多水平的回归模型 could be "multilevle modeling". You can use HLM program or SAS proc mixed to do it. You can download a free HLM (6.01) student version at: http://www.ssicentral.com/hlm/downloads.html
The student version is enough to use.
多水平的回归模型 could be "multilevle modeling". You can use HLM program or SAS proc mixed to do it. You can download a free HLM (6.01) student version at: http://www.ssicentral.com/hlm/downloads.html