Read a Brief-RC noise matrix text file

Reads a space-delimited text file where each column is one stimulus and each row is one pixel. For 128x128 images this produces a 16384-row matrix; for 256x256 it produces a 65536-row matrix. Uses data.table::fread() for speed.

Usage

read_noise_matrix(path, header = FALSE)

Arguments

path

Path to a space-delimited text file of floats.

header

Logical. Does the file have a header row? Defaults to FALSE, matching the Schmitz et al. (2024) convention.

Value

A numeric matrix with n_pixels rows and n_stimuli columns.

Examples

if (FALSE) { # \dontrun{
mat <- read_noise_matrix("noise_matrix_128.txt")
dim(mat)
} # }