เริ่มต้นใช้งาน

//@version=6
// ============================================================================
// Trend breakout · ATR risk — PineBag strategy template
// ============================================================================

// ----------------------------------------------------------------------------
// STRATEGY PROPERTIES (TradingView: Settings → Properties)
// ----------------------------------------------------------------------------
// TIMEFRAME takes a standard TradingView interval. Paste one of these, by the
// lowest TradingView plan that has it (tradingview.com/pricing, Charts):
//   Basic      days      "1D" "1W" "1M" "3M" "6M" "12M"
//   Essential  minutes   "1" "3" "5" "15" "30" "45"
//              hours     "60" "120" "180" "240"
//              ranges    "1R" "10R" "100R" "1000R"
//   Premium    seconds   "1S" "5S" "10S" "15S" "30S" "45S"
//   Ultimate   ticks     "1T" "10T" "100T" "1000T"
// Other intervals are custom and not used: a week is "1W", not "7D".
const string TIMEFRAME         = "1D"                         // Chart timeframe
const float  INITIAL_CAPITAL   = 100000                       // Initial capital
const string CURRENCY          = currency.USD                 // Initial capital currency
const float  ORDER_SIZE        = 100                          // Default order size
const string ORDER_SIZE_TYPE   = strategy.percent_of_equity   // Order size: % of equity
const int    PYRAMIDING        = 1                            // Pyramiding
const bool   BAR_MAGNIFIER     = false                        // Bar detalization: Default (4 ticks per bar)
const bool   CALC_EVERY_TICK   = false                        // Script execution: On bar close
const bool   CALC_ON_FILLS     = false                        // Script execution: no recalculation after fills
const float  COMMISSION        = 0                            // Commission
const string COMMISSION_TYPE   = strategy.commission.percent  // Commission: Percent
const float  MARGIN_LONG       = 100                          // Long leverage 1x (leverage = 100 / margin)
const float  MARGIN_SHORT      = 100                          // Short leverage 1x
const int    SLIPPAGE          = 0                            // Slippage, ticks
const int    LIMIT_FILL_TICKS  = 0                            // Limit order execution: Requested price
const bool   FILL_ON_BAR_CLOSE = false                        // Order execution delay: One tick

strategy("Trend breakout · ATR risk", overlay = true,
     initial_capital = INITIAL_CAPITAL,
     currency = CURRENCY,
     default_qty_type = ORDER_SIZE_TYPE,
     default_qty_value = ORDER_SIZE,
     pyramiding = PYRAMIDING,
     use_bar_magnifier = BAR_MAGNIFIER,
     calc_on_every_tick = CALC_EVERY_TICK,
     calc_on_order_fills = CALC_ON_FILLS,
     commission_type = COMMISSION_TYPE,
     commission_value = COMMISSION,
     margin_long = MARGIN_LONG,
     margin_short = MARGIN_SHORT,
     slippage = SLIPPAGE,
     backtest_fill_limits_assumption = LIMIT_FILL_TICKS,
     process_orders_on_close = FILL_ON_BAR_CLOSE)

// Stops with a clear message on any other timeframe; PineBag reads TIMEFRAME
// and selects it for the run.
if timeframe.period != TIMEFRAME
    runtime.error("Switch the chart to the " + TIMEFRAME + " timeframe.")

// ----------------------------------------------------------------------------
// INPUT SETTINGS (TradingView: Settings → Inputs)
// ----------------------------------------------------------------------------
fastLength     = input.int(20, "Fast EMA", minval = 1)
slowLength     = input.int(50, "Slow EMA", minval = 2)
breakoutLength = input.int(20, "Breakout lookback", minval = 2)
atrLength      = input.int(14, "ATR length", minval = 1)
atrStop        = input.float(2.0, "ATR stop multiplier", minval = 0.1, step = 0.1)

// ----------------------------------------------------------------------------
// CALCULATIONS
// ----------------------------------------------------------------------------
fast = ta.ema(close, fastLength)
slow = ta.ema(close, slowLength)
atr = ta.atr(atrLength)
highestBefore = ta.highest(high, breakoutLength)[1]

// ----------------------------------------------------------------------------
// ENTRIES AND EXITS
// ----------------------------------------------------------------------------
longSignal = fast > slow and close > highestBefore
if longSignal and strategy.position_size == 0
    strategy.entry("Long", strategy.long)

stopPrice = strategy.position_avg_price - atr * atrStop
strategy.exit("ATR stop", "Long", stop = stopPrice)

// ----------------------------------------------------------------------------
// PLOTS
// ----------------------------------------------------------------------------
plot(fast, "Fast EMA", color = color.rgb(0, 153, 255))
plot(slow, "Slow EMA", color = color.rgb(123, 97, 255))

const string TIMEFRAME = "1D"     // 1 day
// const string TIMEFRAME = "1W"  // 1 week
// const string TIMEFRAME = "240" // 4 hours
// const string TIMEFRAME = "15"  // 15 minutes
// const string TIMEFRAME = "30S" // 30 seconds, Premium and higher

// 10% of equity per trade
const float  ORDER_SIZE        = 10
const string ORDER_SIZE_TYPE   = strategy.percent_of_equity

// 1,000 USD per trade (CURRENCY = currency.USD)
// const float  ORDER_SIZE      = 1000
// const string ORDER_SIZE_TYPE = strategy.cash

// 0.5 contracts, shares or coins per trade
// const float  ORDER_SIZE      = 0.5
// const string ORDER_SIZE_TYPE = strategy.fixed

// ----------------------------------------------------------------------------
// INPUT SETTINGS (TradingView: Settings → Inputs)
// ----------------------------------------------------------------------------
fastLength     = input.int(20, "Fast EMA", minval = 1)
slowLength     = input.int(50, "Slow EMA", minval = 2)
breakoutLength = input.int(20, "Breakout lookback", minval = 2)
atrLength      = input.int(14, "ATR length", minval = 1)
atrStop        = input.float(2.0, "ATR stop multiplier", minval = 0.1, step = 0.1)