variance accounts 中文意思是什麼
variance accounts
解釋
差異帳戶-
The paper accounts the importance and the necessity of the forecasting research to the stock return volatility of our country, and the use in practice of the forecasting about the stock return volatility, firstly, stock market of our country is divided into large scale stock 、 middle scale stock and small scale stock on the basis of stock size. secondly, according to the basic method of the mathematical statistics ， the behavior of the return volatility about single stock is described by using the model of the rolling variance estimates 。 through the relation of daily returns volatility and weekly returns volatility and the forecasting accuracy of the volatility forecasting model to various stock scale ， we do practical analysis with the forecasting research to return volatility of single stock market
在個股收益波動性的可預測性研究方面，首先按市值規模大小將我國股票分為大盤股、中盤股和小盤股，然後利用數理統計的基本方法，用滾動樣本方差估計模型描述個股市場收益波動性的行為，並對三種股票日收益率序列及周收益率序列波動之間的關系以及波動預測模型對各種股盤的預測準確性進行了實證分析和結果檢驗。 -
However, the application of global tidal model to the study of shallow sea tides is much worse in the accuracy. tidal signal in topex / poseidon altimetric data is the largest contributor to sea surface height variability and accounts for more than 80 % of the signal variance. so it is urgent to develop tide model in the shallow area wi th high accuracy
潮汐是高度計資料海面變化中最大的成份，占總變化80以上，伴隨著衛星高度計資料在海洋研究中的廣泛應用，發展基於衛星高度計資料的高精度淺海潮汐模型成為進一步利用高度計資料研究其它物理海洋問題的基礎。
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