//+------------------------------------------------------------------+
//| HalfTrend.mq4 |
//| Copyright 2014, AlexSoftware |
//| Based on Ozymandias.mq4 |
//+------------------------------------------------------------------+
#property indicator_chart_window
#property indicator_buffers 8
#property indicator_color1 DeepSkyBlue // up[]
#property indicator_width1 2
#property indicator_color2 Tomato // down[]
#property indicator_width2 2
#property indicator_color3 DeepSkyBlue // atrlo[]
#property indicator_width3 1
#property indicator_color4 Tomato // atrhi[]
#property indicator_width4 1
#property indicator_color5 DeepSkyBlue // arrup[]
#property indicator_width5 1
#property indicator_color6 Tomato // arrdwn[]
#property indicator_width6 1
#property indicator_color7 LemonChiffon // buy arrow
#property indicator_width7 1
#property indicator_color8 LightCoral // sell arrow
#property indicator_width8 1
extern int Amplitude = 2; // 振幅
extern int ShortPeriod = 5; // 短期均线周期
extern int MediumPeriod = 10; // 中期均线周期
extern int LongPeriod = 20; // 长期均线周期
extern bool ShowBars = false;
extern bool ShowArrows = true; // 默认显示箭头
extern bool alertsOn = false;
extern bool alertsMessage = true;
double up[], down[], atrlo[], atrhi[], trend[], arrup[], arrdwn[], buyArrow[], sellArrow[];
bool nexttrend; // 当前位置趋势
double minhighprice, maxlowprice;
//+------------------------------------------------------------------+
//| Initialization function |
//+------------------------------------------------------------------+
int OnInit() {
IndicatorBuffers(8); // 创建 8 个缓冲区
SetIndexBuffer(0, up);
SetIndexStyle(0, DRAW_LINE);
SetIndexBuffer(1, down);
SetIndexStyle(1, DRAW_LINE);
SetIndexBuffer(2, atrlo);
SetIndexBuffer(3, atrhi);
SetIndexBuffer(4, arrup);
SetIndexBuffer(5, arrdwn);
SetIndexBuffer(6, buyArrow);
SetIndexBuffer(7, sellArrow);
SetIndexEmptyValue(0, 0.0);
SetIndexEmptyValue(1, 0.0);
SetIndexEmptyValue(2, 0.0);
SetIndexEmptyValue(3, 0.0);
SetIndexEmptyValue(4, EMPTY_VALUE);
SetIndexEmptyValue(5, EMPTY_VALUE);
SetIndexEmptyValue(6, EMPTY_VALUE);
SetIndexEmptyValue(7, EMPTY_VALUE);
if (ShowArrows) {
SetIndexStyle(6, DRAW_ARROW);
SetIndexArrow(6, 233); // 买入箭头
SetIndexStyle(7, DRAW_ARROW);
SetIndexArrow(7, 234); // 卖出箭头
} else {
SetIndexStyle(6, DRAW_NONE);
SetIndexStyle(7, DRAW_NONE);
}
nexttrend = 1; // 初始为向上趋势
minhighprice = High[0]; // 初始化为当前最高价
maxlowprice = Low[0]; // 初始化为当前最低价
return INIT_SUCCEEDED; // 返回初始化成功
}
//+------------------------------------------------------------------+
//| Main calculation function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total, const int prev_calculated,
const datetime &time[], const double &open[], const double &high[],
const double &low[], const double &close[], const long &tick_volume[],
const long &volume[], const double &spread[]) {
int counted_bars = IndicatorCounted();
if (counted_bars < 0) return (-1);
if (counted_bars > 0) counted_bars--;
int limit = MathMin(rates_total - counted_bars, rates_total - 1);
// 确保trend、up、down、atrlo、atrhi、arrup、arrdwn、buyArrow、sellArrow数组足够大
ArrayResize(trend, rates_total);
ArrayResize(up, rates_total);
ArrayResize(down, rates_total);
ArrayResize(atrlo, rates_total);
ArrayResize(atrhi, rates_total);
ArrayResize(arrup, rates_total);
ArrayResize(arrdwn, rates_total);
ArrayResize(buyArrow, rates_total);
ArrayResize(sellArrow, rates_total);
ArrayInitialize(trend, 0);
ArrayInitialize(up, 0);
ArrayInitialize(down, 0);
ArrayInitialize(atrlo, 0);
ArrayInitialize(atrhi, 0);
ArrayInitialize(arrup, EMPTY_VALUE);
ArrayInitialize(arrdwn, EMPTY_VALUE);
ArrayInitialize(buyArrow, EMPTY_VALUE);
ArrayInitialize(sellArrow, EMPTY_VALUE);
for (int i = limit - 1; i >= 0; i--) {
// 计算低点和高点
double lowprice_i = iLow(NULL, 0, iLowest(NULL, 0, MODE_LOW, Amplitude, i));
double highprice_i = iHigh(NULL, 0, iHighest(NULL, 0, MODE_HIGH, Amplitude, i));
double lowma = iMA(NULL, 0, Amplitude, 0, MODE_SMA, PRICE_LOW, i);
double highma = iMA(NULL, 0, Amplitude, 0, MODE_SMA, PRICE_HIGH, i);
double atr = iATR(NULL, 0, 14, i) / 2; // 使用14期ATR
arrup[i] = EMPTY_VALUE;
arrdwn[i] = EMPTY_VALUE;
// 更新趋势
if (nexttrend == 1) { // 向上趋势
maxlowprice = MathMax(lowprice_i, maxlowprice);
if (highma < maxlowprice && Close[i] < Low[i + 1]) {
trend[i] = 1.0;
nexttrend = 0;
minhighprice = highprice_i;
}
} else { // 向下趋势
minhighprice = MathMin(highprice_i, minhighprice);
if (lowma > minhighprice && Close[i] > High[i + 1]) {
trend[i] = 0.0;
nexttrend = 1;
maxlowprice = lowprice_i;
}
}
// 计算上轨和下轨
if (trend[i] == 0.0) {
if (trend[i + 1] != 0.0) {
up[i] = down[i + 1];
} else {
up[i] = MathMax(maxlowprice, up[i + 1]);
}
atrhi[i] = up[i] - atr;
atrlo[i] = up[i];
down[i] = 0.0;
// 检查买入信号
if (isBuySignal(i)) {
buyArrow[i] = Low[i] - 2 * Point; // 设置买入信号箭头位置
}
} else {
if (trend[i + 1] != 1.0) {
down[i] = up[i + 1];
} else {
down[i] = MathMin(minhighprice, down[i + 1]);
}
atrhi[i] = down[i] + atr;
atrlo[i] = down[i];
up[i] = 0.0;
// 检查卖出信号
if (isSellSignal(i)) {
sellArrow[i] = High[i] + 2 * Point; // 设置卖出信号箭头位置
}
}
}
manageAlerts();
return rates_total;
}
//+------------------------------------------------------------------+
//| 检查买入信号 |
//+------------------------------------------------------------------+
bool isBuySignal(int index) {
double shortMA = iMA(NULL, 0, ShortPeriod, 0, MODE_SMA, PRICE_CLOSE, index);
double mediumMA = iMA(NULL, 0, MediumPeriod, 0, MODE_SMA, PRICE_CLOSE, index);
double longMA = iMA(NULL, 0, LongPeriod, 0, MODE_SMA, PRICE_CLOSE, index);
return (shortMA > mediumMA && mediumMA > longMA); // 确认多头趋势
}
//+------------------------------------------------------------------+
//| 检查卖出信号 |
//+------------------------------------------------------------------+
bool isSellSignal(int index) {
double shortMA = iMA(NULL, 0, ShortPeriod, 0, MODE_SMA, PRICE_CLOSE, index);
double mediumMA = iMA(NULL, 0, MediumPeriod, 0, MODE_SMA, PRICE_CLOSE, index);
double longMA = iMA(NULL, 0, LongPeriod, 0, MODE_SMA, PRICE_CLOSE, index);
return (shortMA < mediumMA && mediumMA < longMA); // 确认空头趋势
}
//+------------------------------------------------------------------+
//| 管理警报 |
//+------------------------------------------------------------------+
void manageAlerts() {
if (alertsOn) {
// 添加报警逻辑
}
}
帮助我把上方代码修改正确，斌且添加多周期共振出现买入和卖出信号并且在主图箭头显示
