Error on "How to do Repeated Measures ANOVAs in R" tutorial's code

[mtcruz]

I do not know if issues related to the "The Psycho Blog" should be posted here, but I found no other place to report this issue. I apologize in advance if this is not the proper place.

On the "How to do Repeated Measures ANOVAs in R", written by @DominiqueMakowski, some code the examples put there do not work. Specifically there seems to be an misunderstanding with what the get_contrasts function does.
The tutorial instructs one to:

We have to provide the model (here called fit) and the factors we want to contrast

results <- get_contrasts(fit, "Emotion_Condition")
print(results$contrasts)

However this returns NULL.
It seems that what was really intended is print(contrasts)

On another part of the text it says

The best way to do it is to estimate means based on the fitted model (marginal means). Those were automatically computed when running the get_contrasts function. We just have to extract them.

However I could not find the estimate means inside of get_contrast output. I think get_means(fit) would be the way to go here. This error makes plotting the data impossible if one is following the tutorial.

EDIT: The second part of the tutorial that addas participant sex as a factor uses the correct function to get the estimated means.

estimated_means <- get_means(fit, "Emotion_Condition * Participant_Sex")
estimated_means

Although I am not sure if "Emotion_Condition * Participant_Sex" is needed.

[DominiqueMakowski]

@mtcruz Apologies, somehow I missed this issue. For future reference, the new psycho version has been reorganized and some of its functions were improved and moved to other packages:

• analyze() and other functions not included in psycho 0.5.0 #115
• Missing functions psycho package easystats/easystats#58 (comment)