How To Automate Script Writing

[bigmit2011]

Hi,

Is there a way to iterate and create multiple conditions, programmatically?
For example I am interested in something as follows in one script:


Price Change Close is at least -8 percent less than 5 days ago

or

Price Change Close is at least -8 percent less than 6 days ago

or

Price Change Close is at least -8 percent less than 7 days ago

etc for a range of days I choose.

Is there a programmatic way to create multiple conditions via iteration?

So with Thinkscript, I imagine this statement

Price Change Close is at least -8 percent less than 5 days ago

translates as follows:

close[5] < .92 * close

So instead of manually writing out the conditions, I wonder if there is a programmatic way to do so.

Thank you.

 

[MerryDay]

So instead of manually writing out the conditions, I wonder if there is a programmatic way to do so.

Scripts need to be manually written out in ThinkOrSwim.

Some members favor using code editors.
An editor will automatically add parentheses, etc…
Editors also makes it immeasurably easier to replicate and mass replace lines.

Everybody has their favorite.
VS Code has Thinkscript extension (read more here: https://usethinkscript.com/threads/closest-related-programming-language-to-thinkscript.7218/)
Atom is a free app that members seem to like.

 

[halcyonguy]

Hi,

Is there a way to iterate and create multiple conditions, programmatically?
For example I am interested in something as follows in one script:


Price Change Close is at least -8 percent less than 5 days ago

or

Price Change Close is at least -8 percent less than 6 days ago

or

Price Change Close is at least -8 percent less than 7 days ago

etc for a range of days I choose.

Is there a programmatic way to create multiple conditions via iteration?

So with Thinkscript, I imagine this statement

Price Change Close is at least -8 percent less than 5 days ago

translates as follows:

close[5] < .92 * close

So instead of manually writing out the conditions, I wonder if there is a programmatic way to do so.

Thank you.

maybe it depends what you want for a result.
if you are asking if there are loops in thinkscript, yes there is.
if you want to look at several formulas and end up with 1 number, then a fold loop may work.
a fold loop can be used to iterate through a formula, each time with a different number, a counter, between the start and stop numbers. the counting variable can be used as an offset, to look at different bars, before or after the current bar.

using this as an example,
close[5] < .92 * close

this will look at the past 5 bars to 22 bars. if the previous bar close is less than 98% of the current close, then it keeps looping. on the first time it is false, it stops looping. it counts how many consecutive times it is true.

def x = fold i = 5 to 22
  with p
  while getvalue(close, i) < ( 0.92 * close)
  do p + 1;

addchartbubble(1, low*0.992, x, color.yellow, no);

x will equal the offset number to the last bar it was true.


https://tlc.thinkorswim.com/center/reference/thinkScript/Reserved-Words/fold

 

[bigmit2011]

maybe it depends what you want for a result.
if you are asking if there are loops in thinkscript, yes there is.
if you want to look at several formulas and end up with 1 number, then a fold loop may work.
a fold loop can be used to iterate through a formula, each time with a different number, a counter, between the start and stop numbers. the counting variable can be used as an offset, to look at different bars, before or after the current bar.

using this as an example,
close[5] < .92 * close

this will look at the past 5 bars to 22 bars. if the previous bar close is less than 98% of the current close, then it keeps looping. on the first time it is false, it stops looping. it counts how many consecutive times it is true.

def x = fold i = 5 to 22
  with p
  while getvalue(close, i) < ( 0.92 * close)
  do p + 1;

addchartbubble(1, low*0.992, x, color.yellow, no);

x will equal the offset number to the last bar it was true.


https://tlc.thinkorswim.com/center/reference/thinkScript/Reserved-Words/fold

Thank you.
It possible to combine results (maybe to an array or so).

For example I want to get a list of stocks that are 15% greater than 15-45 days prior.
So I would need to loop from 15-45, and then add the scan results of each loop to some sort of list/array and then plot that total list.

 

[mashume]

Thank you.
It possible to combine results (maybe to an array or so).

For example I want to get a list of stocks that are 15% greater than 15-45 days prior.
So I would need to loop from 15-45, and then add the scan results of each loop to some sort of list/array and then plot that total list.

If you're scanning, you can create the first filter and save the scan results as a dynamic list. Then create the second filter and scan within the first saved dynamic list. That is, if you mean to be subsetting the first list with the second filter.

-mashume

 

[halcyonguy]

Thank you.
It possible to combine results (maybe to an array or so).

For example I want to get a list of stocks that are 15% greater than 15-45 days prior.
So I would need to loop from 15-45, and then add the scan results of each loop to some sort of list/array and then plot that total list.

i'm guessing from your last post that a watchlist, that gets a list of stocks from a saved scan, may do what you want.

i don't use scans, so i am not sure if the code below will work.
maybe someone here can verify it.
---------------------------

make a scan and set it to day.
add this code in the code window.

# stocks that are 15% greater than 15-45 days prior.
def per = 15
def x = highest(close[15] , (45-15) )
plot y = ( close > ((1+(per*100))*x);

save scan
----
make a watchlist
pick the saved scan to source data to the watchlist

---------------------------
may i make an observation?

you keep guessing at what programming functions might work. iterations, loop, fold, arrays,.... before you list a complete set of rules you want a process/study to follow. doing this may cause others and yourself, to focus on something that may not be the best.

try to create a set of rules, that you want a study to follow. then mention what you want to see on a chart, or in a list.