Meaning of calculating edge attributes

[hkim716]

Hi Matt,

In the Cartesian transform, we calculate edge_attr from edge_index and pos.

In the script of Cartesian transform,

cart = pos[row] - pos[col]
max_value = cart.abs().max()
cart = cart / (2 * max_value) + 0.5

I guess cart means the relative distance between the two connected nodes, and max_value means the distance where two node has the biggest cart value.
Then what is the meaning of the final cart value, which will become edge_attr?

[rusty1s]

You are right. The final cart value is thus normalized to interval [0, 1].