Interpretation of plots

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Jonas123
Posts: 2
Joined: Thu May 20, 2021 7:53 am

Interpretation of plots

Post 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
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MAgojam
Posts: 421
Joined: Thu Jun 08, 2017 2:33 pm
Location: Parma (Italy)

Re: Interpretation of plots

Post 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
Jonas123
Posts: 2
Joined: Thu May 20, 2021 7:53 am

Re: Interpretation of plots

Post by Jonas123 »

Thx for the explanations :sunglasses: :sunglasses:
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