Created
December 14, 2017 03:52
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Log-space Ichimoku Indicator
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| // Just saved for posterity and as a backup. All credit goes to @fskrypt. | |
| // Use right in Tradingview via https://www.tradingview.com/script/Vj0K8w14-Log-space-Ichimoku-Cloud/ | |
| // | |
| //@version=3 | |
| study(title="Log Ichimoku Cloud", shorttitle="Log Ichimoku", overlay=true) | |
| xlowest(src, len) => | |
| x = src | |
| for i = 1 to len - 1 | |
| v = src[i] | |
| if (na(v)) | |
| break | |
| x := min(x, v) | |
| x | |
| xhighest(src, len) => | |
| x = src | |
| for i = 1 to len - 1 | |
| v = src[i] | |
| if (na(v)) | |
| break | |
| x := max(x, v) | |
| x | |
| drop1st(src) => | |
| x = na | |
| x := na(src[1]) ? na : src | |
| conversionPeriods = input(9, minval=1, title="Conversion Line Periods"), | |
| basePeriods = input(26, minval=1, title="Base Line Periods") | |
| laggingSpan2Periods = input(52, minval=1, title="Lagging Span 2 Periods"), | |
| displacement = input(26, minval=1, title="Displacement") | |
| showLagging = input(false, "Show Lagging Span") | |
| loglows = log(drop1st(low)) | |
| loghighs = log(drop1st(high)) | |
| donchian(len) => | |
| avg(xlowest(loglows, len), xhighest(loghighs, len)) | |
| conversionLine = donchian(conversionPeriods) | |
| baseLine = donchian(basePeriods) | |
| leadLine1 = avg(conversionLine, baseLine) | |
| leadLine2 = donchian(laggingSpan2Periods) | |
| plot(exp(conversionLine), color=#0496ff, title="Conversion Line") | |
| plot(exp(baseLine), color=#991515, title="Base Line") | |
| plot(showLagging ? close : na, offset = -displacement, color=#459915, title="Lagging Span") | |
| p1 = plot(exp(leadLine1), offset = displacement, color=green, title="Lead 1") | |
| p2 = plot(exp(leadLine2), offset = displacement, color=red, title="Lead 2") | |
| fill(p1, p2, color = leadLine1 > leadLine2 ? green : red) |
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