jamovi

Thanks for taking the time to help!

the code I am using is: dat <- read.csv("PSY.308b.DA2.csv") the issue is the same for all files i have tried
I am on a 2017 macbook pro, running macOS Sierra, version10.12.6.
For R studio I am using version Version 1.1.383

Thanks again,
Brad

could you attach the data file, and provide the anova command you are using too?

with thanks

Sure,
jmv::anova(data = dat, dep = 'HELPING', factors = c('HASTE'), effectSize = 'partEta', postHoc = c('HASTE'), postHocCorr = 'tukey', homo = TRUE)

hmm, what does excuting in R:

R.version

output?

with thanks

platform x86_64-apple-darwin15.6.0
arch x86_64
os darwin15.6.0
system x86_64, darwin15.6.0
status
major 3
minor 4.2
year 2017
month 09
day 28
svn rev 73368
language R
version.string R version 3.4.2 (2017-09-28)
nickname Short Summer

Jonathan,
My professor was able to finally find a solution.

as.factor(dat$HASTE)

was used although, class(dat$HASTE) gave us the output
[1] "integer"

We then used dat$HASTE<-as.factor(dat$HASTE), which successfully defined HASTE as a factor
Running the ANOVA then gave us the error

Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) :
there is no package called ‘quantreg’

Instaling "Quantreg" fixed my issue with ANOVA's and Levene's test, although we have no idea why this package was not installed already.

Thanks for all your help!

awesome brad!

i'll keep working on this, and try to get to the bottom of it, but i'm glad you've got something working.

with thanks

Hello, I am a teaching assistant in this same class 3 years later (but during the coronavirus lockdowns, so not as easily able to get help from people around me) and I'm having this same problem even after trying what was listed in this thread. I hope to be able to troubleshoot with someone on here!

hi, could you start a new thread?

with thanks