mode

type: string, default: major

neato supports modes:

• mode="major": neato uses stress majorization¹.
• mode="KK": neato uses the Kamada-Kawai² version of the gradient descent method. KK is sometimes appreciably faster for small (number of nodes < 100) graphs. A significant disadvantage is that KK may cycle.
• mode="sgd": neato uses a version of the Stochastic Gradient Descent³ method. sgd's advantage is faster and more reliable convergence than both the previous methods, while sgd's disadvantage is that it runs in a fixed number of iterations and may require larger values of maxiter in some graphs.

There are two experimental modes in neato:

• mode="hier", which adds a top-down directionality similar to the layout used in dot, and
• mode="ipsep", which allows the graph to specify minimum vertical and horizontal distances between nodes. (See the sep attribute.)

• Graphs

Note: neato only.