man/examples/examples-two-sample-test.R

In statsExpressions: Tidy Dataframes and Expressions with Statistical Details

# ----------------------- within-subjects -------------------------------------

# data
df <- dplyr::filter(bugs_long, condition %in% c("LDLF", "LDHF"))

# for reproducibility
set.seed(123)

# ----------------------- parametric ---------------------------------------

two_sample_test(
  df,
  condition,
  desire,
  subject.id = subject,
  paired = TRUE,
  type = "parametric"
)

# ----------------------- non-parametric -----------------------------------

two_sample_test(
  df,
  condition,
  desire,
  subject.id = subject,
  paired = TRUE,
  type = "nonparametric"
)

# ----------------------- robust --------------------------------------------

two_sample_test(
  df,
  condition,
  desire,
  subject.id = subject,
  paired = TRUE,
  type = "robust"
)

# ----------------------- Bayesian ---------------------------------------

two_sample_test(
  df,
  condition,
  desire,
  subject.id = subject,
  paired = TRUE,
  type = "bayes"
)

# ----------------------- between-subjects -------------------------------------

# for reproducibility
set.seed(123)

# ----------------------- parametric ---------------------------------------

# unequal variance
two_sample_test(ToothGrowth, supp, len, type = "parametric")

# equal variance
two_sample_test(ToothGrowth, supp, len, type = "parametric", var.equal = TRUE)

# biased (Cohen's d) effect size
two_sample_test(ToothGrowth, supp, len, type = "parametric", effsize.type = "d")

# ----------------------- non-parametric -----------------------------------

two_sample_test(ToothGrowth, supp, len, type = "nonparametric")

# ----------------------- robust --------------------------------------------

two_sample_test(ToothGrowth, supp, len, type = "robust")

# ----------------------- Bayesian ---------------------------------------

two_sample_test(ToothGrowth, supp, len, type = "bayes")