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Calculation based on Rosenthal's formula (1994). N stands for the number of measurements.

Source: R/utils.R
rFromWilcox.Rd

Calculation based on Rosenthal's formula (1994). N stands for the number of measurements.

Usage

rFromWilcox(wilcoxModel, N)

Arguments

wilcoxModel

the Wilcox model

N

number of measurements in the experiment

Value

Invisibly returns a list with components:

  • r: effect size as a numeric scalar.

  • z: corresponding z-statistic.

  • text: character string that is also sent to the console.

Examples

set.seed(1)
d <- data.frame(
  group = rep(c("A", "B"), each = 10),
  value = rnorm(20)
)
w <- stats::wilcox.test(value ~ group, data = d, exact = FALSE)
rFromWilcox(w, N = nrow(d))
#> value by group Effect Size, r = 0.177, z = -0.794