R ggpairs rotate whole matrix-CodePudding

Okay so I'm trying to make a scatterplot matrix with ggpairs (see example below). But I want the whole matrix to be rotated counter-clockwise 90 degrees. And with this, I then want to rotate the axis text. Anytime I try to add any theme() onto ggpairs() and try to display the plot, I get NULL. Please help, this should be simple.

library(dplyr)
library(ggplot2)
library(GGally)
library(MASS)
cars <- dplyr::select(Cars93, Type, Price, MPG.city, MPG.highway, 
              EngineSize, Origin)
ggpairs(cars)

Matrix as it is now

What I want the matrix to look like

CodePudding user response：

This isn't exactly the same as your image, but I think this is what you're looking for.

ggpairs(cars,
        upper = list(continuous = "points", combo = "facethist", 
                     discrete = "facetbar", "na"),
        lower = list(continuous = "cor", combo = "box_no_facet", 
                     discrete = "count", "na"),
        diag = list(na = "naDiag", discret = "barDiag", 
                    continuous = "densityDiag"))

The bottom and top row are swapped from what you asked for, but the orientation is what you were looking for (I think!).

CodePudding user response：

You can use the function viewport from grid in a print call to turn your object 90 like this:

library(dplyr)
library(ggplot2)
library(GGally)
library(MASS)
library(grid)
cars <- dplyr::select(Cars93, Type, Price, MPG.city, MPG.highway, 
                      EngineSize, Origin)
p <- ggpairs(cars)
print(p, vp=viewport(angle=90, width = unit(4.5, "inches"), height = unit(4.5, "inches")))

^{Created on 2022-08-16 by the reprex package (v2.0.1)}