Replace categorical variables in mlrMBO with e.g., integer params with mapping.

[jozik]

No description provided.

[rajeeja]

mlr-org/mlrMBO#454

Issue appears due to insufficient init size as stated above, it has been isolated in the above script.

[jozik]

It looks like the embedded link in link above (mlr-org/mlrMBO#454)
Doesn't actually link to this file (so I'm including it here):
https://github.com/rajeeja/mlrmbo-bug/blob/master/mlrMBOMixedIntegerTest11a.R

[rajeeja]

I've implemented the solution mentioned, but error persists, it has to do with setting up learner. mlrMBO repo chain:
mlr-org/mlrMBO#454

[jozik]

I'm getting the following error when trying to run the example you provided:

Error in isScalarValue(x, na.ok, null.ok, "numeric") :
argument "resolution" is missing, with no default

When I comment out this line:

d1 = generateGridDesign(par.set, trafo = TRUE)

The error is avoided and the code runs without issue.

[rajeeja]

thanks, pushed a fix.

[jozik]

Do you still see the error? Or does ensuring that all the categorical variables are present take care of it?

[rajeeja]

Ensuring all categorical variable works only with NULL as learner.
The example is to show the error with surr.rf as learner.