Indicatore Funzione Truncate to decimals example

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © Maurizio-Ciullo

// https://www.tradingcode.net/tradingview/truncate-numbers/

//@version=5
indicator(title="Indicatore Funzione Truncate to decimals example", overlay=true)

// Truncate() truncates a given number to the specified
// number of decimals.
Truncate(number, decimals) =>
    factor = math.pow(10, decimals)
    int(number * factor) / factor

// Make an input that sets the number of decimals to truncate to
decimalAmount = input.int(1, title="Number of Decimals", minval=0)

// Calculate the Simple Moving Average and its truncated variant
smaValue     = ta.sma(close, 20)
smaTruncated = Truncate(smaValue, decimalAmount)

// Plot the SMA and its truncated value
plot(smaValue, color=color.purple, linewidth=2, title="SMA")
plot(smaTruncated, color=color.yellow, linewidth=2,
     title="SMA Truncated")

// Every 30 price bars, make a label that shows the
// SMA value and its truncated to decimals version
if bar_index % 30 == 0
    label.new(x=bar_index, y=smaValue, style=label.style_label_up,
         color=#f2f2f2, textcolor=color.black,
         text="SMA: " + str.tostring(smaValue, "0.000") +
             "\nTruncated: " + str.tostring(smaTruncated, "0.000"))