how can I import my data in to task =tsk() from mlr3verse

Question

[ali]

Hi everyone

my problem is when i want to add my own data , I get error ;

library("mlr3verse")

if (requireNamespace("praznik")) {
  task = mlr3::tsk("exn3")
  filter = flt("jmim")
  filter$calculate(task, nfeat = 2)
  as.data.table(filter)
}

Error: Element with key 'exn3' not found in DictionaryTask!