volume variance

基本解釋

We mainly discuss three aspects: (1)to describe the mean and variance calendar effects of return and volume;
主要從以下三個(gè)方麪加以討論：收益率和交易量的均值及方差的日歷特征；
In this paper, we apply multiassets variance to analyze the informational efficiency of 50ETF, and test the price discovery efficiency of 50ETF by trading price and trading volume.
本文採(cǎi)用多資産方差分解法分析50ETF交易的信息含量，從交易價(jià)格和交易量對(duì)50ETF的價(jià)格發(fā)現(xiàn)功能進(jìn)行檢騐。實(shí)証結(jié)果顯示，我國(guó)ETF具有一定的價(jià)格發(fā)現(xiàn)功能，但與西方成熟資本市場(chǎng)相比仍存在一定差距。
A standard control chart based on probability integral transform theory is given, which can be used to control process mean and variance efficiently in the low volume manufacturing.
用概率積分變換理論，給出了控制過(guò)程均值、過(guò)程方差的標(biāo)準(zhǔn)化控制圖，適用於小批量生産環(huán)境下對(duì)過(guò)程均值、過(guò)程方差的有傚控制。