doublepattern_dacheng

Library "doublepattern_dacheng"

f_detect_top_bottom(x, sig, color_green, color_red, var_sequence, state)
  Parameters:
    x (int)
    sig (bool)
    color_green (color)
    color_red (color)
    var_sequence (array<store>)
    state (TopBottomState)

store
  Fields:
    dir (series int)
    n (series int)
    y (series float)

TopBottomState
  Fields:
    lpt (series int)
    prev_lpt (series int)
    pph (series float)
    ppl (series float)
    cpph (series float)
    cppl (series float)
    ln (series int)
    hn (series int)
    awaiting_DBC (series int)
    awaiting_DTC (series int)
    tthresh (series float)
    bthresh (series float)

自定义类型定义说明（Type Definitions）

该库定义了三个核心类型（type），用于结构化处理双顶双底形态识别逻辑：

This library defines three custom types to structurally manage double top/bottom pattern detection logic:

store

TopBottomState

f_detect_top_bottom() 函数

// 引入库（请将 {version_code} 替换为具体版本号）
// Import the library (replace {version_code} with the actual version code)
import dachengsuper/doublepattern_dacheng/{version_code} as dp

// ====================== 以下为 M 顶 和 W 底 的检测 开始 ====================
// ====================== Start of M Top and W Bottom Detection ====================

// 用一个 store 类型的动态数组 sequence 保存最近的枢轴点（最多 3 个）
// A dynamic array of type `store` to store recent pivot points (up to 3 points)
var dp.store[] sequence = array.new<dp.store>()

// 初始化状态对象，用于跟踪当前和历史的顶部/底部状态
// Initialize a TopBottomState object to track current and historical top/bottom state
var dp.TopBottomState state = dp.TopBottomState.new(0, 0, na, na, na, na, na, na, 0, 0, 0.0, 0.0)

// 调用检测函数：检测是否形成了 M 顶 或 W 底
// Call the detection function to check for M Top or W Bottom patterns
[DTC, DBC, res_sequence, res_state] = dp.f_detect_top_bottom(x, sig, green, red, sequence, state)

// ====================== M 顶 和 W 底 的检测 结束 ====================
// ====================== End of M Top and W Bottom Detection ====================

// 当 DTC 为 true 时，表示检测到双顶形态
// When DTC is true, it indicates a double top pattern is detected

// 当 DBC 为 true 时，表示检测到双底形态
// When DBC is true, it indicates a double bottom pattern is detected

// 示例：如果需要发送 webhook 信号，请加上 `barstate.isconfirmed` 判断，这样就不会重绘
// Example: To send a webhook signal, use `DTC and barstate.isconfirmed` to avoid repainting