Leavitt Convolution [CC]

// Copyright (c) 2019-present, Franklin Moormann (cheatcountry)
// Leavitt Convolution [CC] script may be freely distributed under the MIT license.
// ------------------------------------------------------------------------------------------------
// Original author:  cheatcountry
// Original title:   Leavitt Convolution [CC]
// Licence:          MIT (the header above is the original notice, kept verbatim)
// Pine version:     5
// Fetched:          2026-10-12
// Ported to FloScript by FloSignals; modifications under MPL-2.0.
// Converter:        @flosignals/floscript 0.1.0, strict mode, score 100/100
// ------------------------------------------------------------------------------------------------
//@floscript=1
//@version=5
indicator('Leavitt Convolution [CC]', overlay=true)

float inp = input.source(title="Source", defval=hlcc4)
string res = input.timeframe(title="Resolution", defval="")
bool rep = input.bool(title="Allow Repainting?", defval=false)
bool bar = input.bool(title="Allow Bar Color Change?", defval=false)
float src = inp[rep ? 0 : barstate.isrealtime ? 1 : 0][rep ? 0 : barstate.isrealtime ? 0 : 1]
fastLength = input.int(title="FastLength", defval=14, minval=1)
slowLength = input.int(title="SlowLength", defval=30, minval=1)

leavittProjection(float src, int length) =>
    float result = ta.linreg(src, length, -1)

leavittConvolution(float src, int length) =>
    int sqrtLength = math.floor(nz(math.sqrt(length)))
    float result = ta.linreg(leavittProjection(src, length), sqrtLength, -1)

float fastConv = leavittConvolution(src, fastLength)
float slowConv = leavittConvolution(src, slowLength)

float slo = fastConv - slowConv
int sig = slo > 0 ? (slo > nz(slo[1]) ? 2 : 1) : slo < 0 ? (slo < nz(slo[1]) ? -2 : -1) : 0
alertcondition(ta.crossover(sig, 1), 'Strong Buy Signal', 'Strong Bullish Change Detected')
alertcondition(ta.crossunder(sig, -1), 'Strong Sell Signal', 'Strong Bearish Change Detected')
alertcondition(ta.crossover(sig, 0), 'Buy Signal', 'Bullish Change Detected')
alertcondition(ta.crossunder(sig, 0), 'Sell Signal', 'Bearish Change Detected')
alertcondition(ta.crossover(sig, 0) or ta.crossover(sig, 1), "All Buy Signals", "Any Bullish Change Detected")
alertcondition(ta.crossunder(sig, 0) or ta.crossunder(sig, -1), "All Sell Signals", "Any Bearish Change Detected")
color lcColor = sig > 1 ? color.green : sig > 0 ? color.lime : sig < -1 ? color.maroon : sig < 0 ? color.red : color.white
barcolor(bar ? lcColor : na)
plot(fastConv, title='FastConv', color=lcColor, linewidth=2)
plot(slowConv, title='SlowConv', color=chart.fg_color, linewidth=1)

This file is under the MIT License; it is a port of the original by cheatcountry, with the original licence header kept and the changes made for FloScript noted in the file.

• v22026-10-14

  Library refresh 2026-10-14

• v12026-10-12

  Library refresh 2026-10-12