www.neuron.yale.edu

Hi
In my model, I have 20 nodes and I want to stimulate 3 nodes, chosen by the user, at the same time and to draw the answer on a graph.
How can i make it?

Very easily done with the GUI--bring up a graph and use its Plot what? tool to specify what
variables to plot. See the item
How do I plot something other than membrane potential?
in the FAQ list
http://www.neuron.yale.edu/neuron/faq/general-questions

If you're writing hoc code, use the Graph class's advar or addexpr methods. Read about
them here
http://www.neuron.yale.edu/neuron/stati ... html#Graph

Yes, it works.
But now, i try to stimulate a zone of my model with the help of the point process window.
How can i select a zone or more than one point with it?

By definition, a point process can only be located at a single point. To stimulate at multiple
locations, you must attach a different point process to each location.