Add Exploristics fill to a ggplot2 figure.

This function returns a ggplot with an Exploristics colour scheme added to it. There are 3 colour palettes to choose from RGB, a darker RGB and Mono.

Usage

exploristics_fill(plot, colour_pal = "Expl_RGB", rev_gradient = FALSE)

Arguments

plot

A ggplot2 figure (S3: gg, ggplot).

colour_pal

The colour palette to use. Can be one of Expl_RGB, Expl_RGB_dark or Expl_Mono. Defaults to Expl_RGB.

rev_gradient

Should the reverse gradient of the colour palette be used (only for continuous variables). Defaults to FALSE.

Details

This function sets the fill of the ggplot to a palette matching an Exploristics colour scheme. A gradient of the palette will be applied for continuous variables.

• Expl_RGB is a palette of 6 colours including blues, reds, green and yellow.

• Expl_RGB_dark is a palette of darker shades of the 6 colours within Expl_RGB.

• Expl_Mono is a palette of 6 colours ranging from a dark navy through grey to white.

See also

scale_color_manual

scale_color_gradientn

Examples

library(ggplot2)

## generate a plot with the Exploristics theme
## if you want to use a numeric variable as discrete use `as.factor()` when setting `fill`
cars_plot <- ggplot(data = mtcars, aes(x = cyl, y = mpg, fill = as.factor(cyl))) +
geom_bar(stat="identity") +
exploristics_theme()

## adding the colour scheme can be written as one line
exploristics_fill(cars_plot, colour_pal="Expl_RGB_dark")



library(magrittr)

## or using a pipe
cars_plot %>%
exploristics_fill(colour_pal="Expl_RGB_dark")




## bar plots can appear to have "lines" within the bars if only setting colour
## if this happens set the colour to the same as the fill in the plot aes()
## and add exploristics_colour()
cars_plot <- ggplot(data = mtcars, aes(x = cyl, y = mpg, fill =
as.factor(cyl),colour=as.factor(cyl))) +
geom_bar(stat = "identity") +
exploristics_theme()

cars_plot %>%
exploristics_fill(colour_pal = "Expl_RGB_dark") %>%
exploristics_colour(colour_pal = "Expl_RGB_dark")