perform_t_test: Perform t-tests

In antonvsdata/notame: Workflow for non-targeted LC-MS metabolic profiling

Perform t-tests

Description

Performs t-tests, the R default is Welch's t-test (unequal variances), use var.equal = TRUE for Student's t-test

Usage

perform_t_test(object, formula_char, all_features = FALSE, ...)

Arguments

object	a MetaboSet object
formula_char	character, the formula to be used in the linear model (see Details)
all_features	should all features be included in FDR correction?
...	additional parameters to t.test

Details

The model is fit on combined_data(object). Thus, column names in pData(object) can be specified. To make the formulas flexible, the word "Feature" must be used to signal the role of the features in the formula. "Feature" will be replaced by the actual Feature IDs during model fitting. For example, if testing for equality of means in study groups, use "Feature ~ Group".

Value

data frame with the results

See Also

t.test

Examples

t_test_results <- perform_t_test(drop_qcs(merged_sample), formula_char = "Feature ~ Group")

antonvsdata/notame documentation built on Sept. 14, 2024, 11:09 p.m.