
Strategi ini ialah sistem perdagangan lanjutan berdasarkan tahap sokongan dan rintangan yang digabungkan dengan saluran aliran dinamik dan ciri pengurusan risiko. Strategi ini mengenal pasti tahap sokongan dan rintangan utama dengan menganalisis titik turun naik harga tertinggi dan terendah dalam tempoh tinjauan semula tertentu, dan menggunakan parameter lebar saluran untuk membina julat dagangan dinamik, memberikan pedagang gambaran yang jelas tentang struktur pasaran dan isyarat dagangan yang tepat.
Logik teras strategi merangkumi elemen utama berikut:
Strategi ini menggabungkan konsep utama dalam analisis teknikal - tahap sokongan dan rintangan serta saluran aliran - untuk membina sistem perdagangan dengan logik yang ketat dan risiko yang boleh dikawal. Kelebihan strategi terletak pada kebolehsuaian dan pengurusan risiko yang kukuh, tetapi peniaga masih perlu berhati-hati melaraskan parameter mengikut keadaan pasaran dan toleransi risiko peribadi. Melalui arahan pengoptimuman yang dicadangkan, strategi boleh dipertingkatkan lagi dan dibangunkan menjadi sistem perdagangan yang lebih komprehensif dan mantap.
/*backtest
start: 2019-12-23 08:00:00
end: 2025-01-04 08:00:00
period: 1d
basePeriod: 1d
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=5
strategy("Support and Resistance with Trend Lines and Channels", overlay=true)
// Inputs
lookback = input.int(20, title="Lookback Period for Support/Resistance", minval=1)
channelWidth = input.float(0.01, title="Channel Width (%)", minval=0.001) / 100
startDate = input(timestamp("2023-01-01 00:00"), title="Backtesting Start Date")
endDate = input(timestamp("2023-12-31 23:59"), title="Backtesting End Date")
// Check if the current bar is within the testing range
inTestingRange = true
// Support and Resistance Levels
supportLevel = ta.lowest(low, lookback) // Swing low (support)
resistanceLevel = ta.highest(high, lookback) // Swing high (resistance)
// Trend Lines and Channels
var line supportLine = na
var line resistanceLine = na
var line upperChannelLine = na
var line lowerChannelLine = na
// Calculate channel levels
upperChannel = resistanceLevel * (1 + channelWidth) // Upper edge of channel
lowerChannel = supportLevel * (1 - channelWidth) // Lower edge of channel
// Create or update the support trend line
// if na(supportLine)
// supportLine := line.new(bar_index, supportLevel, bar_index + 1, supportLevel, color=color.green, width=2, extend=extend.right)
// else
// line.set_y1(supportLine, supportLevel)
// line.set_y2(supportLine, supportLevel)
// // Create or update the resistance trend line
// if na(resistanceLine)
// resistanceLine := line.new(bar_index, resistanceLevel, bar_index + 1, resistanceLevel, color=color.red, width=2, extend=extend.right)
// else
// line.set_y1(resistanceLine, resistanceLevel)
// line.set_y2(resistanceLine, resistanceLevel)
// // Create or update the upper channel line
// if na(upperChannelLine)
// upperChannelLine := line.new(bar_index, upperChannel, bar_index + 1, upperChannel, color=color.blue, width=1, style=line.style_dashed, extend=extend.right)
// else
// line.set_y1(upperChannelLine, upperChannel)
// line.set_y2(upperChannelLine, upperChannel)
// // Create or update the lower channel line
// if na(lowerChannelLine)
// lowerChannelLine := line.new(bar_index, lowerChannel, bar_index + 1, lowerChannel, color=color.purple, width=1, style=line.style_dashed, extend=extend.right)
// else
// line.set_y1(lowerChannelLine, lowerChannel)
// line.set_y2(lowerChannelLine, lowerChannel)
// Buy Condition: When price is near support level
buyCondition = close <= supportLevel * 1.01 and inTestingRange
if buyCondition
strategy.entry("Buy", strategy.long)
// Stop Loss and Take Profit
stopLossPercentage = input.float(1.5, title="Stop Loss Percentage", minval=0.0) / 100
takeProfitPercentage = input.float(3.0, title="Take Profit Percentage", minval=0.0) / 100
var float longStopLoss = na
var float longTakeProfit = na
if strategy.position_size > 0
longStopLoss := strategy.position_avg_price * (1 - stopLossPercentage)
longTakeProfit := strategy.position_avg_price * (1 + takeProfitPercentage)
strategy.exit("Exit Buy", "Buy", stop=longStopLoss, limit=longTakeProfit)
// Visualize Entry, Stop Loss, and Take Profit Levels
var float entryPrice = na
if buyCondition
entryPrice := close
if not na(entryPrice)
label.new(bar_index, entryPrice, text="Entry: " + str.tostring(entryPrice, "#.##"), style=label.style_label_up, color=color.green, textcolor=color.white)
if strategy.position_size > 0
line.new(bar_index, longStopLoss, bar_index + 1, longStopLoss, color=color.red, width=1, extend=extend.right)
line.new(bar_index, longTakeProfit, bar_index + 1, longTakeProfit, color=color.blue, width=1, extend=extend.right)
// Risk-to-Reward Ratio (Optional)
if not na(entryPrice) and not na(longStopLoss) and not na(longTakeProfit)
riskToReward = (longTakeProfit - entryPrice) / (entryPrice - longStopLoss)
label.new(bar_index, entryPrice, text="R:R " + str.tostring(riskToReward, "#.##"), style=label.style_label_up, color=color.yellow, textcolor=color.black, size=size.small)