from each time the do code line is evaluated.
when the fold is done, the value in p , is passed on to t
can define a starting value for p , by setting it equal to something. p = 1. just p is defaulted to be = 0.

def t = fold i = 1 to 10
with p = 1
while ( if stuff is true keep doing loop) (optional)
do ( do stuff )

some other info on fold
https://usethinkscript.com/threads/...onfirming-a-thinkscript-line.6662/#post-64430

 

[halcyonguy]

trying apply this fold function in my another script..could you pls advice if this should do what I am looking for? : look for 40 previous candles and if they have same high (with some space define in if) as current high , raise value of x by one..:
"
def x=0;
def sracka= fold k =2 to 40 do if(h/high[k]>0.998 && h/high[k]<1.0025) then x+1 else double.nan;
"
its not throwing me any errors but a lot of loadings..so hope its just because of weekend

this should look at 38 previous bars and compare the past high's to h. if a comparison is true, then increment a counter

def sracka= fold k =2 to 40
with x
do x + ( if  ((h /  getvalue(high, k) > 0.998 ) and  (h / getvalue(high, k) <1.0025) ) then  1 else 0 );

input test1 = yes;
addchartbubble(test1, low, sracka , color.yellow, no);

double check the ( ) placement.... i think i have it correct.