This package provides an input field to enter matrix conveniently in a shiny application. It supports tabbing and jumping linewise in the matrix.
From CRAN:
From GitHub:
The input field is generated by the function matrixInput
matrixInput <- function(inputId,
value = matrix("", 1, 1),
inputClass = "",
rows = list(),
cols = list(),
class = "character"
pagination = FALSE,
lazy = 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 |
pagination |
Should the matrix be paginated (10 rows per page) |
lazy |
Lazy update data on server |
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 |
multiheader |
Display multiheader - currently only header spanning two columns are supported |
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
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
.
Use the matrix on the left to input values, matrix on the right displays the result.
updateMatrixInput
from R