get_node_1_index_r: Get Index Mapping for the Node 1 Accumulator

In ggdmcModel: Model Builders for 'ggdmc' Package

Get Index Mapping for the Node 1 Accumulator

Description

Generates an integer matrix mapping experimental design cells to their corresponding indexes of the node 1 accumulator. The node 1 accumulator is the theoretical accumulator that reaches the threshold first. This function is primarily used for the LBA model.

Usage

get_node_1_index_r(parameter_map_r, factors_r, accumulators_r)

Arguments

parameter_map_r	An Rcpp::List where each element is a character vector mapping parameters to conditions. Names should correspond to parameters.
factors_r	An Rcpp::List where each element is a character vector of factor levels. Names should correspond to factor names.
accumulators_r	A character vector of response accumulator names.

Details

The function:

1. Computes node indices for each condition-response pair

2. Returns results as an R-compatible integer matrix

Value

An integer matrix with dimensions:

• Rows: Experimental conditions (cells)

• Columns: Accumulators (responses)

Where values represent parameter indices for each condition-response combination.

Examples

cat("Flexible stimulus name")
p_map <- list(A = "1", B = "S", t0 = "E", mean_v = c("D", "M"),
               sd_v = "M", st0 = "1")
factors <- list(S = c("sti_1", "sti_2", "sti_3", "sti_4"),
                D = c("d1", "d2"), E = c("e1", "e2"))
responses <- c("resp_1", "resp_2", "resp_3", "resp_4")

# Get node indices
result <- get_node_1_index_r(p_map, factors, responses)
print(dim(result)[[1]])
# 64

ggdmcModel documentation built on Aug. 8, 2025, 7:50 p.m.