MATLAB-Based Classification of Hypokalemia by Principal Component Analysis and k Nearest Neighbor. - Ernesto M. Vergara; Glenn V. Magwili; Leonardo D. Valiente; Jill Angielaine S. Morales; Ma. Carmela P. Sapalaran; Kuianne P. Sultea; Liezel Angeline Z. Tolayba (ICBET, 2020)