I am trying to define multiple pipelines sharing a single metrics file and this does not seem possible currently. I get an error when trying to add the same metric file to more than one pipeline.
My use-case is, I am doing some ML experiments and would like to have multiple models that I work on in parallel, for example a SVM and a Naive Bayes model (maybe more models in future), both sharing the same data and much of the pre-processing steps. Then I have 2 pipelines, which are very similar, sharing many stages: model_svm.dvc and model_nb.dvc. So they are in the same repository and I would like that they both use the same metric file so that when I call “dvc metrics show -T” it will show past results from both models.
Is this currently possible and if so how? Or am I trying to use the system in a way that was not intended, and if so could you recommend how I could restructure my project so that it fits better with how DVC was intended to be used?