how to draw a vertical line from points to x-axis
Anny Here's one way: plot(0:10, 0:10, pch=16) lines(rep(0:10, each=3), t(matrix(c(0:10, rep(c(0,NA), each=11)), ncol=3))) HTH .... Peter Alspach
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Anny Huang Sent: Monday, 8 September 2008 8:49 a.m. To: r-help at r-project.org Subject: [R] how to draw a vertical line from points to x-axis Hello, I want to know how to draw a line connecting each point to the x-axis perpendicularly (i.e. a vertical line). abline(v=...) seems not to work for my purpose, because it runs over the data point. Can anyone help? Thanks. Anny [[alternative HTML version deleted]]
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