On 21/10/2011 6:39 AM, knut-o wrote:
Hello
Is it possible to map a plot with horizontal lines like in the step-plot,
but without the vertical lines?


Not in the basic plot function, but you can write your own fairly easily, using segments(). For example:

x <- y <- 1:10
plot(x,y, type='n')
segments(x[-10], y[-10], x[-1], y[-10])

Duncan Murdoch

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