查询词典 moving average

A theoretical comparison is conducted to demonstrate that when autocorrelation coefficient and moving average coefficient are positive, the safety stock with a variable reorder level is less than that determined by means of moments of demand, but more than that with traditional reorder point approach.

理论分析得出，在需求呈正相关且随机误差项平滑系数为正数时，变化订货点水平确定模型得出的安全库存低于根据时点需求得出的安全库存，而高于传统模型得出的安全库存。

Based on the autoregression equation for the standard variation of the residual errors obtained by ordinary regression analysis, the least square estimates and the maximum likelihood estimates for the regression, the autoregression and the moving average coefficients are derived.

提出一种异方差回归－时序模型，通过建立回归分析残差的标准差自回归方程，给出回归系数、自回归系数和滑动平均系数的最小二乘估计和极大似然估计。

Namely, the first, the beginning, end and length of growing season of every type of vegetation is estimated with threshold method and moving average method, and the beginning end and length of growing season of vegetation from 1982 to 1999 is fitted linearly, finally, linear trend of the beginning end and length of growing season of vegetation is analyzed. The second, phenological phase in different years and zones is estimated based on greatest changes of slope method and EOF analysis method, and the result monitored by the two methods is compared, as a result, trend of growing season change from 1982 to 1999 in different latitude zones is better acquired. The third, phenological phase of vegetation in different spatial location from 1982 to 1999 is fitted based on curve. Then, spatial difference rules of growing season of every year and average of multi-year is discussed in article. In the end, lag correlation and linear regress are used to study relation between phenological phase of different types of vegetation, different latitude zones, different spatial places and climate changes.

利用阈值法和滑动平均法逐年估测了每种植被类型的生长季的开始、结束日期及长度；对18年中植被生长季的开始、结束时间和长度进行一次线性拟合，分析了植被生长季的开始、结束日期和长度的线性变化趋势；基于最大变化斜率法和EOF分析法估计了不同年份、不同区域内植被生长季的开始、结束时间及其长度，并对这两种方法的监测结果作了比较，从而得到了较好的不同纬度区域1982～1999年植被生长季的变化趋势；基于曲线拟合了1982～1999年的不同空间位置的植被物候期，然后讨论了每年和多年平均的植被生长季的空间分异规律；最后利用时滞相关分析和线性回归研究了不同类型植被的物候期与气候变化的相互关系，不同纬度带的植被物候期与气候变化的相互关系，植被物候期与气候变化空间相互关系。

E forecasting precision with the method of moving average can be improved by the optimal moving step length n.

为选用移动平均法中最优移动步长n，利用计算机的计算功能，设计了一种较为精确地确定移动平均法中最优移动步长n的方法。

When performing a moving average, you average over a number of periods.

当你使用一个移动平均，你对一段时间的数据进行了平均。

A moving average reflects an average consensus of value in its time window.

一条均线用自己的时间框架反应了平均的一致认同。

If the daily stock does not change the law of average, the moving average line constitutes MA.

如果将每日股价不规律的变化平均化，就构成了移动平均线MA。

This method is based on moving average techniques, a statistics Uis calculated and opimized within a variable-sized moving window centred at an arbitrary sample location. The optimal statistic U(r0) characterizes the entities present in an image,therefore the U-statistic method usually provide better results in geochemical pattern recognition.

建立在移动平均技术基础之上，对任意一个样品位置，以该样品为中心具有窗口大小r可变化的移动窗口内，可计算出窗口内的一组样品所确定的统计量U值，根据统计量的最佳值U(r0)所成的图像，可以更好的反映相邻样品间存在的空间相关和变化特征，有助于地球化学模式识别和异常筛选。

It is a34- bar simple moving average of the bar s midpoints/2 subtracted from a5- bar simple moveing average of the midpoints/2, plotted in a histogram form.

它是以5个价格之条形图之中点价2取移动平均，再减去34支条形图之中点价2之移动平均，并以柱状图之形式表示。

It is a 34-bar simple moving average of the bars midpoints/2 subtracted from a 5-bar simple moveing average of the midpoints/2,plotted in a histogram form.

它是以5个价格之条形图之中点价/2取移动平均，再减去34支条形图之中点价/2之移动平均，并以柱状图之形式表示。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。