Avoid Duplication or Error When Updating Form in Laravel

I have 2 tables beneficiaries and addresses joined with relation beneficiary_id as foreign key while each beneficiary record should have 1 address only. The records are duplicated or fails to insert request() in the second table. When I use the below code the records are duplicated public function update(UpdateBeneficiaryRequest $request, Beneficiary $beneficiary, Address $address) {…

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How to convert sparse vector to dense vector in spark pipeline?

Now, there is a pipeline which include IDF, CountVectorizer, ChiSqSelector, DecisionTreeClassifier. I transformed this pipeline, the error is: Feature 0 is marked as Nominal (categorical), but it does not have the number of values specified. I thought that the pipeline produced the sparse vector and fitted this vector into DecisionTreeClassifier, so I need to convert…

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