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2. आर्किटेक्चर ब्रेकथ्रू बैकटेस्टिंग रणनीति

आर्किटेक्चर ब्रेकथ्रू बैकटेस्टिंग रणनीति

लेखक:चाओझांग, दिनांकः 2023-10-17 17:26:03
टैगः

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/*backtest
start: 2023-09-16 00:00:00
end: 2023-10-16 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

// © -_-
//@version=5
// strategy("[-_-] LBAB", process_orders_on_close=true, overlay=true, max_labels_count=500, max_lines_count=500, max_boxes_count=500, default_qty_type=strategy.cash, default_qty_value=100, initial_capital=10000, commission_type=strategy.commission.percent, commission_value=0.075)

// Inputs
lookback = input.int(2, title="Lookback", minval=2, maxval=15)      
tp = input.float(5, title="TP (%)", minval=1, maxval=10000)            
sl = input.float(5, title="SL (% from Low)", minval=1, maxval=100)  
com = input.float(0.075, title="Commission (%)", minval=0, maxval=50)

min_lookback_tr = input.float(2, title="Min Lookback", minval=1, maxval=500, inline="tr_lookback", group="Optimisation") 
max_lookback_tr = input.float(5, title="Max Lookback", minval=1, maxval=500, inline="tr_lookback", group="Optimisation") 
min_tp_tr = input.float(5, title="Min TP (%)", minval=1, maxval=10000, inline="tr_tp", group="Optimisation") 
max_tp_tr = input.float(10, title="Max TP (%)", minval=1, maxval=10000, inline="tr_tp", group="Optimisation") 
min_sl_tr = input.float(1, title="Min SL (%)", minval=1, maxval=100, inline="tr_sl", group="Optimisation") 
max_sl_tr = input.float(5, title="Max SL (%)", minval=1, maxval=100, inline="tr_sl", group="Optimisation") 
imp_perc_profit = input.bool(true, title="Percentage profitable", group="Optimisation")
imp_netprofit = input.bool(false, title="Net profit", group="Optimisation")
imp_numtrades = input.bool(false, title="Number of trades", group="Optimisation")
table_pos = input.string("Bottom Right", title="Position", options=["Top Left", "Top Center", "Top Right", "Middle Left", "Middle Center", "Middle Right", "Bottom Left", "Bottom Center", "Bottom Right"], group="Table")
table_font_size = input.string("Normal", title="Font size", options=["Auto", "Tiny", "Small", "Normal", "Large"], group="Table")

// Table parameters
table_pos_ = switch table_pos 
    "Top Left" => position.top_left
    "Top Center" => position.top_center
    "Top Right" => position.top_right
    "Middle Left" => position.middle_left
    "Middle Center" => position.middle_center
    "Middle Right" => position.middle_right
    "Bottom Left" => position.bottom_left
    "Bottom Center" => position.bottom_center
    "Bottom Right" => position.bottom_right

table_font_size_ = switch table_font_size
    "Auto" => size.auto
    "Tiny" => size.tiny
    "Small" => size.small
    "Normal" => size.normal
    "Large" => size.large

// Sorting function (first element will be largest)
sortArr(arr, arr_index) =>
    n = array.size(arr) - 1 
    for i = 0 to n - 1
        for j = 0 to n - i - 1
            if array.get(arr, j) < array.get(arr, j + 1)
                temp = array.get(arr, j)
                temp_index = array.get(arr_index, j)
                array.set(arr, j, array.get(arr, j + 1))
                array.set(arr, j + 1, temp)
                array.set(arr_index, j, array.get(arr_index, j + 1))
                array.set(arr_index, j + 1, temp_index)

// Safe checks
if min_lookback_tr > max_lookback_tr 
    runtime.error("Min Lookback must be less than Max Lookback")
if min_tp_tr > max_tp_tr 
    runtime.error("Min Take Profit must be less than Max Take Profit")
if min_sl_tr > max_sl_tr
    runtime.error("Min Stop Loss must be less than Max Stop Loss")

// 
tp_min_ = int(min_tp_tr / 1)
tp_max_ = int(max_tp_tr / 1)

sl_min_ = int(min_sl_tr / 1)
sl_max_ = int(max_sl_tr / 1)

// Size for arrays
arr_size = int((max_lookback_tr - min_lookback_tr + 1) * (tp_max_ - tp_min_ + 1) * (sl_max_ - sl_min_ + 1))

// Arrays
var arr_bi = array.new_int(arr_size, na)           // bar_index of Smash Day
var arr_in_pos = array.new_bool(arr_size, false)   // are we in a position?

var arr_params = array.new_string(arr_size, "")
var arr_wonlost = array.new_string(arr_size, "")
var arr_profit = array.new_float(arr_size, 0)

// Testing what parameters are best
index = 0

// Lookback
for lookback_i = min_lookback_tr to max_lookback_tr
    // Take profit
    for tp_i = tp_min_ to tp_max_
        // Stop loss
        for sl_i = sl_min_ to sl_max_
            // Parameters of current iteration
            lookback_ = lookback_i
            tp_ = tp_i
            sl_ = sl_i

            //
            if array.get(arr_params, index) == ""
                array.set(arr_params, index, str.tostring(lookback_) + " " + str.tostring(tp_) + " " + str.tostring(sl_))

            // Was there an entry?
            was_edone = false

            // If entry price reached
            if not array.get(arr_in_pos, index) and not na(array.get(arr_bi, index))
                if high >= high[bar_index - array.get(arr_bi, index)] and bar_index != array.get(arr_bi, index)
                    array.set(arr_in_pos, index, true)
                    was_edone := true

            // If we're in a position
            if array.get(arr_in_pos, index) and bar_index != array.get(arr_bi, index) and not was_edone
                low_sl = low[bar_index - array.get(arr_bi, index)] * (1 - sl_ / 100)
                high_ep = high[bar_index - array.get(arr_bi, index)]
                high_tp = high_ep * (1 + tp_ / 100)

                amount = 100

                // Stop loss
                if low <= low_sl
                    array.set(arr_in_pos, index, false)
                    array.set(arr_wonlost, index, array.get(arr_wonlost, index) + "0")
                    array.set(arr_profit, index, array.get(arr_profit, index) - math.abs(amount / high_ep * low_sl - amount) - com / 100 * amount * 2)
                    array.set(arr_bi, index, na)
                // Take profit
                if high >= high_tp
                    array.set(arr_in_pos, index, false)
                    array.set(arr_wonlost, index, array.get(arr_wonlost, index) + "1")
                    array.set(arr_profit, index, array.get(arr_profit, index) + math.abs(amount / high_ep * high_tp - amount) - com / 100 * amount * 2)
                    array.set(arr_bi, index, na)

            // Entry condition
            cond = barstate.isconfirmed and close < low[1] and high[1] < high[lookback_ + 1] //and not array.get(arr_in_pos, index) 

            // New entry price
            if cond and not array.get(arr_in_pos, index)
                array.set(arr_bi, index, bar_index)
            
            // Update index
            index := index + 1

// Checking the results
var table t = na
var result_index = array.new_int(0, na)
var result_arr_winrate = array.new_float(0, na)
var result_arr_tradenum = array.new_int(0, na)
var sort_array = array.new_float(0, na)

if (barstate.islast or barstate.islastconfirmedhistory) and na(t)
    for i = 0 to array.size(arr_params) - 1
        wins = 0
        losses = 0
        arr = array.get(arr_wonlost, i)
        for j = 0 to str.length(arr) - 1
            str_ = str.substring(arr, j, j + 1)
            if str_ == "0"
                losses := losses + 1
            if str_ == "1"
                wins := wins + 1
        // Push percentage profitable trades
        perc_profit = math.round(wins / (wins + losses) * 100, 2)
        array.push(result_arr_winrate, perc_profit)
        // Push number of trades
        trade_num = str.length(array.get(arr_wonlost, i))
        array.push(result_arr_tradenum, trade_num)
        // Push index
        array.push(result_index, i)
        // For combined sorting                          
        array.push(sort_array, (imp_netprofit ? array.get(arr_profit, i) : 1) * (imp_perc_profit ? perc_profit : 1) * (imp_numtrades ? trade_num : 1))

    // Sort
    sortArr(array.copy(sort_array), result_index)

    t := table.new(columns=6, rows=13, bgcolor=color.white, border_color=color.new(color.blue, 0), border_width=1, frame_color=color.new(color.blue, 0), frame_width=1, position=table_pos_)

    table.cell(t, 0, 0, "% Profitable" + (imp_perc_profit ? " ↓" : ""), bgcolor=imp_perc_profit ? color.rgb(23, 18, 25) : color.white, text_color=imp_perc_profit ? color.white : color.black, text_size=table_font_size_)
    table.cell(t, 1, 0, "Net Profit" + (imp_netprofit ? " ↓" : ""), bgcolor=imp_netprofit ? color.rgb(23, 18, 25) : color.white, text_color=imp_netprofit ? color.white : color.black, text_size=table_font_size_)
    table.cell(t, 2, 0, "# of trades" + (imp_numtrades ? " ↓" : ""), bgcolor=imp_numtrades ? color.rgb(23, 18, 25) : color.white, text_color=imp_numtrades ? color.white : color.black, text_size=table_font_size_)
    table.cell(t, 3, 0, "Lookback", text_size=table_font_size_)
    table.cell(t, 4, 0, "Take Profit %", text_size=table_font_size_)
    table.cell(t, 5, 0, "Stop Loss %", text_size=table_font_size_)

    counter = 0
    forloop_counter = math.min(array.size(result_index) - 1, 10)
    for i = 0 to forloop_counter
        i_ = array.get(result_index, i)
        params_ = str.split(array.get(arr_params, i_), " ")
        col_ = color.new(color.blue, 75)
        table.cell(t, 0, i + 1, str.tostring(array.get(result_arr_winrate, i_)) + "%", bgcolor=col_, text_size=table_font_size_)
        table.cell(t, 1, i + 1, str.tostring(math.round(array.get(arr_profit, i_), 2)) + "$", bgcolor=col_, text_size=table_font_size_)
        table.cell(t, 2, i + 1, str.tostring(array.get(result_arr_tradenum, i_)), bgcolor=col_, text_size=table_font_size_)
        table.cell(t, 3, i + 1, array.get(params_, 0), bgcolor=col_, text_size=table_font_size_)
        table.cell(t, 4, i + 1, array.get(params_, 1), bgcolor=col_, text_size=table_font_size_)
        table.cell(t, 5, i + 1, array.get(params_, 2), bgcolor=col_, text_size=table_font_size_)
        counter := counter + 1

    // Warn if timeframe is <= 10 minutes
    if timeframe.in_seconds(timeframe.period) <= 600
        table.cell(t, 0, forloop_counter + 2, "Timeframe might be too low", bgcolor=color.orange, text_size=table_font_size_, tooltip="Selected timeframe might be too low and cause an error")
        table.merge_cells(t, 0, forloop_counter + 2, 5, forloop_counter + 2)

// Strategy
var int bi = na
var int pos_bi = na

// Buy condition
cond = barstate.isconfirmed and close < low[1] and high[1] < high[lookback + 1] and strategy.position_size == 0 

// Stop loss, Take profit
if strategy.position_size[1] == 0 and strategy.position_size > 0 and bar_index != bi
    strategy.exit("TP/SL", "Long", stop=low[bar_index - bi] * (1 - sl / 100), limit=high[bar_index - bi] * (1 + tp / 100))
    pos_bi := bar_index

// Buy
if cond 
    strategy.order("Long", strategy.long, stop=high)
    bi := bar_index

// Box
if strategy.position_size[1] != 0 and strategy.position_size == 0
    tn = strategy.closedtrades - 1
    penp = strategy.closedtrades.entry_price(tn)
    pexp = strategy.closedtrades.exit_price(tn)

---

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