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scikit-learn

Creating custom transformer with sklearn – missing required positional argument error

August 22, 2022 by Magenaut

I’m trying to create a custom transformer that will split a column into multiple columns and I want to provide the delimiter also.

Categories Python, Q&A Tags python, scikit-learn Leave a comment

How to gridsearch RBFSampler

August 22, 2022 by Magenaut

I want to gridsearch RBFSampler in LightGBM. I don’t want to change any params of LightGBM, just the params of RBFSampler. I am having trouble figuring out where to run my features (X) through RBFSampler.

Categories Python, Q&A Tags hyperparameters, python, scikit-learn Leave a comment

Analyzer ignoring certain word when used in Sklearn Tfidf

August 22, 2022 by Magenaut

Here is my code:

Categories Python, Q&A Tags python, scikit-learn, tfidfvectorizer Leave a comment

Is possible to use sklearn.neighbors.KNeighborsClassifier into a tensorflow Session i.e with Tensor?

August 22, 2022 by Magenaut

I am trying to use the KNN classifier inside a Tensorflow session.

Categories Python, Q&A Tags python, scikit-learn, tensorflow Leave a comment

RandomForestRegressor leads to KeyError: ‘squared_error’

August 22, 2022 by Magenaut

I am trying to predict house prices in the Cali housing data set with a random forest. I do not understand why I get a KeyError: 'squared_error' in this simple code:

Categories Python, Q&A Tags python, random-forest, scikit-learn Leave a comment

Pass the estimator obtained after fitting to scoring function as a parameter

August 22, 2022 by Magenaut

Suppose I want to do a RandomizedSearchCV with custom both estimator and scorer :

Categories Python, Q&A Tags cross-validation, python, scikit-learn Leave a comment

How to extract the decision rules from scikit-learn decision-tree?

August 20, 2022 by Magenaut

Can I extract the underlying decision-rules (or ‘decision paths’) from a trained tree in a decision tree as a textual list?

Categories Python, Q&A Tags decision-tree, machine-learning, python, random-forest, scikit-learn Leave a comment

How to one-hot-encode from a pandas column containing a list?

August 20, 2022 by Magenaut

I would like to break down a pandas column consisting of a list of elements into as many columns as there are unique elements i.e. one-hot-encode them (with value 1 representing a given element existing in a row and 0 in the case of absence).

Categories Python, Q&A Tags numpy, pandas, python, scikit-learn, sklearn-pandas Leave a comment

sklearn error ValueError: Input contains NaN, infinity or a value too large for dtype(‘float64’)

August 19, 2022 by Magenaut

I am using sklearn and having a problem with the affinity propagation. I have built an input matrix and I keep getting the following error.

Categories Python, Q&A Tags python, python-2.7, scikit-learn, valueerror Leave a comment

Save classifier to disk in scikit-learn

August 18, 2022 by Magenaut

How do I save a trained Naive Bayes classifier to disk and use it to predict data?

Categories Python, Q&A Tags classification, machine-learning, python, scikit-learn Leave a comment
Older posts
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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