Get subjects list from subjects.txt file in dir.

Get subjects list from subjects.txt file in dir.

Usage

sjld(subjects_dir)

Arguments

subjects_dir

character string, existing subjects dir with a subjects.txt file containing one subject per line and no header line.

Value

named list with entries: 'd', the query subjects_dir (repeated from the parameter), 'l', vector of character strings, the subjects_list read from the file, 'f', the subjects_file.

Note

This function stops if the file does not exist or cannot be read.