dot-read.numeric.table: Read a whitespace-separated numeric table from a text file.

In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats

Read a whitespace-separated numeric table from a text file.

Description

Low-level parser shared by all gradient table readers. Values may be separated by spaces, tabs or commas, and both blank lines and lines starting with ⁠#⁠ are ignored. All remaining lines must contain the same number of values.

Usage

.read.numeric.table(filepath, allow_count_header = FALSE)

Arguments

filepath	character string, path to the file. Gzip-compressed files are detected by their magic bytes, not by the file name.
allow_count_header	logical, whether a first line that consists of a single integer may be interpreted as a count header and dropped. Only the MRtrix gradient table reader enables this, because the historical .grad/.b files may start with the number of volumes.

Value

a numeric matrix, one row per input line.

freesurferformats documentation built on Sept. 25, 2026, 1:07 a.m.