A string describing the test from which the p-value is derived.
Arguments
method
(string) one of chisq, cmh, cmh_sato, cmh_wh, fisher, or schouten;
specifies the test used to calculate the p-value.
alternative
(string) whether two.sided, or one-sided less or greater p-value
should be displayed.
method_only
(flag) whether to return only the method description,
including the alternative hypothesis specification, without the "p-value"
part of the description.