biocore/scikit-bio — pull request #755 by jairideout (2014-11-04 17:43:21+00:00)
Title: Add OrdinationResults.__str__

Also update `DissimilarityMatrix`/`DistanceMatirx.__str__` to list `repr`-ed IDs for improved readability (see [here](http://stackoverflow.com/a/2626364/3776794) for rationale).

Part of #753.

Example of `OrdinationResults.__str__`:

```
>>> print(str(ord_res))
Ordination results:
Eigvals: 2
Proportion explained: N/A
Species: 3x2
Site: 3x2
Biplot: N/A
Site constraints: N/A
Species IDs: 'Species1', 'Species2', 'Species3'
Site IDs: 'Site1', 'Site2', 'Site3'
```