[FIX] Addresses bug when tolerance=0
#175
Merged
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Fixes an error raised when
tolerance=0
where no samples were matched to the provided volumetric atlas. (This was due to changes in #169 that led to using MNI coordinates even for volumetric atlases, such that NO samples are exactly within the volumetric grid. We take the floor of the MNI coordinates now to avoid this error.)Also,
abagen.get_expression_data()
now issues a warning (and avoids errors) if any donors have no samples matched to an atlas.