def __init__(self):
        self.ensemble_url = self.url + ENSEMBLE_PATH
Get value in [0..1] of height index y
dataset/ETHPy150Open bigmlcom/python/bigml/ensemblehandler.py/EnsembleHandler.__init__--crossover with--dataset/ETHPy150Open enthought/mayavi/tvtk/util/tk_gradient_editor.py/FunctionControl.Channel.get_index_value