im having the error "error in eval" come up when trying to get my T-test to work can anyone work out why

General
2

Here is what the code should produce

t.test(carb ~ am, data = mtcars, var.equal = TRUE)
#> 
#>  Two Sample t-test
#> 
#> data:  carb by am
#> t = -0.31565, df = 30, p-value = 0.7545
#> alternative hypothesis: true difference in means between group 0 and group 1 is not equal to 0
#> 95 percent confidence interval:
#>  -1.391178  1.018709
#> sample estimates:
#> mean in group 0 mean in group 1 
#>        2.736842        2.923077

Created on 2023-04-22 with reprex v2.0.2

Why it doesn't could be due to several reasons, but I can't tell without ;a reprex (see the FAQ. So, start off by confirming that

  1. origin_label is in namespace
  2. it contains variables cycles and mpg
  3. the grouping factor has exactly two levels