Hi @ninjasrini! Welcome!

It's possible to run a 3-way factorial ANOVA in R without any add-on packages, using only the tools in the core `stats`

package. Here's a nice quick reference to how this is done:

However, if you're using ANOVA and coming from SPSS or SAS, you should know that the people who wrote R's core ANOVA functions (`aov()`

and `anova()`

) took a different side in the Sums of Squares wars. These references have lots more info:

- R Companion: Type I, II, and III Sums of Squares (You may also be interested in the same author's page on factorial ANOVA: R Handbook: Factorial ANOVA: Main Effects, Interaction Effects, and Interaction Plots)
- Anova – Type I/II/III SS explained | R-bloggers
- How can I get Type III tests of fixed effects in R? | R FAQ

If you'd like help translating a specific older tutorial you've already found into more modern terms, then a link would be helpful! It certainly can be frustrating that the internet is full of advice, but not all of it is still relevant or up to date .

This sounds like it might be a separate problem? If so, it's probably best to start a new topic focusing on just the specific trouble you're having with these packages. In order for helpers here to understand what's going on, you'll need to *at least* provide the code you've been trying, the errors you've been seeing, and the output of `sessionInfo()`

. But a self-contained, reproducible example is the gold standard, and the surest path to helping people help you.