p_combine {Corbi}  R Documentation 
Combine the statistical significance results from several independent tests by using one of several methods.
p_combine(p, method = "sumlog", shrink = Inf)
p 
the numeric vector containing the pvalues need to combine. 
method 
the method use to combine the pvalues, can be "sumlog" (Fisher's method), "sumz" (Stoufferâ€™s method). 
shrink 
the number of pvalues used in calculation, which are uniform selected from original pvalue vector. 
This function will return a list with the following components:
p 
The combined pvalue. 
v 
The value of statistic. 

Use "sumlog" method: 
chisq 
The value of chisquared statistic. 
df 
The degrees of freedom of chisquared distribution. 

Use "sumz" method: 
z 
The value of sum z statistic. 