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发帖数: 538 | 1 ☆─────────────────────────────────────☆
hemmingchen (天高海阔) 于 (Wed Jan 28 09:14:52 2009) 提到:
Suppose I have a large data set collected from many different sites. I try
to analyze the data with PROC GLM for two effects (e.g. gender---male and
female, and blood types---O, AB, B, A). When I use PROC GLM for all sites
with combining gender and blood types to be a new variable as Gen_Blood, “
PROC GLM with Tukey lines” works perfectly for all sites together.
However, when I try to use “BY sites”, |
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