今天继续系统学习普林斯顿大学的stata教程,
共约80多页,今日学习约20多页。
今天学习和阅读约3.5小时,累计阅读94小时。
简单总结下主要学习内容:
ANCOVA via the anova Command
anova wt2 group wt1, cont(wt1)
Number of obs = 72 R-squared = 0.2777
Root MSE = 6.97818 Adj R-squared = 0.2458
Source | Partial SS df MS F Prob > F
-----------+----------------------------------------------------
Model | 1272.78193 3 424.260643 8.71 0.0001
|
group | 766.27283 2 383.136415 7.87 0.0008
wt1 | 353.794971 1 353.794971 7.27 0.0089
|
Residual | 3311.26248 68 48.6950365
-----------+----------------------------------------------------
Total | 4584.04441 71 64.5640058
|