<P>sas 内部统计课程。Analysis of CoVar 与混合模型。</P>
<P>适用于比较</P>
<P><BR>* both the slopes and intercepts for the treatments are the same.</P>

<P>* the intercepts are the same, but the slopes are different. </P>
<P><BR>* the intercepts are different, but the slopes are the same. <BR></P>
<P>* both the slopes and the intercepts are different. <BR></P>
<P>* the intercepts are different and the slopes are zero. </P>