Add Behavior Data to PLS Specification

Adds behavioral measures for behavior PLS or multiblock PLS. The behavior data should have one row per observation (subject x condition).

Usage

add_behavior(spec, data, measures = NULL, block_conditions = NULL)

Arguments

spec

A pls_spec object

data

Behavior data as:

• A matrix (observations x measures)

• A data frame with measure columns

measures

Optional character vector of measure names

block_conditions

For multiblock PLS: which conditions to use in the behavior block (default all)

Value

Updated pls_spec object

Examples

# Create brain data: 30 subjects x 3 conditions = 90 rows, 50 features
set.seed(42)
brain_data <- matrix(rnorm(90 * 50), 90, 50)

# Behavior data: 90 rows, 4 measures
behav_data <- matrix(rnorm(90 * 4), 90, 4)
colnames(behav_data) <- c("accuracy", "rt", "confidence", "effort")

spec <- pls_spec() |>
  add_subjects(list(brain_data), groups = 30) |>
  add_conditions(3) |>
  add_behavior(behav_data)