multiverse {multiverse}

Create a new multiverse object

Description

Constructs a new multiverse object which enables conducting a multiverse analysis

Usage

multiverse()

is_multiverse(x)

is.multiverse(x)

Arguments

x

An object

Details

To perform a multiverse analysis, the user needs to first constructs a new multiverse object. The user can declare multiple analysis pathways within this multiverse object, and execute these analyses. The multiverse object contains the following slots:

• code: This slot stores the user's code for conducting a multiverse analysis. The user can define multiple analysis pathways at each step in the analysis using the 'branch' call. It supports tidyverse syntax.

• parameters: This slot contains a named list of lists. It contains each parameter defined in the code using the 'branch()' function, and the options defined for each parameter (as a list).

• conditions: This slot contain a list of conditions: if any of the parameter values are conditional on a specific value of another parameter, these can be defined in the code using 'branch_assert()' or 'branch_exclude()'.

• current_parameter_assignment: This slot is a list which contains a single option assigned for each parameter defined in the 'code'.

• multiverse_table: This slot contains a table (in implementation, a tibble which is a rectangular data structure) where each column of the table will be a unique parameter. The table will contains every possible combination of options for each parameter — the number of rows corresponds to the number of different analysis paths. The table also contains, for each row, a list of option assignments for each parameter ('parameter_assignment' column), code for executing that particular analysis (of type 'expression'), and environments where each code will be executed.

Value

An empty multiverse object

'TRUE' if the object inherits from the 'multiverse' class.

'TRUE' if the object inherits from the 'multiverse' class.

Examples

M <- multiverse()