improve NaturalGradient optimizer documentation and add shape checks #1489
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@@ Coverage Diff @@
## develop #1489 +/- ##
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Coverage 95.24% 95.25%
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Files 82 82
Lines 3747 3750 +3
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+ Hits 3569 3572 +3
Misses 178 178
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As discussed in #878, GPflow's NaturalGradient optimizer does not implement the diagonal covariance parametrization (
q_diag=True). This PR clarifies this in the documentation and adds extra shape checks.