[FIX] Propagate TR to ref_image header

[dowdlelt]

Closes #206 .

Changes proposed in this pull request:

• in load_data, the ref image now has a 4th dimension, TR in output is now correct

[dowdlelt]

Travis is unhappy with that extra '1', unsurprisingly. Though I will admit this is the first time I have ever encountered continuous integration.

 assert ref.shape == (39, 50, 11)
E       assert (39, 50, 11, 1) == (39, 50, 11)
E         Left contains more items, first extra item: 1
E         Use -v to get the full diff

[tsalo]

This looks good. Thank you!

It looks like you'll just need to update the test. You just need to change assert ref.shape == (39, 50, 11) to assert ref.shape == (39, 50, 11, 1) in the test function.

Could you also check to see if the 3D images being written out are still 3D? I just want to make sure that they aren't written out with a singleton fourth dimension.

Lastly, could you add the [FIX] prefix to this PR title and remove the [bug] one from the corresponding issue?

[dowdlelt]

3dinfo reports that dn_ts_OC.nii has a time dimension, with the correct tr, whereas s0v.nii has no time dimension. Opens fine in AFNI as well. Let me know if you want another check of that.

[tsalo]

If it has no time dimension then I think that should be fine. Thank you for checking!

[codecov]

Codecov Report

Merging #207 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #207   +/-   ##
=======================================
  Coverage   51.42%   51.42%           
=======================================
  Files          32       32           
  Lines        1964     1964           
=======================================
  Hits         1010     1010           
  Misses        954      954

Impacted Files	Coverage Δ
tedana/io.py	35.55% <100%> (ø)	⬆️
tedana/tests/test_io.py	100% <100%> (ø)	⬆️

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[rmarkello]

Looks great! Thanks for catching this, @dowdlelt.

[emdupre]

I'll go ahead and merge, then ! Thanks @dowdlelt ✨