The volume counter in FSLeyes starts at 0. Hence, if your last volume number is 33, probably that the data has 34 volumes.
> On Aug 24, 2017, at 4:27 PM, miao Wei <[log in to unmask]> wrote:
> To whom it may concern,
> I submitted a question regarding error message of dtifit yesterday but was not lucky enough to get a response.
> So I went ahead and checked for my bvec and bval files. Both of them has 33 entries.
> I used FSLeyes to look at my DTI data and dimension 4 listed as 33 as well. Does this means that I also have 33 volumes?
> If so why when I run DTIFIT it still give me the error message as 'Errors: data and bvals/bvecs do not contain the same number of entries'.
> I am so confused and could use any hint or help. Thank you!!