Afqinsight

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* Fix attribute errors in bagging and cross-validation. Loosen dependency reqs (108)
* Make AFQDataset work with different input formats and make indexable (105)

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* ENH: Expose figsize and tight_layout kwargs to plot_tract_profiles (104)
* Expose legend kwargs to user in plot_tract_profiles (102)

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* BF: Fix label encoding in the presence of NaN labels (101)
* Add enforce_sub_prefix option to AFQDataset and load_afq_data (96)
* RF: For plotting, sometimes you don't want to group by any other variable (99)
* BF: Cast integer session identifiers to strings. (91)
* Add an AFQDataset class (89)
* Add callosal bundles to plot_tract_profiles (82)
* ENH: Add Convolutional Neural Network Models (83)
* TST: Improve coverage. (86)
* Fixes tests broken by previous commits. (85)
* DOC + RF: Adds docstrings to class definitions. (84)
* ENH: Allow bundle aggregation and put load_afq_data output into a named_tuple (80)
* ENH: Allow bundle aggregation and put load_afq_data output into a named_tuple (80)
* DOC: Make examples a bit more explicit (79)

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* Add research examples to documentation (77)
* ENH: Add dataset fetchers (76)
* Adds error handling for cases where users forget to set target_cols. (73)
* ENH: Add unsupervised boolean parameter to load_afq_data (71)
* ENH: Add bundle profile plotting function (69)
* Remove transformers that were migrated to groupyr (68)
* DEP: Loosen groupyr dependency (67)
* DEP: Loosen dependency requirements (66)
* Fixes broken links (65)
* ENH: Stratify bootstrap replicants in SerialBaggingClassifier (61)
* ENH: Add SerialBagging classes (60)

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* DEP: Bump groupyr version

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* ENH: Add ensemble estimators to pipelines (59)