write.ANALYZE: I/O Functions

Description

Write a 4 dimensional datacube in ANALYZE file format.

Usage

write.ANALYZE(ttt, header=NULL, file)

Arguments

ttt

4 dimensional datacube

header

header information

file

file name

Value

Nothing is returned.

Details

Writes the datacube ttt to a file named file in ANLYZE file format. header is a list that contains the header information as documented by the Mayo Foundation. We give here a short summary. If a value is not provided, it will be tried to fill it with reasonable defaults, but do not expect fine results, if the entry has a special important meaning (h.i. pixdim). rlrl{ [1] datatype1 -- 10 byte character [2] dbname -- 18 byte character [3] extents -- integer [4] sessionerror -- integer [5] regular -- character [6] hkey -- character [7] dimension -- 8 integers, dimensions ... [8] unused -- 7 integers [9] datatype -- integer, datatype usually "4" [10] bitpix -- integer [11] dimun0 -- integer [12] pixdim -- 8 floats, voxel dimensions ... [13] voxoffset -- float [14] funused -- 3 floats [15] calmax -- float [16] calmin -- float [17] compressed -- float [18] verified -- float [19] glmax -- integer [20] glmin -- integer [21] describ -- 80 byte character [22] auxfile -- 24 byte character [23] orient -- character [24] originator -- 5 integers [25] generated -- 10 byte character [26] scannum -- 10 byte character [27] patientid -- 10 byte character [28] expdate -- 10 byte character [29] exptime -- 10 byte character [30] histun0 -- 3 byte character [31] views -- integer [32] voladded -- integer [33] startfield -- integer [34] fieldskip -- integer [35] omax -- integer [36] omin -- integer [37] smax -- integer [38] smin -- integer } See ANALYZE documentation for details.

Examples

Run this code

## Example 1
write.ANALYZE(array(as.integer(65526*runif(10*10*10*20)),c(10,10,10,20)),
              file="analyzefile")