I wonder if it would be possible to convert the Pinescript code here below to LUA.
I'm backtesting this indicator and apparently it would have kept me out of several bad trades, so I want to do some forward testing on FXCM Tradestation
Thanks in advance!
//@version=4
study("Vortex Trend Tracker")
// INPUT VARIABLES FOR VORTEX:
vortexLen = input(30, title="Length for Vortex", minval=1)
emaLen = input(10, title="Length of Positive and Negative EMA's", type=input.integer, minval=1)
colorBars = input(true, title="Color Price Bars Based on Vortex?")
plotVLines = input(false, title="Plot VI+ and VI- Lines?")
// VORTEX CALCULATION:
//Returns positive and negative trendlines.
vortex(posSum, negSum, vLen)=>
tRange = sum(atr(1), vLen)
vmPlus = posSum / tRange
vmNeg = negSum / tRange
[vmPlus, vmNeg]
[vPlus, vNeg] = vortex(sum(abs(high - low[1]), vortexLen), sum(abs(low - high[1]), vortexLen), vortexLen)
plusEMA = ema(vPlus, emaLen)
negEMA = ema(vNeg, emaLen)
vDiff = abs(plusEMA - negEMA)
// PLOTTING:
var color vColor = na
vColor := plusEMA > negEMA and plusEMA >= plusEMA[1] ? #1b5e20 : plusEMA > negEMA and plusEMA < plusEMA[1] ? #a5d6a7 : negEMA >= plusEMA and negEMA > negEMA[1] ? #b71c1c : negEMA > plusEMA and negEMA < negEMA[1] ? #c76a72 : nz(vColor[1])
plot(vDiff, style=plot.style_histogram, color=vColor, linewidth=3, transp=0)
plot(plotVLines ? plusEMA : na, title="VI +", color=color.green, linewidth=2)
plot(plotVLines ? negEMA : na, title="VI -", color=color.red, linewidth=2)
barcolor(colorBars ? vColor : na)
