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depress
2002 Aug 07
3
Forcing integers to be nominal
...nominal.
The data are being loaded from an SPSS file and the independent variable
'YearColl' corresponds (surprisingly enough) to a student's year in
college. :-) The integers 1-4 are used in the dataset for this purpose.
My quick little anova gives this result:
> mir.aov <- aov(DepressT ~ YearColl, data=mir)
> summary(mir.aov)
Df Sum Sq Mean Sq F value Pr(>F)
YearColl 1 955.7 955.7 10.305 0.001474 **
Residuals 293 27172.5 92.7
---
Signif. codes: 0 `***' 0.001 `**' 0.01 `*' 0.05 `.' 0.1 ` ' 1
I was expecting the df for Year...