A fixed effects model is specified based on theories and the nature analysis 在充分了解理論和我國(guó)實(shí)踐的基礎(chǔ)上,運(yùn)用固定效應(yīng)方法建立我國(guó)資本結(jié)構(gòu)模型。
Empirical testing is conducted by using panel data with pooled regression model , fixed effect model and random effect model 通過分析,從全國(guó)來看,人均gdp 、市場(chǎng)需求和規(guī)模、聚集效應(yīng)、開放度是影響fdi的主要因素。
Methods using an example to illustrate different statistical models ( fixed effects models and mixed models ) in sas procedures for repeated measures data in clinical trials 方法通過實(shí)例說明并比較各種固定效應(yīng)模型和混合模型的優(yōu)缺點(diǎn)。
Results there are two important data analysis strategies for comparing the different effects between the two treatment groups : ( 1 ) fixed effects model , such as independent t test , analysis of variance and analysis of covariance ; ( 2 ) linear mixed models 結(jié)果臨床試驗(yàn)研究資料常為重復(fù)測(cè)量資料,比較各處理組的測(cè)量值差別是否有顯著性,可以采用傳統(tǒng)的統(tǒng)計(jì)方法如t檢驗(yàn)、方差分析和協(xié)方差分析等;也可以采用混合模型對(duì)整個(gè)研究過程中所有時(shí)點(diǎn)的測(cè)量值進(jìn)行分析。