read.analyze.data: Read ANALYZE 7.5 data from file.

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

Read ANALYZE 7.5 data from file.

Description

Read ANALYZE 7.5 data from file.

Usage

read.analyze.data(filepath, header = NULL, drop_empty_dims = TRUE)

Arguments

filepath	character string, the path to the .hdr file. The base name without the extension is accepted as well, see analyze.pair.files.
header	optional ANALYZE 7.5 header as returned by read.analyze.header. It will be read from the file automatically if left at NULL.
drop_empty_dims	logical, whether to drop empty dimensions in the returned data array, see drop.

Value

the data in the .img file of the pair, as an array (or a vector for 1D data). Note that the fields of the header are not applied in any way: the data are returned exactly as they are stored in the file, in the storage order of the format (the first dimension varies fastest, which is also the order used by R and by the MGH/MGZ format), and the funused1 field that SPM uses as a scale factor is not applied (see read.fs.volume.analyze if you want that).

See Also

read.analyze.header

Examples

hdrfile <- system.file("extdata", "analyze", "tiny_u8.hdr",
  package = "freesurferformats", mustWork = TRUE
)
data <- read.analyze.data(hdrfile)
dim(data)

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