module_init_data: Data Module for teal

In teal: Exploratory Web Apps for Analyzing Clinical Trials Data

Data Module for teal

Description

This module manages the data argument for srv_teal. The teal framework uses teal.data::teal_data(), which can be provided in various ways:

1. Directly as a teal.data::teal_data() object. This will automatically convert it into a reactive teal_data.

2. As a reactive object that returns a teal.data::teal_data() object.

Usage

ui_init_data(id)

srv_init_data(id, data)

Arguments

id	(character(1)) shiny module instance id.
data	(teal_data, teal_data_module, or reactive returning teal_data) The data which application will depend on.

Details

Reactive teal_data:

The data in the application can be reactively updated, prompting srv_teal() to rebuild the content accordingly. There are two methods for creating interactive teal_data:

1. Using a reactive object provided from outside the teal application. In this scenario, reactivity is controlled by an external module, and srv_teal responds to changes.

2. Using teal_data_module(), which is embedded within the teal application, allowing data to be resubmitted by the user as needed.

Since the server of teal_data_module() must return a reactive teal_data object, both methods (1 and 2) produce the same reactive behavior within a teal application. The distinction lies in data control: the first method involves external control, while the second method involves control from a custom module within the app.

For more details, see module_teal_data.

Value

A reactive object that returns: Output of the data. If data fails then returned error is handled (after tryCatch()) so that rest of the application can respond to this respectively.

teal documentation built on Aug. 21, 2025, 5:58 p.m.