Thanks Mike,
I will try oro.nifiti. I did download and install it yesterday. It seems
more suited to fMRI than diffusion-weighted (DWI) data. I have finished an
FSL TBSS analysis and will try to load the 4D files with oro.nifti... there
is also an R dti package but I find it looks quite involved...
On Fri, Jan 31, 2014 at 11:20 AM, Michael Dwyer <[log in to unmask]> wrote:
> Hi Charlie,
>
> I don't have a lot of experience, but I have used the very nice oro.nifti
> package to do it. One you install that, you can load images as follows:
>
> > require(oro.nifti)
> > imgdata <- readNIfTI('timeseries.nii.gz')
>
> Then, although it has other features it will still act like an array. For
> example, to get the histogram of the whole 3d volume of the first timepoint:
>
> > hist(imgdata[,,,1])
>
> Or for a histogram of the first slice across all timepoints:
>
> > hist(imgdata[1,,,])
>
> Best,
> Mike
>
>
>
>
>
> On Fri, Jan 31, 2014 at 10:33 AM, charlie Leger <[log in to unmask]>wrote:
>
>> Has anyone had experience with loading 4D FSL-processed files into R?
>>
>
>
>
> --
> Michael G. Dwyer, Ph.D.
> Assistant Professor of Neurology
> Director of Technical Imaging Development
> Buffalo Neuroimaging Analysis Center
> University at Buffalo
> 100 High St. Buffalo NY 14203
> [log in to unmask]
> (716) 859-7065
>
