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rdataframep-valuesignificance

How to get p-values only in significance test in R

I m working on significance tests in R, especially wilcox.test. I check for example column A of my dataframe data.

wilcox.test(data$A, mu=3)

Afterwards I get a lot of data and text in the console. Is there a posibility to get only the p.value? I hope it will be a bit more clear, when I check the other columns too.

Solution

  • The output is a list, so extract with $ or [[

    out <- wilcox.test(data$A, mu=3)
out$p.value

    We can get more info by checking the str

    str(out)

    If there are more columns, loop over the columns with lapply/sapply and extract the p.value

    sapply(data[c("A", "B")], function(x) wilcox.test(x, mu = 3)$p.value)