shinypivottabler {shinypivottabler}

Shiny module to render and export pivot tables.

Description

Shiny module to render and export pivot tables.

Usage

shinypivottabler(
  input,
  output,
  session,
  data,
  pivot_cols = NULL,
  indicator_cols = NULL,
  max_n_pivot_cols = 100,
  additional_expr_num = list(),
  additional_expr_char = list(),
  additional_combine = list(),
  theme = NULL,
  export_styles = TRUE,
  show_title = TRUE,
  initialization = NULL
)

shinypivottablerUI(id, app_colors = c("#59bb28", "#217346"), app_linewidth = 8)

Arguments

input

shiny input

output

shiny input

session

shiny input

data

data.frame / data.table. Initial data table.

pivot_cols

character (NULL). Columns to be used as pivot in rows and cols.

indicator_cols

character (NULL). Columns on which indicators will be calculated.

max_n_pivot_cols

numeric (100). Maximum unique values for a pivot_cols if pivot_cols = NULL

additional_expr_num

named list (list()). Additional computations to be allowed for quantitative vars.

additional_expr_char

named list (list()). Additional computations to be allowed for qualitative vars.

additional_combine

named list (list()). Additional combinations to be allowed.

theme

list (NULL). Theme to customize the output of the pivot table. Use HEX color rather than rgb for export style

export_styles

boolean (TRUE). Whether or not to apply styles (like the theme) when exporting to Excel.

show_title

boolean (TRUE). Whether or not to display the app title. Some styles may not be supported by Excel.

initialization

named list (NULL). Initialization parameters to display a table when launching the module. Available fields are :

• rows: Selected pivot rows.

• cols: Selected pivot columns.

• target, combine target: Selected target and combine_target columns..

• idc, combine_idc: Selected idc and combine_idc columns.

• combine: Selected combine operator.

• format_digit, format_prefix, format_suffix, format_sep_thousands, format_decimal: Selected formats for the table idc.

• idcs: idcs to be displayed (list of named list), see the example to get the fields.

id

character. An ID string

app_colors

character. Vector of two colors c("#59bb28", "#217346") (borders)

app_linewidth

numeric. Borders width

Value

Nothing. Just Start a Shiny module.

Examples

if (interactive()) {
require(shinypivottabler)
require(shiny)

# demo app
runApp(system.file("demo_app", package = "shinypivottabler"))

# create artificial dataset
n <- 1000000
data <- data.frame("gr1" = sample(c("A", "B", "C", "D"), size = n,
                                 prob = rep(1, 4), replace = T),
                   "gr2" = sample(c("E", "F", "G", "H"), size = n,
                                 prob = rep(1, 4), replace = T),
                   "gr3" = sample(c("I", "J", "K", "L"), size = n,
                                 prob = rep(1, 4), replace = T),
                   "gr4" = sample(c("M", "N", "O", "P"), size = n,
                                 prob = rep(1, 4), replace = T),
                   "value1" = 1:n,
                   "value2" = n:1)

# Minimal example

ui = shiny::fluidPage(
  shinypivottablerUI(id = "id")
)

server = function(input, output, session) {
  shiny::callModule(module = shinypivottabler,
                    id = "id",
                    data = data)
}

shiny::shinyApp(ui = ui, server = server)



# Complete example

initialization <- list(
  "rows" = "gr1",
  "cols" = "gr2",
  "target" = "gr3",
  "combine_target" = "gr4",
  "idc" = "Count",
  "combine_idc" = "Count",
  "combine" = "/",
  "idcs" = c(
      list(
        c("label" = "Init_variable_1",
          "target" = "gr3", "idc" = "Count",
          "nb_decimals" = 0,
          "sep_thousands" = " ",
          "sep_decimal" = ".",
          "prefix" = "",
          "suffix" = "",
          "combine" = "/",
          "combine_target" = "gr4",
          "combine_idc" = "Count")
       ),
       list(
         c("label" = "Init_variable_2",
           "target" = "gr3", "idc" = "Count")
       )
     )
)

theme <- list(
  fontName="Courier New, Courier",
  fontSize="1em",
  headerBackgroundColor = "red",
  headerColor = "#FFFFFF",
  cellBackgroundColor = "#FFFFFF",
  cellColor = "#000000",
  outlineCellBackgroundColor = "#C0C0C0",
  outlineCellColor = "#000000",
  totalBackgroundColor = "#59bb28",
  totalColor = "#000000",
  borderColor = "#404040"
)

ui = shiny::fluidPage(
  shinypivottablerUI(id = "id")
)

# we add two functions, one for quantitative variables (Q5) and
# one for qualitatives variables (the mode, with a custom function), and
# one possible combination (the modulo).
my_mode <- function(x) names(which.max(table(x)))

server = function(input, output, session) {
  shiny::callModule(module = shinypivottabler,
                    id = "id",
                    data = data,
                    pivot_cols = c("gr1", "gr2", "gr3", "gr4"),
                    additional_expr_num = list(
                      "Add_Q5" = "paste0('quantile(', target, ', probs = 0.05, na.rm = TRUE)')"
                    ),
                    additional_expr_char = list(
                      "Add_mode" = "paste0('my_mode(', target, ')')"
                    ),
                    additional_combine = c("Add_modulo" = "%%"),
                    theme = theme,
                    initialization = initialization)
}

shiny::shinyApp(ui = ui, server = server)

}