selection of average 中文意思是什麼
selection of average
解釋
平均數的選擇-
Specially, based on risk - metric and factor variables, the author discusses multi - factor asset pricing model. in theoretical analysis, the author attempts to release the assumption of index ' s random walk, proves a portfolio selection model suitable for the linear index level moreover, based on assets un - exchangeable, the author brings forward asset pricing models for b - shares, h - shares and non - circulated - shares. the author also brings forward multi - factor asset pricing model based on risk - metric indices, such as coefficient of beta, standard variance, standard semi - variance, average absolute deviation, value at risk, and factor variables, such as circulated market equity, exchange ratio, short - term historical return
在理論分析時，作者嘗試放鬆指數水平滿足隨機遊走過程的假設，推導出指數水平呈線性趨勢的資產組合選擇模型；此外，作者基於資產不可交易這一假設，提出了b股、 h股和非流通股等情形的資產定價模型，並基於系數、標準差、標準半方差、平均絕對離差和風險價值等風險度量指標以及流通市值、換手率、短期歷史收益率等因素變量提出了四因素資產定價模型。 -
This paper concludes that an indicator system based on eva, and assisted with mva, balance scorecard and eva driving factors can fulfill the required function ; 3. through discounter cash flow model, this paper decomposes key financial driving factors, which are competitive advantage period, the difference between the rate of profit and weighted average cost of capital, profit growth rate and the scale of invested capital ; 4. this paper concludes that the appropriate selection of financial management target, the establishment of financial appraisal model and financial performance indicator system, the decomposition of driving factors compose a complete framework to guide the enterprise in the process of striving for the sustainable growth
本文分解得出企業價值增長的關鍵財務驅動因素- -收益增長年限、回報率差、收益增長率以及資本規模，它們全面摘要涵蓋了企業戰略、籌資、經營、稅收、收益分配以及投資等各方面的活動: 4 .本文認為財務管理目標的恰當選取，財務評估模型和財務評價指標體系的構建以及驅動因素的分解，能夠有效地指導企業在追求持續增長過程中目標制定、目標執行以及評估反饋等各個層面的需求，並使得企業在實踐中能夠有效地進行戰略規劃和財務運作。 -
During the research on substation location in rural power subsystem planning, builds space optimal model on the basis of theory of christaller ? center geography, which utilizing economic supply radius to optimize the number of substations based on the average load density. with the reference of the said number, uses the method of alternative address selection to achieve the optimal solution
在農村電網變電所布局子系統規劃研究中，以克里斯塔勒的中心地理論為基礎，建立了基於gis的變電所布局空間優化模型，該模型利用經濟供電半徑優化平均負荷密度下的變電所數量，並以此為參照，採用交替選址分劃法求得變電所的合理布局。 -
The avg function returns the average value of a column in a selection. null values are not included in the calculation
使用avg函數可以返回所有選中列值的平均值。 null值不包括在內。 -
Nowadays the research on the performances of security investment funds in china is mainly concerned with two aspects. the one is the feasibility of the theoretical model of performances and the simple computation by means of indicator formulation, which can be used to compute certain performance indicators, such as average profit rate per week, p coefficient, johnson coefficient, sharp ratio, var, average profit rate per week / var and etc. the other one is the research on the degree to which funds holdings are concentrated and research on the tendency of industry selection in the portfolios of funds managers. every part of market is trying to connect the portfolios selection of funds managers with the mar ket focuses and development directions, hoping that it can lead to the conversion and maturity of the ideas of market investment
目前，對于中國證券投資基金績效的研究與評估，基本上圍繞著兩個方面，即績效理論模型的可應用性探討或簡單的指標公式套算，計算某些績效指標，如平均周收益率，貝塔系數，詹森系數，特雷諾系數，夏普系數， var和平均周收益率var等幾項指標；和對基金持股集中度的研究，以及由此引伸的對基金經理的投資組合中的行業選擇傾向的研究，市場各方一直在試圖將基金經理的投資組合選擇與市場熱點和發展方向連接起來，並希望籍此引導市場投資理念的轉變與成熟。 -
After analyzing and studying the characteristics of the sequence generation of grey system theory, this paper proposes the concept of three - dimensional data sequence, extends the grey system theory from one - dimensional data sequence to three - dimensional data sequence and enlarges the application range of the theory in engineering. this paper also proposes a decomposition coefficient selection method and a partial concave - convex characteristic decision method to the preference generation, which can solve the problem that the internal point generated by the original method was inconsistent with the actual system. considering the errors existed in ends generation with step ratio and smooth ratio methods, the author proposes a tendency average generation and improves the quality of the generation greatly
灰色建模與逆向工程兩者有其十分相似的內在關系，本文通過學科交叉，深入研究兩種不同學科理論，在繼承灰色系統理論這一我國原創性理論思想的基礎上，補充和豐富了新的內涵並將其滲透到逆向工程中的數據測量與數據處理技術的應用之中，使機械工程中甚少應用的這一灰色系統理論得到了進一步的拓展，主要成果如下: 1 .分析研究了灰色系統理論中序列生成的特點，提出了三維數據序列的概念，將灰理論的一維數據序列拓展到三維數據序列，拓寬了灰理論在工程中的應用范圍;提出了有偏生成演算法中生成系數分解選取方法和數據序列點局部凹凸特性決定生成系數的方法，解決了原有方法生成內點與實際系統不一致的現象;針對級比和光滑比用於生成端點有較大誤差的情況，提出了趨勢均值生成演算法，大大提高了端點生成的精度。 -
( 2 ) there is no evident that they have market - timing ability, but have certain security selection ability. ( 3 ) there is no significant effect of the fund scale on fund performance. ( 4 ) on average, the performance of the open - end funds is better than that of the close - end funds and index funds can overwin market benchmark
上述研究的主要結論為： （ 1 ）在大盤處於弱勢背景的情況下，我國證券投資基金的下跌幅度小於市場基準的下跌幅度，其業績表現優於市場基準； （ 2 ）我國證券投資基金不具備市場時機選擇能力，但具有一定的證券選擇能力； （ 3 ）總體而言，基金規模對基金的業績表現沒有顯著性影響； （ 4 ）開放式基金業績表現從整體上優于封閉式基金，指數化基金的業績能超越市場基準。
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