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R is the perfect language for creating a variety of chi-square tests, which are used to perform statistical analyses of counts of data. Here's how, with some sample code. A chi-square test (also ...

A chi-square (also called chi-squared) test is a classical statistics technique that can be used to determine if observed-count data matches expected-count data. A chi-square (also called chi-squared) ...

A statistical test that allows one to determine whether observed quantities of a specific characteristic differed from the expected value purely by chance.

In this paper a new method is proposed for grouping a sample or a population of observations of a continuous statistical variable which presents good properties. By the new method it is possible to ...

This is a preview. Log in through your library . Abstract In many biological problems, the experimenter may prefer to use a chi-square test for linear trends in proportions rather than the standard ...