| title |
|---|
Matrix Input for Shiny |
This package provides an input field to enter matrix conveniently in a shiny application. It supports tabbing and jumping linewise in the matrix, copy-pasting from other spread sheets applications.
From CRAN:
install.packages("shinyMatrix")From GitHub:
if (require("devtools")) install_github("INWTlab/shinyMatrix")The input field is generated by the function matrixInput
matrixInput <- function(inputId,
value = matrix("", 1, 1),
inputClass = "",
rows = list(),
cols = list(),
class = "character",
paste = FALSE,
copy = FALSE){
[...]
}You can define parameters as follows:
| Parameter | Description |
|---|---|
inputId |
id of html element |
value |
matrix |
inputClass |
class of html element (Class matrix-input is added automatically) |
rows |
list of parameters (see below) |
cols |
list of parameters (see below) |
class |
class of resulting matrix (numeric and character) is supported |
paste |
add pasting functionality |
copy |
add copy functionality |
Parameter rows / cols take a list of arguments. The following is supported
| Parameter | Description |
|---|---|
n |
number of rows (is calculated from value per default) |
names |
show row/colnames (names are taken from value) |
editableNames |
should row/colnames be editable? |
extend |
should rows/cols be automatically be added if table is filled to the last row / column? |
delta |
how many blank rows/cols should be added |
createHeader |
name of javascript function to override default function to create table header. The function needs to have the table element and the data object as argument |
updateHeader |
name of javascript function to override default function to update table header. The function needs to have the table element and the data object as argument |
getHeader |
name of javascript function to override default function to get names from the html table. The function needs to have the table element as argument |
Call the matrixInput function in your UI generating, e.g. ui.R
## numeric matrix
matrixInput("matrix1", class = "numeric")
## editable rownames
matrixInput("matrix2",
rows = list(
names = TRUE,
editableNames = TRUE),
data = matrix(letters[1:12], 3, 4)
)You can access the value from the matrix input using input$inputId in your server function. The result will always be a matrix of the class defined in matrixInput.
You can update the input field using updateMatrixInput
updateMatrixInput(session, inputId, value = NULL)value is the data object. In the future there should be also support to update the other parameters.
You find the code for the example app in inst/appXXX.
library(shinyMatrix)
## Basic Functionality
startApplication("app")
## Copy Pasting
startApplication("appCopy")
## Update Matrix Input from R
startApplication("appUpdate")
## Editable rownames
startApplication("appRownames")
## Extend Matrix Automatically
startApplication("appExtend")
## Custom Column Header
startApplication("appCustom")
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