auto t test

Performs a t.test on 2 populations for numeric variables.

auto_t_test(data, col, ..., var_equal = FALSE, abbrv = TRUE)

Arguments

data

dataframe

col

a column with 2 categories representing the 2 populations

...

numeric variables to perform t.test on. Default is to select all numeric variables

var_equal

default FALSE; t.test parameter

abbrv

default TRUE; remove some extra columns from output

Value

dataframe

Examples

iris %>%
 dplyr::filter(Species != "setosa") %>%
 auto_t_test(col = Species)
#> # A tibble: 4 × 7
#>   name         versicolor_mean virginica_mean versico…¹ virgi…²  p.value signi…³
#>   <chr>                  <dbl>          <dbl>     <dbl>   <dbl>    <dbl> <chr>  
#> 1 Petal.Width             1.33           2.03        50      50 2.11e-25 ***    
#> 2 Petal.Length            4.26           5.55        50      50 4.90e-22 ***    
#> 3 Sepal.Length            5.94           6.59        50      50 1.87e- 7 ***    
#> 4 Sepal.Width             2.77           2.97        50      50 1.82e- 3 **     
#> # … with abbreviated variable names ¹​versicolor_nsize, ²​virginica_nsize,
#> #   ³​significance