The problem is we don't want any addition X axis smaller than -1.
So, this will work but this is not the way we want.

The figure will be used on professional journal, it shout not have any
X-axis that from -5 to -1 if there is no data there.


Unfortunately the invariant point is the axis minimum, so in order to have a
tick mark at zero, you have to cross axes at an integral number of major
units below zero. In other words, min = -5, major unit = 5, axis crosses
at -5, etc.