Highstock随机％d不正确

1 回答

• 0

  感谢您的报告 . 不幸的是，你_96429_由计算值od %d 的错误起点引起 . 我刚刚在我们的GitHub存储库中报告了它 . 以下是发布的链接：https://github.com/highcharts/highcharts/issues/8965

  在修复之前，您可以应用覆盖 getValues 函数的自定义修复程序 . 这是代码：

  (function(H) {
      var isArray = H.isArray,
      SMA = H.seriesTypes.sma,
      reduce = H.reduce,
      getArrayExtremes = function (arr, minIndex, maxIndex) {
          return reduce(arr, function (prev, target) {
              return [
                  Math.min(prev[0], target[minIndex]),
                  Math.max(prev[1], target[maxIndex])
              ];
          }, [Number.MAX_VALUE, -Number.MAX_VALUE]);
      };
    console.log(H.seriesTypes.stochastic.prototype)
      H.seriesTypes.stochastic.prototype.getValues = function(series, params) {
    var periodK = params.periods[0],
                  periodD = params.periods[1],
                  xVal = series.xData,
                  yVal = series.yData,
                  yValLen = yVal ? yVal.length : 0,
                  SO = [], // 0- date, 1-%K, 2-%D
                  xData = [],
                  yData = [],
                  slicedY,
                  close = 3,
                  low = 2,
                  high = 1,
                  CL, HL, LL, K,
                  D = null,
                  points,
                  extremes,
                  i;
  
  
              // Stochastic requires close value
              if (
                  yValLen < periodK ||
                  !isArray(yVal[0]) ||
                  yVal[0].length !== 4
              ) {
                  return false;
              }
  
              // For a N-period, we start from N-1 point, to calculate Nth point
              // That is why we later need to comprehend slice() elements list
              // with (+1)
              for (i = periodK - 1; i < yValLen; i++) {
                  slicedY = yVal.slice(i - periodK + 1, i + 1);
  
                  // Calculate %K
                  extremes = getArrayExtremes(slicedY, low, high);
                  LL = extremes[0]; // Lowest low in %K periods
                  CL = yVal[i][close] - LL;
                  HL = extremes[1] - LL;
                  K = CL / HL * 100;
  
                  xData.push(xVal[i]);
                  yData.push([K, null]);
  
                  // Calculate smoothed %D, which is SMA of %K
                  if (i >= (periodK - 1) + (periodD - 1)) {
                      points = SMA.prototype.getValues.call(this, {
                          xData: xData.slice(-periodD),
                          yData: yData.slice(-periodD)
                      }, {
                          period: periodD
                      });
                      D = points.yData[0];
                  }
  
                  SO.push([xVal[i], K, D]);
                  yData[yData.length - 1][1] = D;
              }
  
              return {
                  values: SO,
                  xData: xData,
                  yData: yData
              };
    }
  })(Highcharts)
  

  Live example: http://jsfiddle.net/d4hjmze1/

  回复于 2024-05-01T19:12:36+08:00