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Tag: scikit-learn

SKLearn & ElasticNet: Cross validation fails when using Accuracy as a metric

I have a binary classification problem. I’ve been using cross validation to optimize the ElasticNet parameters. However ElasticNet only seems to work when I supply roc_auc as the scoring method to be used during CV, However I also want to test out a wide range of scoring methods, in particular accuracy. Specifically, when using accuracy, ElasticNet returns this error: However

do i need to use exactly same attribute names to properties in custom preprocessing class which inherit scikit learn BaseEstimator?

when writing custom classes inherit from BaseEstimator of the sklearn throwing AttributeError: object has no attribute . but that attribute is present and has values. print(null) execute or null. then it throws the above attribute error. traceback shows that this error happens in getattr() in sklearn base. I found that this is caused by attributes that assign to different property

How to use pytest fixture with fixture factory?

In scikit-learn, there is a function parametrize_with_checks() that is used as a pytest fixture factory–it returns a pytest.mark.parametrize fixture, and is called as a decorator with an iterable of estimators, e.g. My issue is that my list of estimators may change (or I may have multiple lists), and each list I am setting up in a fixture. Here is a

How to make dotted line in a binary array

how to create the dotted line in the below NumPy array bh=make_figure(b,’gh’) requirement: how to convert element 1 into 0 with the step of two expected outputs is like I tried with a brute force algorithm, but I am not able to find the solution output array looks like for visual representation like making a dotted line Answer Here’s one

How to Merge arrays generated from the for loop

for a example: I have array a my current code Current output: Required output: 1)If i return the variable border in the above function it onlx gives the value of first array, so its returns both the arrays with print function. 2)How to combine both the array like mentioned below expected ouput Answer You could use an array to collect