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
- 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。 - 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。 - 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。 - According to the school level, we divided them into early, middle and senior three stages, respectively by applying the method of correctly using relative frequency statistics from each stage of the acquisition sequence.
按照学时等级分为初、中、高级三个阶段，运用正确使用相对频率法分别统计出每个阶段的习得顺序。 - A analytic formula about the measuring value of active power and power factor of periodic signal as a function of the relative frequency deviation and the sampling initial phase ( or time) is derived;
推导出任意电压、电流信号的有功功率、功率因数随相对频偏及采样相位变化的一般公式； - The electromechanical coupling coefficient is usually determined from the relative frequency spacing of the resonance and anti resonance.
压电材料的机电耦合系数通常由谐振及反谐振频率之间的相对间隔确定。 - 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。 - 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。 - In this paper, authors advised a new method calculating the cumulative relative frequency, to study frequent distribution of plant size in the population. To investigate the distribution and frequency of symptoms in manic-depressive disorder.
提出了在解析植物群体的直径分布时不划分直经阶，直接求累计频度的方法；目的调查住院躁狂和抑郁症的症状分布和频度。 - 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。