mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-08-01 19:27:44 +00:00
Miha Kralj
86fe32a682
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com> Co-authored-by: aider (openrouter/anthropic/claude-sonnet-4) <aider@aider.chat> Co-authored-by: Warp <agent@warp.dev>
48 lines
1.7 KiB
Plaintext
48 lines
1.7 KiB
Plaintext
// The MIT License (MIT)
|
|
// © mihakralj
|
|
//@version=6
|
|
indicator("Chaikin Money Flow (CMF)", "CMF", overlay=false)
|
|
|
|
//@function Calculates the Chaikin Money Flow (CMF), measuring buying and selling pressure through price and volume
|
|
//@doc https://github.com/mihakralj/pinescript/blob/main/indicators/volume/cmf.md
|
|
//@param len Lookback period length (default: 20)
|
|
//@param src_high The high price (default: built-in high)
|
|
//@param src_low The low price (default: built-in low)
|
|
//@param src_close The close price (default: built-in close)
|
|
//@param src_vol The volume (default: built-in volume)
|
|
//@returns float CMF value between -1 and 1
|
|
cmf(len = 20, src_high = high, src_low = low, src_close = close, src_vol = volume) =>
|
|
// Validate parameters
|
|
if len < 1
|
|
runtime.error("Length must be >= 1")
|
|
|
|
// Calculate Money Flow Multiplier
|
|
float mfm = 0.0
|
|
if not na(src_high) and not na(src_low) and not na(src_close)
|
|
mfm := (src_close - src_low) - (src_high - src_close)
|
|
mfm := src_high != src_low ? mfm / (src_high - src_low) : 0.0
|
|
|
|
// Calculate Money Flow Volume
|
|
float mfv = na(src_vol) ? 0.0 : mfm * src_vol
|
|
|
|
// Calculate CMF
|
|
var float sum_mfv = 0.0
|
|
var float sum_vol = 0.0
|
|
|
|
// Update rolling sums
|
|
sum_mfv := sum_mfv + mfv - (bar_index >= len ? mfv[len] : 0)
|
|
sum_vol := sum_vol + src_vol - (bar_index >= len ? src_vol[len] : 0)
|
|
|
|
// Calculate CMF value
|
|
float cmf_value = sum_vol != 0 ? sum_mfv / sum_vol : 0.0
|
|
cmf_value
|
|
|
|
// ---------- Inputs ----------
|
|
i_length = input.int(20, "Length", minval=1)
|
|
|
|
// ---------- Calculations ----------
|
|
cmf_val = cmf(i_length)
|
|
|
|
// ---------- Plotting ----------
|
|
plot(cmf_val, "CMF", color=color.yellow, linewidth=2)
|