Combine the statistical significance results from several independent tests by using one of several methods.
p_combine(p, method = "sumlog", shrink = Inf)the numeric vector containing the p-values need to combine.
the method use to combine the p-values, can be "sumlog" (Fisher's method), "sumz" (Stouffer<U+2019>s method).
the number of p-values used in calculation, which are uniform selected from original p-value vector.
This function will return a list with the following components:
The combined p-value.
The value of statistic.
Use "sumlog" method:
The value of chi-squared statistic.
The degrees of freedom of chi-squared distribution.
Use "sumz" method:
The value of sum z statistic.