def leave1out(learner, dataset):
    "Leave one out cross-validation over the dataset."
    return cross_validation(learner, dataset, k=len(dataset.examples))
def leave1out(learner, dataset):
    "Leave one out cross-validation over the dataset."
    return cross_validation(learner, dataset, k=len(dataset.examples))
def leave1out ( learner , dataset ) : return cross_validation ( learner , dataset , k = len ( dataset . examples ) )
Leave one out cross-validation over the dataset.
Leave one out cross - validation over the dataset .