jamovi

Posted: **Tue Oct 26, 2021 9:40 pm**

Hello everyone. I am new to creating modules in jamovi. I have the following doubt: I am trying to create a confidence interval for variance, but when I run it in jamovi I get error.

This is what I wrote in the jamovi .a file

: CI variance image2.png (6.35 KiB) Viewed 6008 times

Then, in the R code (.b file) I write the following:

: CI variance image3.png (25.8 KiB) Viewed 6008 times

but, finally, in Jamovi the following happens

: CI variance image4.png (13.86 KiB) Viewed 6008 times

Could you tell me what can I do please? Thanks!

Posted: **Wed Oct 27, 2021 6:21 am**

hi,

so you've assigned the variable A to the 'variable' option. so self$options$variable will have the value 'A'. now consider the following:

var(self$options$variable)

the variance of 'A' is undefined, and you'll get a NA or similar.

i'd suggest you want to go:

Code: Select all

if (is.null(self$options$variable))  # if the user hasn't specified a variable, do nothing
    return()

variable <- self$data[[self$options$variable]]
v <- var(variable)
n <- length(variable)

etc.

cheers

jonathon

jamovi

Confidence interval for variance

Confidence interval for variance

Re: Confidence interval for variance