ols inv when zero regressors #74
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I think this is it. I think this might also fix #47 |
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tests pass. |
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ok had a quick look and it seems it doesn't fix #47. i'll look into that one now. |
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ok this branch is ready for merge is your review is positive. |
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If a condition is say only repeated every other run, we end up with design matrices with all zeros on the column for that condition on the run it wasn't presented.
This will trigger an error in 2 of our core functions fit_runs and make_project_matrix.
This PR intends to fix this.