Force ggplot2 scatter plot to be square shaped
ggplot2, r, scatter-plot
Solution
If you want to make the distance scale points the same, then use coord_fixed():
p <- ggplot(...)
p <- p + coord_fixed() # ratio parameter defaults to 1 i.e. y / x = 1
If you want to ensure that the resulting plot is square then you would also need to specify the x and y limits to be the same (or at least have the same range). `xlim` and `ylim` are both arguments to `coord_fixed`. So you could do this manually using those arguments. Or you could use a function to extract out limits from the data.
Problem
I can force ggplot2 scatter plot to be square shaped with the same x and y scaling using `xlim()` and `ylim()`, but it needs manual calculation of the limits. Is there any more convenient way of doing it? By square shape I mean two requirements: - The same scale on x and y axis. - The equal length of x and y axis.