Add validation for non-numeric observed variables in prepare_data#327
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2426siya wants to merge 1 commit into
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Add validation for non-numeric observed variables in prepare_data#3272426siya wants to merge 1 commit into
2426siya wants to merge 1 commit into
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Fixes #324
This PR adds validation in prepare_data to ensure that all observed variables are numeric.
If a column contains non-numeric values, a clear ArgumentError is thrown instead of a runtime MethodError during computation (e.g., division on String).
This improves error clarity and prevents deep failures in mean_and_cov and downstream SEM computations.