wilcoxon_rank_sum_test function

Wilcoxon Rank-Sum Test (Also called the Mann-Whitney U Test)

A nonparametric equivalent of the independent t-test

wilcoxon_rank_sum_test(
  data = NULL,
  iv_name = NULL,
  dv_name = NULL,
  sigfigs = 3
)

Arguments

• data: a data object (a data frame or a data.table)
• iv_name: name of the independent variable (grouping variable)
• dv_name: name of the dependent variable (measure variable of interest)
• sigfigs: number of significant digits to round to

Returns

the output will be a data.table object with all pairwise Wilcoxon rank-sum test results

Examples

wilcoxon_rank_sum_test(
data = iris, iv_name = "Species", dv_name = "Sepal.Length")