Max Kuhn

It doesn't appear to say what metric is used for optimization ([context](https://forum.posit.co/t/influence-of-metric-set-on-workflow-tuning/187734/2)). We can use the same verbiage as `tune_bayes()`.

I've read #487... Not certain yet but I feel like we will want users to be able to do something different from what the original split does. _If_ that's the...

Right now the middle data are labeled as "Assess": ``` r library(tidymodels) set.seed(19) ad_v_fold [1] "vfold_split_inner" "vfold_split" "rsplit" ``` Created on 2024-05-23 with [reprex v2.0.2](https://reprex.tidyverse.org) That should say the current...

remove step_ns and similar from docs

1

And use the `step_spline_*()` functions instead. `tune_grid()` uses them and maybe others.

better error when passing a preprocessor with a workflow

1

In the code below, the `tune_grid` function takes a workflow and (inappropriately) a recipe. The code interprets the recipe as going to the `...` and issues an unhelpful warning. We...

add a function to debias resampling estimates

1

["A bias correction for the minimum error rate in cross-validation"](https://scholar.google.com/scholar?hl=en&as_sdt=0%2C7&q=A+bias+correction+for+the+minimum+error+rate+in+cross-validation&btnG=) is pretty simple (and I have an implementation).

No so much a code issue but it would be good to do some benchmarking (using [syrup](https://github.com/simonpcouch/syrup)) across forking, psock, and mirai. I'd be interested in how memory is utilized...

The process stops if the GP fit fails or if a model fails. In the first case, we can just randomly sample and in the second, fit the GP to...

Add a check_workflow_size argument to the control functions

2

[This check](https://github.com/tidymodels/tune/blob/35464b959ebb4b82a15f694d2e6c9fb252489416/R/tune_grid.R#L415) can be a little annoying and we have an arbitrary cutoff. This would make an argument for the cutoff.

For example: - [here](https://github.com/tidymodels/workflowsets/blob/476178b6b11e5cf67136024f00d096038d3a79e6/R/workflow_set.R#L326) we could say what type of object the input is - in [this case](https://github.com/tidymodels/workflowsets/blob/main/R/workflow_set.R#L376), it would be good to know which IDs are not unique (which...