[MRG] Changed code example for FAQ#7820
Closed
sillystring13 wants to merge 1 commit intoscikit-learn:masterfrom
Closed
[MRG] Changed code example for FAQ#7820sillystring13 wants to merge 1 commit intoscikit-learn:masterfrom
sillystring13 wants to merge 1 commit intoscikit-learn:masterfrom
Conversation
The code example needs the parameter 'algorithm=brute' for the the custom distance metric with data indexing to work correctly. Otherwise, for larger datasets the default 'algorithm=auto' will choose an incompatible algorithm which breaks the custom data indexing. notebook with code demonstrating the issue: https://github.com/sillystring13/cuddly-barnacle/blob/master/Example%20-%20Sklearn%20FAQ%20code%20test.ipynb
Member
|
Please add an explanation that without 'brute', the algorithm may assume that the distance is a function of a real-valued (continuous) feature space. |
jnothman
requested changes
Nov 4, 2016
| [1], | ||
| [2]]) | ||
| >>> dbscan(X, metric=lev_metric, eps=5, min_samples=2) # doctest: +SKIP | ||
| >>> dbscan(X, metric=lev_metric, eps=5, min_samples=2, algorithm='brute') # doctest: +SKIP |
Member
There was a problem hiding this comment.
Please split into two lines. Max length 79
jnothman
pushed a commit
that referenced
this pull request
Aug 22, 2018
Member
|
fixed in #11884 |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Reference Issue
Related to: #7669
What does this implement/fix? Explain your changes.
Problem:
The doc/faq example "How do I deal with string data (or trees, graphs...)?" has a chunk of code that doesn't work if you increase the number of samples.
Fix:
The code example needs the parameter 'algorithm=brute' for the the custom distance metric with data indexing to work correctly. Otherwise, for larger datasets the default 'algorithm=auto' will choose an incompatible algorithm which breaks the custom data indexing.
Any other comments?
Here's a notebook with code demonstrating the issue:
https://github.com/sillystring13/cuddly-barnacle/blob/master/Example%20-%20Sklearn%20FAQ%20code%20test.ipynb