normal frequency distribution 中文意思是什麼
normal frequency distribution
解釋
常態次數分佈- normal : adj 1 正常的，平常的，普通的；平均的。2 正規的，標準的，額定的，規定的。3 智力正常的，精神健全的...
- frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
- distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
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Standard deviation in statistics, a measure of the dispersion of a frequency distribution : it is the average magnitude of deviations from the center of normal curve, calculated by squaring all the deviations, calculating their mean, then finding the square root of the mean
標準偏差：統計中，一種衡量數據組分佈的分散或變化情況的數據，是偏離正態分佈中間位置數據大小的平均值。 -
First, realized a wegener - willie distribute based network traffic anomaly detection algorithm. we make use of wegener - willie distribute to analyze the inherent time - frequency distribution characteristics of the traffic flow signal. then according to the experience of analysis on historical flow, we construct a normal flow training sample aggregation and a abnormal flow training sample aggregation
通過魏格納-威利分佈分析網路流量信號在時頻分佈上所反映出的內在特點，根據歷史流量的經驗構造正常流量和異常流量兩個訓練樣本空間，通過k最近鄰分類演算法將帶檢測流量信號的時頻分佈與訓練樣本進行比較，完成對檢測樣本的自動分類識別。 -
The results showed there were normal distribution patterns between each factors and it ' s frequency
結果表明：長穗苜蓿植株群體穗長、小花數、莢果數、種子數出現的頻數均近似呈正態分佈。 -
The distributions of the values of fluctuating pressure conform to the law of normal distribution ; and the dominant frequency is low frequency
脈動壓強幅值分佈符合正態分佈規律，優勢頻率為低頻。 -
Secondly, my paper researched low flow frequency analysis in karst drainage and selected four types of the theoretic frequency distributions. log - normal distribution and p - iii distribution are applicable to low flow frequency analysis in karst region by caculating and comparing. furthermore, the low flow frequency distrbutions are almost same in these drainages of different types of landforms
二是對喀斯特流域的枯水頻率分析作了初步研究，選擇了四種理論頻率曲線經過計算和比較，得出適用於喀斯特地區枯水頻率分析的線型是對數正態分佈和皮爾遜?型（ p ? ）分佈，並且流域中地貌類型的差異對枯水頻率曲線的選擇幾乎是無影響。
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