tradingview close -close[1] accuracy

Question

I wrote a Pine script as follow for considering RSI indicator. In this code for calculating RSI, need to subtract closing price of the two neighboring candles (close- close1). As you can see in the below image the pine script close-close1= 0.10 while 97.42-97.31=0.11!. This difference come from what?

for calculating RMA the Pine script use sum1 please explain how this value is computed with an example.

Let me assume we have the following closing price data for 3 days. exactly what happens has occurred for computing RSI.

  // @version=4

    study(title = "MyRSI", overlay=true)

   rolling_moving_average(data, length) =>
       alpha =  length 
       sum = 0.0
       for index = length to 0
          if sum == 0.0
             sum := data[index]
          else
            sum := (data[index] + (alpha - 1) * nz(sum[1]))/alpha 

    MyRSI(data, length) =>
       u = max(data - data[1], 0.0)
       d = max(data[1] - data, 0.0)
       rgain = rolling_moving_average(u,length)
       rloss = rolling_moving_average(d,length)
       rs = rgain / rloss 
       rsi = 100 - 100 / ( 1 + rs )
       rsi



    MyRmagain(data, length) =>
       u = max(data - data[1], 0.0)
       d = max(data[1] - data, 0.0)
       //rgain = rolling_moving_average(u,length)
       u  


    MyRmaloss(data, length) =>
       u = max(data - data[1], 0.0)
       d = max(data[1] - data, 0.0)
       //rloss = rolling_moving_average(d,length)
       d

    //atr2 = MyRmagain(close, 3)
    plot(MyRmagain(close, 3), title="mm[1]", color=#00FF00)
    //plot(close)
    //atr2 = MyRmaloss(close, 3)
    plot(MyRmaloss(close, 3), title="mm[1]", color=#FF0000)
    plot(close,"close",#0000FF)
    plot(close[1],"close",#ff00FF)
    //atr2 := rolling_moving_average(close, 14)
    //plot(atr2, title="EMAUP2", color=#FF00FF)

    //atr = rma(close, 14)
    //plot(atr, title="EMAUP", color=#FF00FF)
    //plot(MyRSI(close, 14))

Michel_T. Michel_T. · Accepted Answer · 2020-01-11T13:29:13

It's a problem of precision. DXY's default is two numbers after the point whereas there could be more of number after the point:

To fix thix behaviour, change the precision in the settings:

That should help.

tradingview close -close[1] accuracy

1 Answers