Efficient way to do histogram

[Diogo Valada]

Hey

Is there a way I can set a default y for every absent integer x axis value?

For Example:

I send this lists to the plotter:

x=[1, 4, 6]

y=[8, 9, 7]

And I want y(2)=y(3)=y(5)=0

Is there a way to set this rule?

Basically, what I want is to do an histogram-like graph, in which i don't have non present x values (in the list) have a corresponding 0 on the graph.