Styles and Themes
The reporter package now supports styles and themes for HTML reports. Styling for more output types will be supported in future versions.
Custom Style
To create a custom style, use the create_style()
function. This function allows you to control colors and bolding for
many common elements of a report. The create_style()
function returns a style object, which can then be passed to the style
parameter of the add_style() function. Here is an example
of a custom style:
library(reporter)
# Create temporary path
tmp <- file.path(tempdir(), "example12a.html")
# Read in prepared data
df <- read.table(header = TRUE, text = '
var label A B
"ampg" "N" "19" "13"
"ampg" "Mean" "18.8 (6.5)" "22.0 (4.9)"
"ampg" "Median" "16.4" "21.4"
"ampg" "Q1 - Q3" "15.1 - 21.2" "19.2 - 22.8"
"ampg" "Range" "10.4 - 33.9" "14.7 - 32.4"
"cyl" "8 Cylinder" "10 ( 52.6%)" "4 ( 30.8%)"
"cyl" "6 Cylinder" "4 ( 21.1%)" "3 ( 23.1%)"
"cyl" "4 Cylinder" "5 ( 26.3%)" "6 ( 46.2%)"')
# Create custom style
sty <- create_style(font_name = "Arial",
font_size = 10,
background_color = "WhiteSmoke",
border_color = "Grey",
title_font_size = 12,
title_font_bold = TRUE,
title_font_color = "SteelBlue",
table_header_background = "Tan",
table_header_font_bold = TRUE,
table_header_font_color = "White",
table_body_background = "White",
table_body_stripe = "Wheat",
table_stub_background = "Tan",
table_stub_font_color = "White",
table_stub_font_bold = TRUE
)
# Create table
tbl <- create_table(df, first_row_blank = TRUE, borders = c("all")) %>%
stub(c("var", "label")) %>%
column_defaults(width = 1.25) %>%
define(var, blank_after = TRUE, label_row = TRUE,
format = c(ampg = "Miles Per Gallon", cyl = "Cylinders")) %>%
define(label, indent = .25) %>%
define(A, label = "Group A", align = "center", n = 19) %>%
define(B, label = "Group B", align = "center", n = 13) %>%
titles("Table 1.0", "MTCARS Summary Table with Custom Style",
borders = "none") %>%
footnotes("* Motor Trend, 1974", borders = "outside")
# Create report and add custom style
rpt <- create_report(tmp, output_type = "HTML", font = "Arial") %>%
add_content(tbl) %>%
add_style(sty)
# Write out report
write_report(rpt)
# View report
# file.show(tmp)
Themes
A Theme may be applied to a report using the function
add_style() and passing a theme name to the theme
parameter. Currently there are seven themes available: “MidnightBlue”,
“SteelBlue”, “DarkRed”, “SeaGreen”, “SlateGrey”, “Plain”, and
“SASDefault”. Here is an example using a named theme:
library(reporter)
# Create temporary path
tmp <- file.path(tempdir(), "example12b.html")
# Read in prepared data
df <- read.table(header = TRUE, text = '
var label A B
"ampg" "N" "19" "13"
"ampg" "Mean" "18.8 (6.5)" "22.0 (4.9)"
"ampg" "Median" "16.4" "21.4"
"ampg" "Q1 - Q3" "15.1 - 21.2" "19.2 - 22.8"
"ampg" "Range" "10.4 - 33.9" "14.7 - 32.4"
"cyl" "8 Cylinder" "10 ( 52.6%)" "4 ( 30.8%)"
"cyl" "6 Cylinder" "4 ( 21.1%)" "3 ( 23.1%)"
"cyl" "4 Cylinder" "5 ( 26.3%)" "6 ( 46.2%)"')
# Create table
tbl <- create_table(df, first_row_blank = FALSE, borders = "all") %>%
stub(c("var", "label")) %>%
column_defaults(width = 1.25) %>%
define(var, blank_after = TRUE, label_row = TRUE,
format = c(ampg = "Miles Per Gallon", cyl = "Cylinders")) %>%
define(label, indent = .25) %>%
define(A, label = "Group A", align = "center", n = 19) %>%
define(B, label = "Group B", align = "center", n = 13) %>%
titles("Table 1.0", "MTCARS Summary Table with SteelBlue Theme",
borders = "none") %>%
footnotes("* Motor Trend, 1974", borders = "outside")
# Create report and add theme
rpt <- create_report(tmp, output_type = "HTML", font = "Arial",
font_size = 12) %>%
set_margins(top = 1, bottom = 1) %>%
add_content(tbl) %>%
add_style(theme = "SteelBlue")
# Write out report
write_report(rpt)
# View report
# file.show(tmp)
View/Modify a Theme
Sometimes you may want to look at or modify an existing theme. The
function get_theme() allows you to do this. Simply pass the
theme name to get_theme() and it will return the theme as a
style object. From there you can print the style object to see how it
was defined. You can also modify it to suit your own preferences. Here
is an example of how to view and modify a theme.
library(reporter)
library(magrittr)
tm <- get_theme("SteelBlue")
print(tm)
# # A style specification:
# - font_name: 'Arial'
# - font_size: 10
# - text_color: 'DimGrey'
# - title_font_size: 11
# - title_font_bold: TRUE
# - title_font_color: 'SteelBlue'
# - border_color: 'Grey'
# - table_header_background: 'SteelBlue'
# - table_header_font_bold: TRUE
# - table_header_font_color: 'LightGrey'
# - table_body_background: 'White'
# - table_body_stripe: 'WhiteSmoke'
# - table_stub_background: 'SteelBlue'
# - table_stub_font_color: 'LightGrey'
# - table_stub_font_bold: TRUE
# Modify theme
tm$table_stub_background <- "Orange"
tm$table_stub_font_color <- "White"
# Create temporary path
tmp <- file.path(tempdir(), "example12c.html")
# Read in prepared data
df <- read.table(header = TRUE, text = '
var label A B
"ampg" "N" "19" "13"
"ampg" "Mean" "18.8 (6.5)" "22.0 (4.9)"
"ampg" "Median" "16.4" "21.4"
"ampg" "Q1 - Q3" "15.1 - 21.2" "19.2 - 22.8"
"ampg" "Range" "10.4 - 33.9" "14.7 - 32.4"
"cyl" "8 Cylinder" "10 ( 52.6%)" "4 ( 30.8%)"
"cyl" "6 Cylinder" "4 ( 21.1%)" "3 ( 23.1%)"
"cyl" "4 Cylinder" "5 ( 26.3%)" "6 ( 46.2%)"')
# Create table
tbl <- create_table(df, first_row_blank = FALSE, borders = "all") %>%
stub(c("var", "label")) %>%
column_defaults(width = 1.25) %>%
define(var, blank_after = TRUE, label_row = TRUE,
format = c(ampg = "Miles Per Gallon", cyl = "Cylinders")) %>%
define(label, indent = .25) %>%
define(A, label = "Group A", align = "center", n = 19) %>%
define(B, label = "Group B", align = "center", n = 13) %>%
titles("Table 1.0", "MTCARS Summary Table with Modified Theme",
borders = "none") %>%
footnotes("* Motor Trend, 1974", borders = "outside")
# Create report and add modified theme
rpt <- create_report(tmp, output_type = "HTML", font = "Arial",
font_size = 12) %>%
set_margins(top = 1, bottom = 1) %>%
add_content(tbl) %>%
add_style(style = tm)
# Write out report
write_report(rpt)
# View report
# file.show(tmp)
Theme Gallery
In addition to the SteelBlue theme shown above, there are six more themes. Here is a sample of each:
