The Wilcoxon test compares two paired groups and comes in two versions ... The Wilcoxon rank sum test can be used to test the null hypothesis that two populations have the same continuous distribution ...

Particulate matter (PM2.5) is a mixture of small particles and droplets less than 2.5 micrometers in diameter. It is regulated in outdoor air in the United States by the U.S. Environmental Protection ...

now 10 nodes Y <- ptsd[,1:10] # exploratory hypothesis testing fit<- explore(Y) # select E <- select(fit, alternative = "exhaustive") The option alternative = "exhaustive" compares three hypotheses: ...