查询词典 standard deviation

By using the principle of least absolute deviation method , we will give a new priority method—least logarithm absolute deviation method.

利用最小一乘法原理，在层次分析中提出了一种新的排序方法——对数最小一乘法，并将其转化成线性规划问题求解，证明了对数最小一乘法的一些性质。

Earlier, when we calculated the range, the interquartile deviation, and average absolute deviation, the answers were expressed in the same units as the data itself.

当我们计算极差，四分点离差和平均绝对偏差时，答案的计量单位与数据单位量相同的。

When the random error is not subject to normal distribution, the least absolute deviation estimation is superior to the least squares estimation. In addition, the robustness of the least absolute deviation estimation is also better than that of the least squares estimation.

在随机误差不服从正态分布的问题中，最小一乘估计的统计性能优于最小二乘枯计；另外，最小一乘估计的稳健性更强。

The optimal pH of xylanases was calculated based on the model and the results was shown as below: there were only two xylanses with the deviation between the calculated pHs the optimum pHs larger than 0.6, while there 6 xylanases with the deviation less than 0.1 the mean absolute percent error was 5.91%, the mean absolute error were 0.26 pH unit, respectively. It was superior when compared with the reported stepwise regression model based on dipeptide composition.

利用该方程，计算各木聚糖酶的pH值，结果表明，仅有2个木聚糖酶的最适合pH计算值与实测值相差大于0.6，而有6个木聚糖酶最适pH计算值与测定值相差小于0.1，平均绝对百分比误差为5.91%，平均绝对误差为0.26个pH单位，所得结果优于用二肽进行逐步回归所得模型的结果。

For the key of vector- Distance algorithm , Curve fitting is used for the derivation of deviation angle algorithm, demonstrating the feasibility of deviation angle Algorithm and the error analysis.

针对矢量距离算法的关键，采用曲线拟合对计算偏离角的关系式进行了推导，论证了偏离角算法的可行性，对算法进行误差分析，用归纳的方法推导出计算磁短节中点与直井之间距离的关系式。

In order to further understand the effect of deviation angle on the vertical resolution of the compensated neutron log, Monte Carlo simulation method was applied to study the vertical geometrical factors and formation sensitivity under different deviation angle conditions, furthermore the responses of the tool were simulated in laminations.

为了进一步认识井斜角对补偿中子测井纵向分辨率的影响，利用蒙特卡罗模拟方法，分析了在不同井斜角情况下测井仪器的纵向几何因子和地层灵敏度，并模拟了在薄地层中的仪器响应。

The results show, when the prism wedge angle is 4°, the transmitted laser beam changes about 1 μrad as the prism rotates 1′; when the small angle deviation on one side of the minimum deviation angle of each prism is controlled, the scanning range of laser beam in the horizontal and vertical direction is not less than 500 μrad, and the scanning precision of the device is superior to 0.2 μrad.

结果表明：取棱镜棱角α为4°时，棱镜每旋转1′，透射光束变化约1 μrad；分别控制双棱镜在其最小偏向角一侧小角度偏转，可以实现光束在水平方向和垂直方向500 μrad范围内的精确扫描，装置的扫描精度可以达到0.2 μrad。

Through finding a best fitting spherical surface, making the maximum deviation between aspheric surface and the best fitting spherical surface minimum, the maximum deviation at this time is just the maximum asphericity of aspheric surface.

寻找最接近球面，使其沿法线方向与非球面的最大偏离量最小，此时的最大偏离量即为非球面的最大非球面度。

Of the SFC in 2005 "on the money market funds and other investment-related issues notice" requirement, when the shadow pricing method to determine the net asset value of the Fund and the sharing of this Law Yu calculated the net asset value of the Fund deviation absolute value reached or exceeded 0.25 percent, the fund managers should be based on risk control of the need to adjust the portfolio, especially for the absolute degree of deviation to meet or exceed 0.5% of cases, fund managers should be prepared and the disclosure of the interim report.

在2005年"关于货币市场基金和其他投资相关问题的通知"的规定，当影子定价法确定的基金资产净值和本法于共享计算该基金的偏差绝对值达到或超过0.25个百分点，基金管理人应当对风险的需要调整组合的控制，特别是绝对偏离度达到或超过0.5％的情况下资产净值，基金经理应当编制和临时报告的披露。

In order to improve the measuring accuracy and efficiency, a high accuracy inspecting system for measuring the centroid and centroidal deviation of bullets based on three point method is designed. The working principle, relevant calculation formulae and the measuring equipment for measuring the centroid and centroidal deviation of bullets are presented, and the main factors affecting measuring precision are discussed. Then, a multiple measuring platform with automatic leveling and column structure autorotation of 90° is put forward.

为了提高其测量精度和效率，设计了基于三点法的高精度弹丸质偏心测量系统，介绍了测量原理、计算公式和测量设备，分析了测量误差产生的因素，提出了一种多测试平台和自动调平以及弹体自动旋转90°的设计思想。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。