Esta é uma classe em PHP que contém funções que implementam alguns cálculos estatísticos. Os algoritmos que representam as fórmulas estatísticas estão escritos em uma estrutura simples e semelhante a aplicação pura das respectivas fórmulas, para deixar o código o mais limpo possível, e assim, didático.
Até o momento, estas são algumas das fórmulas estatísticas que estão implementadas:
Obs.: As funções possuem versões para dados agrupados ou não agrupados e para dados amostrais ou populacionais. Esta classe não utiliza a extensão PECL "stats" pois a ideia é demonstrar os algoritmos.
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