Hi,

Since "melodic_IC.dscalar.nii" for d=25 seemed to be the only file that I
could not open, I just unzipped all my group ICA maps and now the new
"melodic_IC.dscalar.nii" can be opened.

I am confused as the freshly unzipped "melodic_IC.dscalar.nii" is much
smaller than the one I have been working on. I indeed have been viewing
this file in wb_view and may have applied thresholds and clicked on
coordinates for display purposes. But I don't think I could have done any
significant change to a cifti file in wb_view, to the point that it can no
longer be read by ciftiopen.


Best,
Cherry

On Sun, Mar 8, 2015 at 12:18 AM, Glasser, Matthew <[email protected]>
wrote:

>  I’m puzzled by that as well, unless you don’t have write permission to
> the location which can mess things up.
>
>  Peace,
>
>  Matt.
>
>   From: Yizhou Ma <[email protected]>
> Date: Sunday, March 8, 2015 at 12:07 AM
> To: "[email protected]" <[email protected]>
> Subject: [HCP-Users] Fwd: Difficulties reading cifti into matlab with
> ft_read_cifti or ciftiopen
>
>
> ---------- Forwarded message ----------
> From: Yizhou Ma <[email protected]>
> Date: Sun, Mar 8, 2015 at 12:07 AM
> Subject: Re: [HCP-Users] Difficulties reading cifti into matlab with
> ft_read_cifti or ciftiopen
> To: "Glasser, Matthew" <[email protected]>
>
>
>   Hi Dr. Glasser,
>
>  I moved everything I need to open under the /bin just to make sure that I
> did not mess up with the path.
>
>  An update: I am now able to use most .dscalar and .dtseries files for
> participants with ciftiopen. Yet I don't know what I did to get it right. I
> also succeeded in open "melodic_IC.dscalar.nii" for ICA d=50, yet I got the
> same error for "melodic_IC.dscalar.nii" for ICA d=25. This inconsistency
> confuses me.
>
>
>  Best,
>  Cherry
>
> On Sun, Mar 8, 2015 at 12:01 AM, Glasser, Matthew <[email protected]
> > wrote:
>
>>  Are you not including the directory path to the file?
>>
>>  Peace,
>>
>>  Matt.
>>
>>   From: Yizhou Ma <[email protected]>
>> Date: Saturday, March 7, 2015 at 10:47 PM
>> To: "[email protected]" <[email protected]>
>> Subject: [HCP-Users] Difficulties reading cifti into matlab with
>> ft_read_cifti or ciftiopen
>>
>>        Dear HCP experts,
>>
>>  I am experiencing difficulties reading cifti into matlab.
>>
>> For the ICA maps (melodic_IC.dscalar.nii). I used:
>>
>> cifti=ft_read_cifti('melodic_IC.dscalar.nii')
>>
>>  The error I got was:
>> Error using read_nifti2_hdr (line 56)
>> cannot open melodic_IC.dscalar.nii as nifti file, hdr size = 1684628319,
>> should be 348 or 540
>>
>>  I also tried:
>> cifti=ciftiopen('melodic_IC.dscalar.nii','wb_command')
>>
>>  and I got
>> ERROR: error reading NIfTI file
>> /workbench/bin_rh_linux64/melodic_IC.dscalar.nii:
>> /workbench/bin_rh_linux64/melodic_IC.dscalar.nii is not a valid NIfTI file
>> wb_command -cifti-convert -to-gifti-ext melodic_IC.dscalar.nii
>> /tmp/tpe16b84a6_70fd_4d0b_80c7_1daf1d5c79b7.gii: Signal 127
>> Error using read_gifti_file (line 17)
>> [GIFTI] Loading of XML file
>> /tmp/tpe16b84a6_70fd_4d0b_80c7_1daf1d5c79b7.gii failed.
>>
>> Error in gifti (line 71)
>>                 this = read_gifti_file(varargin{1},giftistruct);
>>
>> Error in ciftiopen (line 31)
>> cifti = gifti([tmpfile '.gii']);
>>
>>  Errors when opening other cifti files are different, for example
>>
>>
>> cifti=ciftiopen('rfMRI_REST1_LR_Atlas_hp2000_clean.dtseries.nii','wb_command')
>> Undefined function 'file_array' for input arguments of type 'char'.
>>
>> I run all commands in workbench's bin. My workbench is v1.0. My gifti
>> library was just downloaded so no reason to believe that it is not
>> up-to-date.
>>
>>  Any help is appreciated.
>>
>>  Best,
>>  Cherry
>>
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