Axis range should allow for a minimum value and still scale.

Axis range requires min, max in tuple. Would be great to be able to just pass a min and have graph auto scale the max. Use case: I want all my charts y axis to to start at 0 but the y values I'm charting could range from 4-15 on some charts to 3-60 on others. Right now to start at 0 I have to set all my charts to 0-60 which leaves ton of wasted space on the 4-15 charts.

Start by locating the axis-range handling and the code that computes automatic maximum values. Check how a supplied minimum currently interacts with tuple ranges and automatic scaling. Done means charts can keep a requested minimum, such as 0, while deriving the maximum from the plotted values without unnecessary empty space.

Written by the indexing model from the issue text.