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Interpretation of plots

Posted: Thu May 20, 2021 8:02 am
by Jonas123
Hi,

i have 2 questions about the interpretation of 2 different plots:

1.
I have had a box plot displayed in the descriptive statistics. Now I wonder if the horizontal line shows the median and the whiskers boundaries show the 95% confidence interval?

2.
I have a correlation matrix plotted. How can the shaded area be interpreted? Is it the 95% confidence interval?

Thank you very much for your support
Kind regards
Jonas

Re: Interpretation of plots

Posted: Thu May 20, 2021 1:22 pm
by MAgojam
Hi, @Jonas123.
I am referring to jamovi v1.8.1

(A1)
The line through the box is the median, but if you have selected "Mean" for the Box Plot, a small square should appear indicating the mean.
For (whiskers boundaries), it's not 95%CI, but you can find a specific past answer of mine here in the forum:
viewtopic.php?f=2&t=224#p870

(A2)
For the plot of the correlation matrix, jamovi uses some functions present in the "GGally" library (extension of ggplo2) and in particular the "ggpairs" function, which if the variables are continuous, produces a scatterplot, with "Regression line", and shaded area for "Standard error".

Cheers,
Maurizio

Re: Interpretation of plots

Posted: Fri May 21, 2021 10:09 pm
by Jonas123
Thx for the explanations :sunglasses: :sunglasses: