write.AFNI: I/O functions
In fmri: Analysis of fMRI Experiments

write.AFNI

R Documentation

I/O functions

Description

Write BRIK/HEAD files.

Usage

write.AFNI(filename, ttt, label = NULL, note = NULL, origin = NULL, 
               delta = NULL, idcode = NULL, header = NULL, taxis = FALSE)

Arguments

`filename`	name of the file
`ttt`	datacube
`label`	labels (BRICK_LABS), depreciated - see header
`note`	notes on data (HISTORY_NOTE), depreciated - see header
`origin`	origin of datacube (ORIGIN), depreciated - see header
`delta`	voxel dimensions (DELTA), depreciated - see header
`idcode`	idcode of data (IDCODE_STRING), depreciated - see header
`header`	This is a list of header information such as DATASET_RANK to be written to the .HEAD file. Arguments `label`, ... are depreciated and to be substituted by a corresponding list entry. For backward compatibility the use of the old arguments is still supported and should give the same results. This will be removed in some future release! Since AFNI does not read any dataset with a header choose carefully what is written. There are some basic tests in this function, but this may not be sufficient.
`taxis`	logical (defaults to `FALSE`. Are the sub-bricks time series? This results in writing TAXIS attributes to the header file.

Details

Write out BRIK/HEAD files as required by AFNI. Most arguments correspond to entries in the HEAD file, but use is depreciated. Use header and taxis instead!

Value

Nothing is returned.

Author(s)

Karsten Tabelow tabelow@wias-berlin.de

References

Polzehl, J. and Tabelow, K. (2007) fmri: A Package for Analyzing fmri Data, R News, 7:13-17 .

Examples

 ## Not run: write.AFNI(tempfile(), array(as.integer(65526*runif(10*10*10*20)),
     c(10,10,10,20)), c("signal"), note="random data",
     origin=c(0,0,0), delta=c(4,4,5), idcode="unique ID")
## End(Not run)
 write.AFNI(tempfile(), array(as.integer(65526*runif(10*10*10*20)),
     c(10,10,10,20)), header=list(HISTORY_NOTE="random data",
     ORIGIN=c(0,0,0), DELTA=c(4,4,5), IDCODE_STRING="unique ID"),taxis=FALSE)

fmri documentation built on Sept. 8, 2023, 5:23 p.m.