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The R package DT provides an R interface to the JavaScript library DataTables. R data objects (matrices or data frames) can be displayed as tables on HTML pages, and DataTables provides filtering, pagination, sorting, and many other features in the tables.

You may install the stable version from CRAN, or the development version using remotes::install_github('rstudio/DT') if necessary (this website reflects the development version of DT):

Data Table Options Summons the Format Data Table dialog box that provides you with options to customize the appearance of your Data Table - this is explained in our Data Table Options for Charts in PowerPoint 2011 for Mac tutorial. Save your presentation often! See Also: Chart Data Table in PowerPoint 2013 for Windows. I'm using the DT library in R shiny, which is an interface to JS DataTables. My app works in Chrome, but in Safari I can't edit the cells. I tried with Safari (11.1 (12605.1.33.1.3)) on the Mac and it seems to be working: I double clicked and updated one of the cells and the Total and Score were updated. Are these the correct steps to.

Please use Github issues to file bug reports or feature requests, and use StackOverflow to ask questions.

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The main function in this package is datatable(). It creates an HTML widget to display R data objects with DataTables.

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Here is a “hello world” example with zero configuration:

If you are familiar with DataTables already, you may use the options argument to customize the table. See the page Options for details. Here we explain the rest of the arguments of the datatable() function.

2.1 Table CSS Classes

The class argument specifies the CSS classes of the table. The possible values can be found on the page of default styling options. The default value display basically enables row striping, row highlighting on mouse over, row borders, and highlighting ordered columns. You can choose a different combination of CSS classes, such as cell-border and stripe:

2.2 Styling

Currently, DT only supports the Bootstrap style besides the default style. You can use the argument style = 'bootstrap' to enable the Bootstrap style, and adjust the table classes accordingly using Bootstrap table class names, such as table-stripe and table-hover. Actually, DT will automatically adjust the class names even if you provided the DataTables class names such as stripe and hover.

Note you can only use one style for all tables on one page. Please see this separate page for examples using the Bootstrap style.

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2.3 Table Editing

You can enable table editing using the argument editable (see ?DT::datatable for its possible values). Then you will be able to double-click a cell to edit its value. It works in both client-side and server-side processing modes. Below are two client-side examples (also see a Shiny example with server-side processing):

2.4 Display Row Names

If the data object has row names, they will be displayed as the first column of the table by default. You can suppress row names via the argument rownames = FALSE, and you can also change row names by providing a different character vector to rownames.

Row names are essentialy a new column added to the original data (via cbind(rownames(data), data)). This has an important consequence in terms of the column indices. JavaScript indexes from 0 instead of 1, so the index of the n-th element is actually n - 1.¹ When thinking of the column indices (which you will often have to do if you customize options), use

• n - 1 as the index of the n-th column in the original data if you do not display row names;
• n as the index of the n-th column in the original data if you want to display row names, because the original index is n - 1 in JavaScript but we added the row names as the first column, and (n - 1) + 1 = n;

It is very important to remember this when using DataTables options.

2.5 Custom Column Names

By default, datatable() shows the column names of the data in the table, and you can use a custom character vector for the table header. There are a few possibilities. The first one is, you provide a new character vector to completely replace the column names of the data, e.g.

This can be cumbersome if you only want to replace one or two names, and you do not want to provide a whole vector of names. Then here is the second possibility: you can provide a shorter numeric or character vector as the index vector to replace a subset of the column names. For example, if you only want the 2nd name to be 'A Nicer Name', you can use datatable(.., colnames = c('A Nicer Name' = 2)); or if you want to replace the name 'X5' with 'A Better Name', you can use colnames = c('A Better Name' = 'X5').

When you display row names of the data, its column name will be a white space by default. That is why you cannot see its column name. You can certainly choose to use a column name for rownames as well, e.g.

2.6 Custom Table Container

The container argument allows you to provide a different table container to hold the table cells. By default, the container is generated from the column names. Below is an example of a custom table header:

You can also add a footer to the table container, and here is an example:

2.7 Table Caption

You can add a table caption via the caption argument. It can be either a character vector, or a tag object created from htmltools::tags$caption(). See this blog post for more information on table captions.

2.8 Column Filters

DataTables does not provide column filters by default. There is only a global filter (the search box on the top-right). We added a filter argument in datatable() to automatically generate column filters. By default, the filters are not shown since filter = 'none'. You can enable these filters by filter = 'top' or 'bottom', depending on whether you want to put the filters on the top or bottom of the table.

Depending on the type of a column, the filter control can be different. Initially, you see search boxes for all columns. When you click the search boxes, you may see different controls:

• For numeric/date/time columns, range sliders are used to filter rows within ranges;
• For factor columns, selectize inputs are used to display all possible categories, and you can select multiple categories there (note you can also type in the box to search in all categories);
• For character columns, ordinary search boxes are used to match the values you typed in the boxes;

When you leave the initial search boxes, the controls will be hidden and the filtering values (if there are any) are stored in the boxes:

• For numeric/date/time columns, the values displayed in the boxes are of the form low .. high;
• For factor columns, the values are serialized as a JSON array of the form ['value1', 'value2', 'value3'];

When a column is filtered, there will be a clear button in its search box, and you can click the button to clear the filter. If you do not want to use the controls, you can actually type in the search boxes directly, e.g. you may type 2 .. 5 to filter a numeric column, and the range of its slider will automatically adjusted to [2, 5]. In case you find a search box too narrow and it is difficult to read the values in it, you may mouse over the box and its values will be displayed as a tooltip. See this example for how to hide the clear buttons, and use plain text input styles instead of Bootstrap.

Below is a simple example to demonstrate filters for character, date, and time columns:

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Filtering in the above examples was done on the client side (using JavaScript in your web browser). Column filters also work in the server-side processing mode, in which case filtering will be processed on the server, and there may be some subtle differences (e.g. JavaScript regular expressions are different with R). See here for an example of column filters working on the server side.

The position of column filters may be off when scrolling is enabled in the table, e.g. via the options scrollX and/or scrollY. The appearance may be affected by Shiny sliders, as reported in #49.

2.9 The callback argument

The argument callback takes the body of a JavaScript function that will be applied to the DataTables object after initialization. Below is an example to show the next page after the table is initialized²:

In the above example, the actual callback function on the JavaScript side is this (callback is only the body of the function):

After we initialize the table via the .DataTable() method in DataTables, the DataTables instance is passed to this callback function. Below are a few more examples:

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Please note this callback argument is only an argument of the datatable() function, and do not confuse it with the callbacks in the DataTablesoptions. The purpose of this argument is to allow users to manipulate the DataTables object after its creation.

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2.10 Escaping Table Content

The argument escape determines whether the HTML entities in the table are escaped or not. There can be potential security problems when the table is rendered in dynamic web applications such as Shiny if you do not escape them. Here is a quick example:

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Besides TRUE and FALSE, you can also specify which columns you want to escape, e.g.

Please be cautious when using row names with numeric column indices. Since the row names will become the first column in the display, you should increase the column indices by one, e.g.,

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1. By comparison, R indexes from 1.↩︎

2. See the documentation for the page() API.↩︎