频数分布,frequency distribution
1)frequency distribution频数分布
1.To investigate the frequency distribution of the scale of sex hormones in the middle and old aged persons.探讨中老年男女性激素水平的频数分布类型。
2.In this paper, the frequency distributions on daily averages of air pollutants: SO_2,NO_x,CO,TSP from each measuring point at different time in the whole city of Jinan, were hypotheiically tested.本文假设检验了济南市大气污染物SO_2、NO_x、CO、TSP不同时间内全市及各测点日均值的频数分布,得出以上各污染物在不同时期内服从或近似服从对数正态分布的规律。
英文短句/例句

1.Three Methods of Applying Excel toCounting the Frequency of Quantitative Data;用Excel统计数值型数据频数分布的三种方法
2.The portion of a frequency distribution containing one fifth of the total sample.五分位数频数分布中,含有总抽样量的五分之一的部分
3.The Method of Frequency Distribution and the Research of Motivation about Earnings Management in Listed Companies;频数分布法与上市公司盈余管理动机研究
4.It was pointed out that BIN method is under a hypothesis that frequency is normally distributed.提出BIN方法是在假设频数分布为正态性的前提下使用的。
5.The number of measurements in an interval of a frequency distribution.频率分布一次频率分布的区间内计算的数量
6.Parameter Estimation of Frequency-Hopping Signals Based on Generalized Rectangular Time-Frequency Distribution基于广义矩形时频分布的跳频信号参数估计
7.linearized sample cumulative distribution frequency线性化样本累积分布频数
8.Parameter Estimation of Frequency-hopping Signals Based on Butterworth Distribution基于Butterworth分布的跳频信号参数估计
9.The Bradford Distribution of the Books Loan Frequency in Library and Its Impact Factor科技图书外借频数的布氏分布及其影响因素
10.a distribution of observed frequencies of occurrence of the values of a variable.根据变数数值在观察中出现的频率的一种分布。
11.Calculates how often values occur within a range of values and then returns a vertical array of numbers having one more element than Bins_array以一列垂直数组返回一组数据的频率分布
12.A Study of the High-frequency-data-based Classified Information Mixture Distribution GARCH Model;基于高频数据的分类信息混合分布GARCH模型研究
13.A frequency distribution shows the number of observations from the data set that fall into each of the classes.频率分布反映出落入每一组的观察值个数。
14.Four-Parameter Subspace Matching Pursuit Algorithm with the Help of Time-frequency Distribution;由时频分布引导的四参数子空间匹配追踪算法
15.Detection Based on the Morphology of Time-Frequency Distribution;基于时频分布的数学形态学的信号检测
16.The Stark Broadening and Stark Shift with Different Electric Microfield Distribution Functions不同微场分布函数对Stark加宽和频移的影响
17.Study on Frequency-Dependent Characteristics of Distributed Parameters of Passive Devices in RFICs;射频集成电路中无源器件分布参数的频变特性研究
18.Time-Frequency Analysis Based on Bi-directional Gaussian Kernel and Its Application in Instantaneous Frequency Estimation双向高斯核函数时频分布及在瞬时频率估计中的应用
相关短句/例句

A Frequency Distribution Table频数分布表
3)frequency-number distribution map频数分布图
4)frequency distribution频数分布;频率分布
5)two tailed cumulative frequency distribution分数维频率分布
6)weight frequency distribution体重频数分布
延伸阅读

频数分布在统计分组的基础上,将总体中所有单位按组归类整理,形成总体中各个单位数在各组间的分配,叫做频数分布。分布在各组中的个体单位数叫做次数或频数。频数大小决定该组标志值作用的强度。各组次数与总次数之比叫做比率或频率。