skewness 中文意思是什麼
skewness
解釋
不對襯-
Skewness and kurtosis statistics for testing normality in ev model
帶有誤差變量的偏度和峰度正態性檢驗 -
The coefficients of skewness ( cs ) and kurtosis ( ce ) have the feature of cs < 0, ce
縱向脈動速度概率密度分佈的偏態系數0 0 ，峰態系數ce 。 -
The resuts showed that the annual average temperature had an increasing trend ; summer, autumn and winter average temperature also had an increasing trend and the amplitude in winter was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients of skewness were positive value during summer and autumn ; the kurtosis coefficients were bigger during winter
得出如下結論：和田地區年氣溫有增加的趨勢；夏季、秋季、冬季氣溫也有增加的趨勢且冬季氣溫值增幅較大；標準差及變差系數都是冬季變化較為劇烈；偏度系數在夏季及秋季為正值；峰度系數值在冬季較大。 -
The following is the studying process on the problem. first of all, we overview the methods of the option pricing and the compute, then make the tests of normality on the return rate of stock by skewness - kurtosis test and kolmogorov - smirnov test
第一部分對期權定價有關問題作綜述，先介紹有關期權的一些概念，再介紹期權定價的方法與計算，最後概括期權方面研究的問題與本文主要研究的問題 -
Test method for skewness and bow in woven and knitted fabrics
機織物與針織物緯斜和弓緯試驗方法 -
Test method for bow and skewness in woven and knitted fabrics
機織和針織織物中弓緯和緯斜的試驗方法 -
Secondly, we construct the sequential confidence intervals for the common number characters : coefficient of variation, skewness and kurtosis, stressing on computing their asymptotic variances in their limiting distributions
其次，我們就常用的數字特徵變異系數、偏度和峰度分別建立了它們的序貫置信區間程序，著重算出它們極限分佈中的相關漸近方差。 -
Because empirical distributions of rates of return on risky securities have characters of skewness and excess kurtosis, this article puts forward studying portfolio selection model conditional on non - normal stable distributions
摘要針對風險證券收益率的經驗分佈所具有的偏態和過度峰態等非正態分佈特徵，提出在非正態穩定分佈條件下研究投資組合模型。 -
At first, the image was binarized by using ostu method. then the skewness of the image was dectectd by radon t.
首先用大津法對圖像進行二值化，然後用radon進行傾斜檢測，最後用數學形態學開運算減少干擾，用投影法框定待識別標題位置。 -
Through the i 、 q component of ipix radar sea clutter data " s histogram analyses and by skewness and kurtosis computed, it is been shown that sea clutter amplitude is not rayleigh distribution ; through the comparison of amplitude histogram and distributed models with the same parameters, it is been shown that hh polarization clutter is lognormal distribution, whereas vv polarization is k - distribution ; at the same time the correlation function and power spectrum density are been analyzed, at last the correlation compound k - distribution stochastic sequences whose covariance matrix is been given are been generated through sirp algorithm
文中先介紹了海雜波幅度的有關模型，通過對ipix雷達海雜波數據的i 、 q分量的直方圖以及傾斜度和峰度進行了分析和計算，證明了海雜波幅度不服從瑞利分佈;使用幅度直方圖和相同參數下的各種分佈模型進行比較，得出hh極化符合對數正態分佈，而vv極化服從k -分佈的結論;同時對海雜波的相關函數和功率譜進行了分析，最後使用sirp演算法產生了給定協方差矩陣的相關復合k -分佈隨機序列。 -
The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data
採用面元法預報大側斜螺旋槳水動力性能，螺旋槳表面及尾渦面離散為四邊形雙曲面元，每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言，槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元，這容易使槳葉表面速度的計算結果不正確，甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法，能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件 -
Measures for improving the washing torsional deformation caused by skewness of fabric from which garment is made - up
針織物緯斜影響成衣水洗扭度的控制 -
We firstly smoothed these finger prints by wavelet transform. then we expressed these finger prints by some statistic parameters such as skewness, kurtosis, number of peaks, asymmetry, and the cross - correlation factor. lastly we put these statistic parameters into the artificial neural network for pattern recognition
通過對譜圖波形特性的分析，先對譜圖進行了小波平滑，然後在平滑后的譜圖上提取了表示波形特徵的統計指標，最後把統計指標送入人工神經網路進行模式識別。 -
Coefficient of skewness
偏度系數 -
Skewness is a statistical measure of the uniformity of the distribution of a group of measures
偏態是對一組分佈均勻性測量的統計度量。 -
Based on this model, this method is then used to design some other special control schemes, such as skewness distributions, small batches, small shifts, and attribute control charts
把這種方法擴展到一些特殊的控制圖的設計當中，本文除了討論測量值服從正態分佈的情形外，還分別分析了偏態分佈、小批量生產、小波動的探測和計數型控制圖等情形時最優控制方案的設計。 -
Swirling flow is one of the fashions which often appears in our everyday lives and nature. swirling flow is a very complex flow because of the streamline curvature and the skewness of the velocity vector
螺旋流問題是日常生活和生產實踐中經常出現的一種流動形式，由於流線彎曲、流動斜交，使流動變得十分復雜。 -
A new matching method of well - log and seismic data is presented so that two - dimensional distributed seismic attribute can be used in 3d reservoir geological modeling. it is named vertical equivalence method. the seismic attribute classification method based on the geological properties in reservoir geological modeling, seismic wave skewness and kurtosis conception, and the rules of seismic time window selection and attribute analysis are presented
提出了將二維分佈的地震屬性用於三維儲層地質建模的井震數據匹配地震屬性縱向等值法、基於儲層地質建模儲層地質屬性的地震屬性分類方法、地震波形偏度與尖度的概念、地震時窗選取準則和地震屬性分析準則，為在大慶油田開展儲層地質建模建立了可選的地震屬性參數表。 -
Aimed at a great deal of components submitted to the skewness distribution during the mixed signal identification, a new improved independent component analysis algorithm is proposed to deal with this kind of signals
摘要針對實際混合信號中許多分量具有偏態分佈的特點，提出了一種用於該類混合信號的新的獨立分量分析演算法。 -
Grain - size distribution may be characterized in part by skewness of the distribution
粒徑的分佈具有偏態分佈的特點。
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