R/theme_LC.R

In kuhnrl30/LendingClubData: Dataset of Historical Loans Issued by Lending Club

#' Theme for charts in Lending Club ecosystem 
#' 
# Create a standard theme for the Lending Club project
#' @param base_size base font size
#' @param base_family base text family
#' @importFrom ggplot2 element_line
#' @importFrom ggplot2 element_rect
#' @importFrom ggplot2 element_text
#' @importFrom ggplot2 margin
#' @importFrom ggplot2 element_blank
#' @importFrom ggplot2 rel
#' @importFrom ggplot2 unit
#' @importFrom ggplot2 theme
#' @importFrom ggplot2 scale_colour_brewer
#' @importFrom ggplot2 scale_fill_brewer
#' @export

theme_LC<- function (base_size = 11, base_family = ""){

    half_line <- base_size/2

    list(scale_colour_brewer(palette="Set1"),

         scale_fill_brewer(palette="Set1"),

    theme( line = element_line(	colour = "black",
                                size = 0.75,
                                linetype = 1,
                                lineend = "butt"),
           rect = element_rect(fill = "white",
                               colour = "black",
                               size = 0.5,
                               linetype = 1),
           text = element_text(family = base_family,
                               face = "plain", colour = "black",
                               size = base_size, lineheight = 0.9,
                               hjust = 0.5,
                               vjust = 0.5,
                               angle = 0,
                               margin = margin(),
                               debug = FALSE),
           axis.line = element_blank(),
           axis.line.x = NULL,
           axis.line.y = NULL,
           axis.text = element_text(size = rel(0.8), colour = "grey30"),
           axis.text.x = element_text(margin = margin(t = 0.8 * half_line/2), vjust = 1),
           axis.text.x.top = element_text(margin = margin(b = 0.8 * half_line/2), vjust = 0),
           axis.text.y = element_blank(),
           axis.text.y.right = element_text(margin = margin(l = 0.8 * half_line/2), hjust = 0),
           axis.ticks.y = element_blank(),
           axis.ticks.x = element_line(colour = "grey20"),
           axis.ticks.length = unit(half_line/2, "pt"),
           axis.title.x = element_text(margin = margin(t = half_line), vjust = 1),
           axis.title.x.top = element_text(margin = margin(b = half_line), vjust = 0),
           axis.title.y = element_blank(),
           axis.title.y.right = element_text(angle = -90, margin = margin(l = half_line), vjust = 0),
           legend.background = element_rect(colour = NA),
           legend.spacing = unit(0.4, "cm"),
           legend.spacing.x = NULL,
           legend.spacing.y = NULL, legend.margin = margin(0.2, 0.2, 0.2, 0.2, "cm"),
           legend.key = element_rect(fill = "grey95", colour = "white"),
           legend.key.size = unit(1.2, "lines"),
           legend.key.height = NULL,
           legend.key.width = NULL,
           legend.text = element_text(size = rel(0.8)),
           legend.text.align = NULL, legend.title = element_text(hjust = 0),
           legend.title.align = NULL, legend.position = "right",
           legend.direction = NULL, legend.justification = "center",
           legend.box = NULL, legend.box.margin = margin(0, 0, 0, 0, "cm"),
           legend.box.background = element_blank(),
           legend.box.spacing = unit(0.4, "cm"),
           panel.background = element_blank(),
           panel.border = element_blank(),
           panel.grid.major = element_line(colour = "white"),
           panel.grid.minor = element_line(colour = "white", size = 0.25),
           panel.spacing = unit(half_line, "pt"),
           panel.spacing.x = NULL,
           panel.spacing.y = NULL,
           panel.ontop = FALSE,
           strip.background = element_rect(fill = "#eb6864", colour = "#000000"),
           strip.text = element_text(colour = "#ffffff", size = rel(0.8)),
           strip.text.x = element_text(margin = margin(t = half_line, b = half_line)),
           strip.text.y = element_text(angle = -90, margin = margin(l = half_line, r = half_line)),
           strip.placement = "inside",
           strip.placement.x = NULL,
           strip.placement.y = NULL,
           strip.switch.pad.grid = unit(0.1, "cm"),
           strip.switch.pad.wrap = unit(0.1, "cm"),
           plot.background = element_rect(colour = "white"),
           plot.title = element_text(size = rel(1.2), hjust = 0, vjust = 1, margin = margin(b = half_line * 1.2)),
           plot.subtitle = element_text(size = rel(0.9), hjust = 0, vjust = 1, margin = margin(b = half_line * 0.9)),
           plot.caption = element_text(size = rel(0.9), hjust = 1, vjust = 1, margin = margin(t = half_line * 0.9)),
           plot.margin = margin(half_line, half_line, half_line, half_line),
           complete = TRUE)
    )
    }