_split_datalistAPI

[gkrisp98]

Hi, I am trying to use Cross Validation from MONAI on a nifti dataset. I have created the dataset like this:
dataset = ImageDataset(image_files = images, labels = labels) and I define the Cross Validation:
cvdataset = CrossValidation( dataset_cls=dataset, nfolds=5, seed=12345, section="training", transform=train_transform, )
When I try to run it to get the partitions I am getting this error: dataset class must have _split_datalist API.
Can someone help me to get over this error and use CV ?

[JohnMasoner]

Hey @gkrisp98 ,

The following code is the location of the error that prompted you:

if not hasattr(dataset_cls, "_split_datalist"):
    raise ValueError("dataset class must have _split_datalist API.")

The mean the ImageDataset have no _split_datalist.

you could create the dataset by DecathlonDataset it covers _split_datalist.

Hope this is useful to you.