Inspect "'k' is bigger than the number of the blocks" error

[pat-s]

library(mlr3spatiotemporal)

library(mlr3)
task <- tsk("ecuador")

# Instantiate Resampling
rcv <- rsmp("spcv-block")
rcv$param_set$values <- list(folds = 20)
rcv$instantiate(task)
#> Error in blockCV::spatialBlock(speciesData = points, theRange = self$param_set$values$range, : 'k' is bigger than the number of the blocks

^{Created on 2019-09-03 by the reprex package (v0.3.0)}

[be-marc]

range or cols and rows are not set. Therefore, ResamplingSpCVBlock uses the default value of cols and rows, which is 4. You want to assign 20 folds to 16 blocks, which does not work.

[pat-s]

Thanks for the quick heads-up, saves me some time. Will account for it with an appropriate error msg. Maybe changing the default even.

[pat-s]

Now using rows = 4 and cols = 4 and returning a more informative error message if this combination is still < than folds.

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