Created
May 5, 2015 02:36
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Moving up the ladder of multi variable visualisation (in R)
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library(ggplot2) | |
?mpg | |
head(mpg) | |
str(mpg) | |
# Identify a scatter point | |
attach(mtcars) | |
plot(mpg, wt) | |
identify(x = mpg, y = wt, n = 3, label = row.names(mtcars)) | |
detach(mtcars) | |
# Two Variables Viz | |
ggplot(mpg, aes(class, hwy)) + geom_point() | |
ggplot(mpg, aes(class, hwy)) + geom_jitter() | |
ggplot(mpg, aes(reorder(class, hwy), hwy)) + geom_point() | |
ggplot(mpg, aes(displ, hwy)) + geom_point() | |
# Three Variables Viz - Color (Cat., Cont.) | |
ggplot(mpg, aes(displ, hwy, colour = class)) + geom_point() | |
ggplot(mpg, aes(displ, hwy, colour = cyl)) + geom_point() | |
# Three Variables Viz - Size (Cat, Cont.) | |
ggplot(mpg, aes(displ, hwy, size = drv)) + geom_point() | |
ggplot(mpg, aes(displ, hwy, size = cyl)) + geom_point() | |
# Three Variables Viz - Shape (Cat) | |
ggplot(mpg, aes(displ, hwy, shape = drv)) + geom_point() | |
# Four Variables Viz - Combine Color, Shape & Size | |
ggplot(mpg, aes(displ, hwy, color = class, shape = drv)) + geom_point() | |
ggplot(mpg, aes(displ, hwy, color = class, size = drv)) + geom_point() | |
# Four - Six Variable Viz - Facetting + Color, Shape, Size | |
ggplot(mpg, aes(displ, hwy, color = class)) + geom_point() + facet_wrap(~ cyl) | |
ggplot(mpg, aes(displ, hwy, color = class)) + geom_point() + facet_grid(~ cyl) | |
ggplot(mpg, aes(displ, hwy)) + geom_point() + facet_grid(drv ~ cyl) | |
ggplot(mpg, aes(displ, hwy, color = class)) + geom_point() + facet_grid(drv ~ cyl) | |
ggplot(mpg, aes(displ, hwy, color = class, size = trans)) + | |
geom_point() + facet_grid(drv ~ cyl) | |
ggplot(mpg, aes(displ, hwy, color = class, size = trans)) + | |
geom_point(alpha = 0.4) + facet_grid(drv ~ cyl) | |
# More than Three - Matrices (SPLOM, GGally) | |
plot(mpg) | |
plot(iris) | |
library(GGally) | |
mpg_select <- subset(mpg, select = c(displ, hwy, drv)) | |
plot(mpg_select) | |
ggpairs(mpg_select) | |
ggpairs(mpg_select, diag = list(continuous = "bar", discrete = "bar"), | |
axisLabels = 'show') | |
ggpairs(mpg_select, diag = list(continuous = "bar", discrete = "bar"), | |
upper = list(continuous = "density", combo = "dot"), | |
axisLabels = 'show') | |
# More than Three - Parallel Coordinates | |
ggparcoord(mpg, column = c(1:11), groupColumn = 4) | |
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