CODEWITHSUNDEEP
pine-scripttrading
Mārtiņš Līgotnis
Mārtiņš Līgotnis

Reputation: 7

How to plot conditionally based on previous plot Pine Script

I'm making simple Swing High and Swing Low finder/alert and everything works grate, except there are a lot of cases that Swing High comes after another Swing high.

Logic is simple - a swing high is defined if two candles before have been lower than this one and two candles after are lower as well

What I want to achieve is to plot swing high only if previous plot has not been swing high.

Here will be the code

//@version=4
study("Swing Point Finder")

hhCondition = high[4] < high[2] and high[3] < high[2] and high[1] < high[2] and high < high[2]
llCondition = low[4] > low[2] and low[3] > low[2] and low[1] > low[2] and low > low[2]


plot(hhCondition ? 1 : 0, "Swing High found", color.green, offset = -2)
plot(llCondition ? 1 : 0, "Swing Low found", color.red, offset = -2)

Upvotes: 0

Views: 6473

Answers (2)

Andr&#233;
Andr&#233;

Reputation: 470

yea good catch, I've run into this same issue in multiple scripts I've written.

What'd I would suggest here is creating a variable that tracks all pivot points.

isPivot == hhCondition or llCondition

Then, on a new pivot, compare it against the previous one. something like this for example:

plotThisHigh = hhCondition
if (hhCondition)
    sameDirection = valuewhen(isPivot, hhCondition, 0)
    plotThisHigh := sameDirection ? false : true

duplicate this for checking previous pivot lows as well. I'd recommend using a different variable for plotting (plotThisHigh as opposed to resassigning hhCondition) because if there are say three hhConditions in a row (with no llConditions in between) then if you reassign hhCondition the logic will no longer work. does that make sense?

I've written more details in this blog post if you need...hope it helps https://marketscripters.com/how-to-work-with-pivots-in-pine-script/

Upvotes: 0

alexgrover
alexgrover

Reputation: 1043

Maybe that you could try something like this: 

plot(hhCondition and not hhCondition[1] ? 1 : 0, "Swing High found", color.green, offset = -2)

Upvotes: 0

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