relative frequency
英 [ˈrelətɪv ˈfriːkwənsi]
美 [ˈrelətɪv ˈfriːkwənsi]
网络 频率; 相对频数; 相对频率; 相對次數; 相对次数
英英释义
noun
- the ratio of the number of observations in a statistical category to the total number of observations
双语例句
- An experimental system for determining local time differences and relative frequency difference for two separate hydrogen masers has been carried out.
在此基础上，介绍了我们建立的一套地面激光时间传递系统，以及对两台氢原子钟进行钟差比对和相对频率差的测定。 - After the calculation of the relative density, relative frequency and relative dominance, the importance value of the species was calculated. The importance of the species in the niche was judged by the important value.
据所调查的数据计算出不同生境各个树种的相对密度、相对频度、相对优势度及重要值，根据重要值的大小来判断该种群在该生境中的地位和作用。 - A virtual arbitrary waveform generator in DDS is introduced, in which FPGA is used for the digital circuits and memory carriers in Quartus, the constant high relative frequency precision can be realized in the low frequency area.
Quartus环境以FPGA为数字电路和存储体载体，运用DDS技术虚拟实现任意信号产生，并在信号低频段仍能保持恒定很高的频率相对精度。 - Both theory and numerical computation show that the error of active power and power factor measurement is proportional to the relative frequency deviation when the conventional algorithm is used, while it is proportional to square of the relative frequency deviation when the proposed weighted algorithm is used.
传统算法的有功功率、功率因数的测量误差与相对频偏成正比；而用该文所提出的三角窗加权算法，有功功率、功率因数的测量误差与相对频偏的平方成正比。 - Objective To evaluate the practical application of the WHO classification of lymphoid neoplasms, and to investigate the relative frequency and geographic distribution of the subtypes of lymphoma.
目的研究世界卫生组织（WHO）淋巴组织肿瘤新分类法的适用性，观察淋巴瘤不同类型的发生率以及淋巴瘤类型分布的地域人群特点。 - Based on feature extraction in the prediction of protein classification problem, this paper propose two new protein vector. One is based on the pK value and the other is based on the relative frequency.
本文围绕蛋白质分类预测中的特征提取问题，提出了两种新型的蛋白质向量表示法，一种是基于电离常量的向量表示，一种是基于相对频率的向量表示。 - Code-starting sequences and 1307 code-terminal sequences of E. coli were compiled and the RF ( relative frequency) values of 6 base elements, 4 base elements and 3 base elements in the two regions were counted.
对大肠杆菌1231个编码开始区域和1307个编码终止区域内的6碱基片段、4碱基片段和3碱基片段进行了统计。 - At the same time, a track control function and adaptive control algorithm to reduce the relative frequency of the rudder roll, the failure rate and maintenance costs are reduced, while also increasing the safety of the ship.
同时由于具有航迹控制功能和自适应算法，使动舵次数相对减少，降低了舵机的故障率及维修费用，同时也增加了船舶航行的安全性。 - The high-frequency codons were selected by high-frequency codon analysis according to relative frequency of synonymous codon ( RFSC) which is calculated by RFCS program written by ourselves.
利用自编的RFCS程序计算同义密码子相对使用频率（RFSC），并根据RFSC值筛选出高频密码子。 - When Coping with simple problems, most of the teachers calculated probability by permutations and combinations or by analyzing the tree diagrams, rarely by designing simulations to estimate probability by relative frequency.
对于比较简单的问题，教师主要采用排列组合方法或作树状图等计算概率，很少设计模拟试验用频率估计概率，高中教师理论分析的成功率高，但是没有一个人提到用频率估计概率。