added an 'unfuse' method

[er9]

added an 'unfuse' method that changes the shape of specified inds. Positions of new inds group are in the position of the old ind. Ordering and shape of within new inds group is specified in the input parameters 'unfuse_map' and 'shape_map'.

[pep8speaks]

Hello @er9! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file tests/test_tensor/test_tensor_core.py:

Line 231:34: E231 missing whitespace after ',' Line 231:61: E231 missing whitespace after ':' Line 231:64: E231 missing whitespace after ',' Line 231:74: E231 missing whitespace after ':' Line 231:77: E231 missing whitespace after ',' Line 231:80: E501 line too long (81 > 79 characters) Line 232:34: E231 missing whitespace after ',' Line 232:36: E231 missing whitespace after ',' Line 232:38: E231 missing whitespace after ',' Line 233:35: E231 missing whitespace after ',' Line 233:39: E231 missing whitespace after ',' Line 233:43: E231 missing whitespace after ',' Line 235:28: E201 whitespace after '(' Line 235:45: E231 missing whitespace after ',' Line 235:49: E203 whitespace before ',' Line 235:58: E202 whitespace before ')' Line 238:43: E231 missing whitespace after ':' Line 238:46: E231 missing whitespace after ',' Line 240:35: E231 missing whitespace after ',' Line 240:39: E231 missing whitespace after ',' Line 242:40: E231 missing whitespace after ',' Line 245:43: E231 missing whitespace after ':' Line 245:46: E231 missing whitespace after ','

Comment last updated at 2020-08-17 23:22:24 UTC

[codecov[bot]]

Codecov Report

Merging #63 into develop will decrease coverage by 1.07%. The diff coverage is 96.00%.

@@             Coverage Diff             @@
##           develop      #63      +/-   ##
===========================================
- Coverage    87.39%   86.31%   -1.08%     
===========================================
  Files           32       32              
  Lines         8686     8711      +25     
===========================================
- Hits          7591     7519      -72     
- Misses        1095     1192      +97     

Impacted Files	Coverage Δ
quimb/tensor/tensor_core.py	91.15% <96.00%> (+0.07%)	:arrow_up:
quimb/tensor/optimize_autograd.py	37.17% <0.00%> (-50.27%)	:arrow_down:

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[jcmgray]

Nice, thanks for the contribution!