wangbaili

sorry for long time no reply,I have to solve some health problem. The data is confidential,but I got same encode problem at this data[aa1.xlsx](https://github.com/mlr-org/mlr3pipelines/files/8306330/aa1.xlsx). This data is all factor except...

This the code aa

This is the error： Error in as_data_backend.data.frame(data, primary_key = row_ids) : Assertion on 'primary_key' failed: Contains duplicated values, position 2. This happened PipeOp encode's $train()