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ggconf provides theme2(), a flexible ggplot2::theme() interface.


g <- ggplot(iris) + geom_point(aes(Sepal.Width, Sepal.Length))

g + theme2(ax.txt(sz=20, f="bold"),
           ax.line(col='gray60', sz=2),
ggconf Example
ggconf Example

The following ggplot2 command generates the same plot.

g + ggplot2::theme(axis.text = element_text(size=20, face="bold"),
                   axis.line = element_line(colour="gray60", size=2),
                   panel.background = element_rect(fill="white")

Getting Started

If you replace your ggplot2::theme() with ggconf::theme2(), ggconf would work. All of the followings return the same plot, and you can use the style you prefer the most.

g + theme( axis.text = element_text(size=20, face="bold")) # Style 1: ggplot2 default (50 characters)
g + theme2(axis.text = element_text(size=20, face="bold")) # Style 2: ggconf
g + theme2(axis.text(size=20, face="bold"))                # Style 3: ggconf without element_text()
g + theme2(ax.txt(sz=20, face="bold"))                     # Style 4: ggconf shorter but readable
g + theme2(at(z=20, f="bold"))                             # Style 5: ggconf shortest (25 characters)


ggconf Feature Overview
ggconf Feature Overview

Partial Match

Even if the unique identification is not possible for specified elements (e.g. theme element names or arguments), ggconf tries to execute its best estimate instead of just returning an error.

For the input theme2(ax.txt(sz=20, fc="bold"), ax.ln(c='gray60'),"white")), ggconf performs partial matches six times.


# install.packages("devtools")


The goal of ggconf is to make it less stressful to finalize your plots.

Raw ggplot2 plot

The following plot uses the ggplot2 default appearance settings.

gg <- ggplot(mtcars[1:20, ] %>% tibble::rownames_to_column() %>% 
             mutate(car_name = rowname, maker = gsub(" .*", "", car_name) ) ) + 
      #geom_label(aes(mpg, qsec, label = substr(car_name, 1, 13), color=maker),
      geom_point(aes(mpg, qsec, color=maker), size=8) +
      geom_text(aes(mpg, qsec, label=substr(maker, 1, 2)), color="white", fontface="bold") +
      labs(title = "Motor Trend Car Road Tests",
           subtitle = "Top 20 rows are extracted for demonstration", 
           caption = "Source: 1974 Motor Trend US magazine") + 
           scale_x_continuous(breaks=seq(10,34, 4))
ggconf Example
ggconf Example

For resolving these issues, you would add the following theme() configurations:

# If using ggplot2::theme():
gg + theme(
                   text = element_text(face="bold", size=24, family="Times New Roman"),
       panel.background = element_rect(fill="white"), = margin(0.2,0.2,0.2,0.2,"cm"), = element_rect(colour="black"),
             legend.key = element_rect(fill="white"),
        legend.position = "bottom",
            legend.text = element_text(size=rel(0.8)),
           legend.title = element_text(family="Consolas", colour="royalblue"),
             axis.title = element_text(family="Consolas", colour="royalblue"),
           axis.title.y = element_text(angle=0, vjust=0.5),
              axis.text = element_text(size=rel(1.1)),
              axis.line = element_line(arrow=arrow(type="open",angle=20), size=2),
             axis.ticks = element_line(size=1),
      axis.ticks.length = grid::unit(0.5,"cm"),
          plot.subtitle = element_text(face="plain", hjust=1),
            plot.margin = margin(0.3,0.3,0.3,0.1,"inch")
ggconf Example
ggconf Example

ggconf enables modifying these parameters with concice notations.

With ggconf

gg + 
       txt(f="bold", sz=24, family="Times New Roman"),    # make all text thicker/larger"white"),"black"),, .2, .2, .2, "cm"),
       lgd.title(family="Consolas", c="royalblue"),       # equally-spaced font
       axs.title(family="Consolas", c="royalblue"),       # colorize axis titles
       axs.title.y(angle=0, vjust=.5),                    # rotate and centerize y axis label
       axs.line(arrow=arrow(type="open", angle=20), z=2), # 
       axs.tick(sz=1),                                    # tick or ticks? It doesn't matter
       axs.tick.len(.5, "cm"),
       plt.subtitle(f="plain", hjust=1),
       plt.margin(.3, .3, .3, .1, "inch")                 # adjust margins

Other Works

ggconf draws inspiration from some other higher level programming languages including Bash, CoffeeScript, Lisp, and Ruby.

Current Implementation Status

ggconf is first released on August 24, 2017.