DataFrame Files

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Many of visitor algorithms were generalized to work seamlessly with both scalar (i.e. columns of numbers) and multidimensional (i.e. columns of vectors or arrays) datasets, and many others are forthcoming. This justifies increasing the major version number. Added more tests in general Enhanced documentations Implemented gen_join() function Implemented ChiSquaredTestVisitor visitor Implemented SHAPValuesVisitor visitor Implemented get_matrix() with column names passed in Implemented solve() function in matrix Implemented ldlt() function in matrix Added matrix/vector, vector/vector, array/array, … arithmetic operators to matrix source code Implemented ARIMAVisitor visitor Implemented LSTMForecastVisitor visitor Enhanced interfaces by using C++20 requires. Implemented kshape_groups() function Made parallel_loop() aligned with cache line width hence improving multithreading performance significantly Implemented count() function Implemented class_count() function Implemented AnomalyDetectByKNNVisitor visitor Implemented BIRCHVisitor visitor Implemented get_[data|view]_by_birch() function Made clustering algorithms and many other statistical algos work seamlessly with multidimensional datasets.