Check Membership in List of Tibbles

This function filters a list of tibbles based on whether a key variable's value is among the membership values. It first uses check_key_vars() to ensure the key variable exists, then checks membership. Useful for keeping only specific students or participants.

Usage

check_membership(tibble_list, key_var, membership, verbose = FALSE)

Arguments

tibble_list

A named list of tibbles, each containing an "id" column and an "answer" column

key_var

A character string specifying the key variable to check

membership

A character vector of allowed values for the key variable

verbose

Logical indicating whether to report removed items (default: FALSE)

Value

A list of tibbles where the key variable exists and its value is in the membership list

Examples

# Create sample data with student emails
path <- system.file("extdata", "answers_html", package = "tutorial.helpers")

tibble_list <- gather_submissions(path, "stop")

result <- check_membership(tibble_list,
                           key_var = "email",
                           membership = c("bluebird.jack.xu@gmail.com",
                                          "hassan.alisoni007@gmail.com"))