Код: Выделить всё
//@version=5
indicator("Cumulative Volume Delta", "CVD", format=format.volume)
anchorInput = input.timeframe("1D", "Anchor period")
lowerTimeframeTooltip = "The indicator scans lower timeframe data to approximate up and down volume used in the delta calculation. By default, the timeframe is chosen automatically. These inputs override this with a custom timeframe.
\n\nHigher timeframes provide more historical data, but the data will be less precise."
useCustomTimeframeInput = input.bool(false, "Use custom timeframe", tooltip = lowerTimeframeTooltip)
lowerTimeframeInput = input.timeframe("1", "Timeframe")
upAndDownVolume() =>
posVol = 0.0
negVol = 0.0
var isBuyVolume = true
switch
close > open => isBuyVolume := true
close < open => isBuyVolume := false
close > close[1] => isBuyVolume := true
close < close[1] => isBuyVolume := false
if isBuyVolume
posVol += volume
else
negVol -= volume
posVol + negVol
var lowerTimeframe = switch
useCustomTimeframeInput => lowerTimeframeInput
timeframe.isseconds => "1S"
timeframe.isintraday => "1"
timeframe.isdaily => "5"
=> "60"
diffVolArray = request.security_lower_tf(syminfo.tickerid, lowerTimeframe, upAndDownVolume())
getHighLow(arr) =>
float cumVolume = na
float maxVolume = na
float minVolume = na
for item in arr
cumVolume := nz(cumVolume) + item
maxVolume := math.max(nz(maxVolume), cumVolume)
minVolume := math.min(nz(minVolume), cumVolume)
[maxVolume, minVolume, cumVolume]
[maxVolume, minVolume, lastVolume] = getHighLow(diffVolArray)
var cumulLastVolume = 0.0
anchorChange = timeframe.change(anchorInput) or barstate.isfirst
cumulOpenVolume = anchorChange and not na(lastVolume) ? 0.0 : cumulLastVolume[1]
cumulMaxVolume = cumulOpenVolume + maxVolume
cumulMinVolume = cumulOpenVolume + minVolume
cumulLastVolume := cumulOpenVolume + lastVolume
col = cumulLastVolume >= cumulOpenVolume ? color.teal : color.red
hline(0)
plotcandle(cumulOpenVolume, cumulMaxVolume, cumulMinVolume, cumulLastVolume, "CVD", color = col, bordercolor = col, wickcolor = col)
var cumVol = 0.
cumVol += nz(volume)
if barstate.islast and cumVol == 0
runtime.error("The data vendor doesn't provide volume data for this symbol.")
Подробнее здесь: https://stackoverflow.com/questions/783 ... lume-delta