def test_interpolation():
x = torch.linspace(0.01, 1, 100).unsqueeze(1)
grid = torch.linspace(-0.05, 1.05, 50).unsqueeze(0)
indices, values = Interpolation().interpolate(grid, x)
indices.squeeze_(0)
values.squeeze_(0)
test_func_grid = grid.squeeze(0).pow(2)
test_func_x = x.pow(2).squeeze(-1)
interp_func_x = utils.left_interp(indices, values,
test_func_grid.unsqueeze(1)).squeeze()
assert utils.approx_equal(interp_func_x, test_func_x)
def test_interpolation(self):
x = torch.linspace(0.01, 1, 100).unsqueeze(1)
grid = torch.linspace(-0.05, 1.05, 50).unsqueeze(1)
indices, values = Interpolation().interpolate(grid, x)
indices = indices.squeeze_(0)
values = values.squeeze_(0)
test_func_grid = grid.squeeze(1).pow(2)
test_func_x = x.pow(2).squeeze(-1)
interp_func_x = gpytorch.utils.interpolation.left_interp(indices, values, test_func_grid.unsqueeze(1)).squeeze()
self.assertTrue(test._utils.approx_equal(interp_func_x, test_func_x))
def test_interpolation(self):
x = torch.linspace(0.01, 1, 100).unsqueeze(1)
grid = torch.linspace(-0.05, 1.05, 50).unsqueeze(0)
indices, values = Interpolation().interpolate(Variable(grid), Variable(x))
indices = indices.squeeze_(0)
values = values.squeeze_(0)
test_func_grid = grid.squeeze(0).pow(2)
test_func_x = x.pow(2).squeeze(-1)
interp_func_x = utils.left_interp(indices.data, values.data, test_func_grid.unsqueeze(1)).squeeze()
self.assertTrue(utils.approx_equal(interp_func_x, test_func_x))