How To Scan On Past Dates

[VR555]

I'm struggling to figure how to use this scan
https://usethinkscript.com/threads/useful-indicators-for-swing-trading-with-thinkorswim.15068/
on past dates. Is there a way to 'look back'?

 

[antwerks]

I'm struggling to figure how to use this scan on past dates. Is there a way to 'look back'?

WOW great question and I see where you are going with that - I do not know if TOS has that capability. A good question for one of the TOS experts.... @merryDay

 

[VR555]

@antwerks - Here’s what I got from a Google search, and since I don’t have good coding skills, I’m hoping that you can take this example and apply it to your scan that will allow me to look at past dates:

Select thinkScript Editor instead of the wizard

Use array indexing to tell the scanner how many bars in the past to look at. For example, close[20]represents the closing price exactly 20 days ago. [, 2]

Example Script (Scanning for a 52-week high 20 days ago):

thinkscript
plot Scan = high[20] == Highest(high[20], 252);

 

[antwerks]

@antwerks - Here’s what I got from a Google search, and since I don’t have good coding skills, I’m hoping that you can take this example and apply it to your scan that will allow me to look at past dates:

Select thinkScript Editor instead of the wizard

Use array indexing to tell the scanner how many bars in the past to look at. For example, close[20]represents the closing price exactly 20 days ago. [, 2]

Example Script (Scanning for a 52-week high 20 days ago):

thinkscript
plot Scan = high[20] == Highest(high[20], 252);

let me play with that- thanks