perform_t_test: Perform t-tests

Description Usage Arguments Details Value See Also Examples

Description

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

Usage

1
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) Defaults to "Feature ~ group_col(object)

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

1
t_test_results <- perform_t_test(drop_qcs(merged_sample), formula_char = "Feature ~ Group")

antonvsdata/amp documentation built on Jan. 8, 2020, 3:15 a.m.