[R] How to break an axis?

From: Bo Peng <ben.bob_at_gmail.com>
Date: Tue 24 May 2005 - 11:59:53 EST


Dear list,

I need to plot four almost horizontal lines with y-values around 1,3,4, 400. If I plot them directly, the first three lines will be indiscernible so I am thinking of breaking y-axis into two parts, one with range (0,5), another (395,400). Is there an easy way to do this?

I can think of two ways:
1. use two plots and draw axes manually. The plot margins, are however difficult to adjust.
2. use one plot, adjust y-values of the lines and draw y-axis manually. But, how would I break y-axis and add separation symbols *on* yaxis? (By separation symbol, I mean something like
------//------

Many thanks in davance.
Bo



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