statistic level distribution 中文意思是什麼

statistic level distribution 解釋
統計電平分佈
  • statistic : adj 統計(上)的,統計學(上)的。 statistic data 統計資料。 statistic figures 統計數字。n 〈僅用...
  • level : n 1 水平儀,水準儀;水準測量。2 水平線,水平面;水平狀態;平面,平地。3 水平,水準;水位;標準;...
  • 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...
  1. This article is based on statistic and analysis of the long - term observation data of the groundwater in the karst basin from 1987 to 2005 and systematically discusses the water level of karst groundwater, the pumping volume and the carved distribution regulation because of over - pumping water and puts forward some specific measures to reasonably development and utilization of groundwater resources

    摘要通過覆蓋型盆地巖溶盆地中取水深井1987年2005年盆地地下水長觀資料統計分析,系統探討了宕溶地下水的水位、取水量以及抽水產生的塌陷分佈規律,提出了合理開發利用地下水資源的具體措施。
  2. First, the standard errors computed under the assumptionthat the error term is independent identical distribution will be biased. second, theassumption of independence is unlikely to satisfied. in the panel data analysis modelwith hierarchical structure, hierarchical effects, nested effects, time effects are seted. then the dissertation deduced parameter estimation and hypothesis test statistic andits probability distribution and analyze the hierarchical panel data set : eastern china, central china and western china are the top level, and the prc ’ s province, cities, and autonomous regions are bottom level

    然後針對目前面板數據分析過程中存在的兩方面問題,即一方面在利用面板數據模型進行分析時,標準誤差的計算是基於誤差項相互獨立並且同分佈的假設,如果誤差項是相關的將會造成估計有偏的後果;另一方面關于獨立性這一假設本身就難以滿足;提出多層嵌套面板數據模型,設定了層效應、嵌套效應以及時間效應參數,研究了多層嵌套模型的參數估計量和假設檢驗統計量及其分佈。
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