Creating-scatterplot-with-ggplot-in-R-programming

make sure to install all the packages below.

pacman::p_load(datasets, pacman, psych, rio, tidyverse)

Using qplot scatterplot

qplot(Petal.Width, Petal.Length, data = iris)

Colored by species

qplot(Petal.Width, Petal.Length, color = Species, data = iris)

Using ggplot

Basic scatterplot

ggplot(data = iris, mapping = aes(x = Petal.Width, Petal.Length)) + geom_point()

Scatterplot, jittered

ggplot(data = iris, mapping = aes(x = Petal.Width, Petal.Length)) + geom_jitter()

Scatterplot, jittered, variable size, colored by species

ggplot(data = iris, mapping = aes(x = Petal.Width, Petal.Length, size = Sepal.Length, color = Species)) + geom_jitter(alpha = 0.5)

Scatterplot, jittered, colored by species, and fitting a line

ggplot(data = iris, mapping = aes(x = Petal.Width, Petal.Length, size = Sepal.Length, color = Species)) + geom_point(size = 3) + geom_smooth(method = lm)

Scatterplot, jittered, colored by species, and fitting a line and density

ggplot(iris, mapping = aes(x = Petal.Width, Petal.Length, color = Species)) + geom_point(size = 3) + geom_smooth(method = lm) + geom_density2d(alpha = 0.5) + theme(legend.position = "bottom")