视频

\[ a+b= c \]

            
            
            
asdasd

#123

            
            
            
1123123

            javascript
            
            
/*backtest
start: 2023-01-01 00:00:00
end: 2024-01-01 00:00:00
period: 1d
basePeriod: 1d
exchanges: [{"eid":"OKX","currency":"BTC_USD"}]
*/

// 线性回归函数
function linearRegression(y) {
    var n = y.length;
    var sum_x = 0;
    var sum_y = 0;
    var sum_xy = 0;
    var sum_x2 = 0;

    for (var i = 0; i < n; i++) {
        sum_x += i;
        sum_y += y[i];
        sum_xy += i * y[i];
        sum_x2 += i * i;
    }

    var slope = (n * sum_xy - sum_x * sum_y) / (n * sum_x2 - sum_x * sum_x);
    var intercept = (sum_y - slope * sum_x) / n;

    return {
        slope: slope,
        intercept: intercept
    };
}

function main() {
    var records = exchange.GetRecords();
    if (!records || records.length < 30) {
        Log("数据不足, 等待数据...");
        return;
    }

    var closePrices = [];
    for (var i = 0; i < 30; i++) {
        closePrices.push(records[records.length - 30 + i].Close);
    }

    var regression = linearRegression(closePrices);
    Log("斜率:", regression.slope, " 截距:", regression.intercept);
    Log("线性回归预测值:", regression.slope * 30 + regression.intercept);
}