Scale can:
- start from "0" or from the least value
- be linear or logarithmic
As different analysis requires different scales, let's make this adjustable. I propose to make an "options" icon (near the Y axis or one per the whole graph) and open a dialog on click on it with extended options.
We should also devise clear visual representation of each scheme so that it will be immediately clear to the user what scale is used.
The option should be remembered per graph-type.
