def setUp(self):
anchors = FreeViz.init_radial(len(self.data.domain.attributes))
self.projector = projector = FreeViz(scale=False,
center=False,
initial=anchors,
maxiter=10)
self.projector.domain = self.data.domain
self.projector.components_ = anchors.T
self.projection = FreeVizModel(projector, projector.domain, 2)
self.projection.pre_domain = self.data.domain
def init_projection(self):
anchors = FreeViz.init_radial(len(self.effective_variables)) \
if self.initialization == InitType.Circular \
else FreeViz.init_random(len(self.effective_variables), 2)
self.projector = FreeViz(scale=False, center=False,
initial=anchors, maxiter=10)
data = self.projector.preprocess(self.effective_data)
self.projector.domain = data.domain
self.projector.components_ = anchors.T
self.projection = FreeVizModel(self.projector, self.projector.domain, 2)
self.projection.pre_domain = data.domain
self.projection.name = self.projector.name