[R] Running Omega in R

[Rui Barradas]

Hello,

I no nothing about package psych so if you ask whether this is the wrong 
list you can always try

maintainer("psych")
[1] "William Revelle <revelle at northwestern.edu>"

Hope this helps,

Rui Barradas

Em 15-01-2017 12:32, John Smith escreveu:
> Hi,
>
> I opened a question on stack overflow I’m hoping this mailing list can help with.
> I have a dataset below (this is made up but produces the same error I am getting)
>
> structure(list(Q1 = c(4, 5, 3, 5, 4, 5, 3, 5, 5, 5, 6,
> 3, 5, 4, 6, 5, 5, 6, 7, 4, 5, 5, 3, 4, 4, 5, 4, 3, 5, 4, 5, 5,
> 6, 6, 3, 6, 3, 4, 4, 4, 6, 5, 3, 2, 6, 6, 4, 5, 4, 3, 6, 4, 4,
> 5, 6, 2, 4, 3, 4, 6, 4, 6, 4, 5, 5, 6, 4, 6, 5, 5, 4, 5, 6, 6,
> 2, 5, 4, 3, 4, 4, 4, 6, 3, 3, 5, 4, 4, 4, 5, 5, 5, 3, 6, 6, 6,
> 6, 5, 4, 3, 5), Q2 = c(7, 4, 4, 4, 4, 6, 6, 6, 7, 6, 5,
> 6, 5, 4, 5, 6, 6, 6, 7, 5, 4, 4, 6, 6, 4, 4, 6, 2, 6, 5, 4, 6,
> 4, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 4, 4, 4, 4, 6, 2, 6, 6, 5, 4,
> 6, 6, 4, 4, 7, 6, 5, 5, 5, 5, 6, 5, 5, 4, 5, 5, 5, 4, 6, 7, 5,
> 5, 5, 6, 5, 6, 5, 6, 7, 2, 6, 5, 7, 3, 5, 5, 3, 3, 3, 7, 4, 5,
> 6, 6, 6, 5, 7), Q3 = c(5, 4, 5, 6, 4, 4, 5, 4, 2, 6, 5,
> 5, 5, 5, 7, 5, 5, 6, 7, 6, 3, 6, 6, 6, 5, 6, 6, 5, 5, 4, 5, 5,
> 6, 6, 5, 6, 5, 5, 4, 4, 6, 4, 4, 4, 4, 4, 4, 5, 5, 4, 5, 5, 4,
> 3, 5, 4, 5, 6, 6, 6, 4, 5, 5, 5, 6, 4, 5, 5, 7, 4, 5, 6, 6, 5,
> 5, 3, 3, 5, 4, 6, 5, 5, 1, 3, 5, 3, 2, 5, 4, 6, 6, 6, 6, 4, 6,
> 3, 6, 6, 6, 5), Q4 = c(6, 6, 4, 7, 4, 6, 7, 6, 7, 6, 6,
> 6, 5, 7, 7, 6, 6, 5, 7, 7, 6, 6, 7, 7, 6, 6, 6, 5, 6, 7, 5, 6,
> 7, 5, 4, 6, 4, 3, 6, 4, 6, 6, 6, 3, 5, 7, 5, 6, 4, 6, 7, 6, 7,
> 4, 6, 3, 5, 7, 5, 4, 6, 6, 4, 6, 5, 5, 5, 5, 7, 7, 7, 6, 6, 6,
> 5, 6, 6, 4, 5, 7, 6, 7, 3, 5, 6, 5, 6, 5, 5, 7, 7, 6, 6, 2, 7,
> 6, 6, 7, 7, 5)), .Names = c("Q1", "Q2", "Q3",
> "Q4"), row.names = c(NA, 100L), class = "data.frame")
>
>
> When i run Cronbach Alpha with R i get a result
>
> psych::alpha(construct,
>           na.rm = TRUE,
>           title = 'myscale',
>           n.iter = 1000)
>
>
> When i run Omega using R i get the following error message
>
> "Error in fac(r = r, nfactors = nfactors, n.obs = n.obs, rotate = rotate, : I am sorry: missing values (NAs) in the correlation matrix do not allow me to continue.
> Please drop those variables and try again. In addition: There were 50 or more warnings (use warnings() to see the first 50)"
>
> psych::omega(m = construct,
>        nfactors = 1, fm = "pa", n.iter = 1000, p = 0.05,
>        title = "Omega", plot = FALSE, n.obs = 100)
>
>
> Stackoverflow Link: http://stackoverflow.com/questions/41533231/running-omega-with-psych-library-in-r?noredirect=1#comment70278453_41533231
>
> If I have the wrong mailing list, could you direct me to the appropriate one (I’m aware it might not be an R issue but more of a stats question)
>
>
>
> Thank you for your time
>
>
>
> 	[[alternative HTML version deleted]]
>
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