sha,message,author_date,committer_date,raw_author,raw_committer,repo,author,committer 5c6aebccf4eeedbe9de186836a0913f00ea157db,"Add head, tail and thin methods (#3278) * Add head, tail and thin methods * Update api and whats-new * Fix pep8 issues * Fix typo * Tests for DataArray",2019-09-05T04:22:23Z,2019-09-05T04:22:23Z,07354799b3d1efde7621fcd783157c7e32436919,279c587273ec459ffb5192e60bf8447c05601fa5,13221727,23618263,5635139 3c020e58d3bf40101b0f4968f155e4eaa9d70e62,"Initialize empty or full DataArray (#3159) * TST: add test for DataArray init with a single value * ENH: add empty and full DataArray initialization * Update whats-new * Remove ValueError test * Add function to verify and fill array according to coordinates * Use item in numpy array to compare with None * ENH: add empty and full DataArray initialization * Add function to verify and fill array according to coordinates * Handle coords being a list of tuples * Use .shape to identify scalar arrays * Better handling of dims * Remove conditionals over shape value * Ignore 0d arrays * Fill array with NaN when no data given * Add more tests * black * black2 * Type check for ExplicitlyIndexed objects * Change parameter name * Remove Optional * Remove abbreviation * Use as_variable * Pass tuples explicitly to coords in test * Tests for 0d * Move ExplicitlyIndexed check into is_scalar * Update utils.py",2019-08-26T20:36:35Z,2019-08-26T20:36:35Z,07354799b3d1efde7621fcd783157c7e32436919,279c587273ec459ffb5192e60bf8447c05601fa5,13221727,23618263,5635139