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Here is a MWE:

library(ggplot2)

p<- ggplot(mtcars, aes(wt, mpg, color = factor(cyl))) +
geom_point() +
geom_smooth(method = "lm", formula = y~x)

Can someone please show me how to compute the dimensions of the plotted area ( that is the area which has the grey background NOT including the legend) ?

user2338823
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1 Answers1

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If I do not understand wrong the question, you are asking for the x and y limits of a graph. That can be set using: scale_x_continuous(limits = c(-10, 10)) or coord_cartesian(xlim = c(-10, 10)). It is answered here

Otherwise, if you are asking about the area created through the lines, that is the 95% confidence interval of your lm model. To see a better explanation, check here

Carles
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