有没有办法在 Pine Script 中获得当天第一根和第二根蜡烛的 OHLC

Question

I want the OHLC data of the first and second candle of the day in 5 minute time frame. That is, OHLC of 1st 5 min candle and OHLC of 2nd 5 min candle. I have tried the following.

is_newbar(res) =>
    t = time(res)
    change(t) != 0 ? 1 : 0

is_newbar1(res) =>
    t = time(res)
    change(t[1]) != 0 ? 1 : 0

newbar = is_newbar("D")
newbar1 = is_newbar1("D")

var float s1 = na
var float s2 = na
var float s3 = na
var float s4 = na
if newbar
    s1 := low
    s2 := high
    s3 := close
    s4 := open

var float s11 = na
var float s12 = na
var float s13 = na
var float s14 = na
if newbar1
    s11 := low
    s12 := high
    s13 := close
    s14 := open

After getting these values I am coding for range breakouts like if s13>s3 then do something. The problem is, in real-time it not only takes the 1st two candle values, but considers every candle OHLC and tries to match the if condition everytime. I want it to execute once and display the result. Please help me out.

Answer 1

Hi @Prasanna Kumar S R,

Instead of using an if and save the value into a variable, try to use "valuewhen". I have been working on a strategy where I have to save the first handle high. I used the following code '''d = valuewhen( (is_first), high, 0 )''' when i plot the "d" its constant till end of the day.

Answer 2

Here is what I usually use for selling and buying at a specific time. I used this script for backtesting a BTST strategy. Since you want to trigger the buy/sell actions at a specific time you can actually provide the hour and minutes in the scripts. All you need to make sure is that there is a close point at your desired point, basically, keep the resolution smaller than 5 mins and can give a candle at 5 min interval. (in your case it is 1 min and 5 mins candles)

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © SaiyadRasikh
//@version=4
strategy("Stackoverflow_Answer", overlay = true)

// Allowing only Long entries
strategy.risk.allow_entry_in(strategy.direction.long)

//Considering Nifty as the Index
var s_close = 0.0

if (hour(time) == 09 and minute(time) == 20)
    s_close := close
    
buy = s_close > s_close[1] //Condition where second candleis close is higher than first candle close, Then enter the trade
sell = s_close < s_close[1]

strategy.entry("Long", strategy.long, when = buy,comment="Buy")
strategy.entry("Short", strategy.short, when = sell,comment="Sell")

You will get something like this with the above code as a plot.