mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-07-27 17:27:43 +00:00
Miha Kralj
27 lines
915 B
Plaintext
27 lines
915 B
Plaintext
// Licensed under the Apache License, Version 2.0
|
|
// © mihakralj
|
|
//@version=6
|
|
indicator("Negative Volume Index (NVI)", "NVI", overlay=false)
|
|
|
|
//@function Calculates Negative Volume Index, tracks price changes on days with lower volume
|
|
//@param src Price series to use for calculation
|
|
//@param vol Volume series
|
|
//@param start_value Starting value for NVI (typically 100 or 1000)
|
|
//@returns float The NVI value
|
|
nvi(series float src, series float vol = volume, simple float start_value = 100.0) =>
|
|
var float nvi_value = start_value
|
|
if not (na(src) or na(vol) or na(src[1]) or na(vol[1]) or src[1] == 0.0 or vol[1] <= 0.0) and vol < vol[1]
|
|
nvi_value := nvi_value * src / src[1]
|
|
nvi_value
|
|
|
|
// ---------- Main Calculation ----------
|
|
|
|
// Parameters
|
|
src = input.source(close, "Price Source")
|
|
|
|
// Calculations
|
|
nvi_line = nvi(src, volume)
|
|
|
|
// Plot
|
|
plot(nvi_line, "NVI", color=color.yellow, linewidth=2)
|