Hi, Am looking for an R package that will provide the drawing of curves and arcs of arbitrary shapes to use in illustrations. For example bent lines and arrows. Allan.
Drawing curves
3 messages · Allan Kamau, Greg Snow, Paul Murrell
Depending on what you are trying to do, there may be other tools that will work better for you. For example xfig/jfig or Inkscape. You can create a plot, save it to a file, load it into one of those programs and add your curves/lines/arrows/etc. Inside of R the 'lines' function draws lines and the 'arrows' function draws arrows. You can use the 'locator' function to find points on the graph by clicking, then pass those points to the drawing function (or use type='l' with locator to draw the line more directly). Curves are usually approximated by many short line segments (using 'lines') or you can use the 'xspline' function to draw curves (actually the line segments). The 'symbols' function will put some types of symbols on a plot and the 'my.symbols' function in the TeachingDemos package will place user defined symbols on the plot. Hope this helps, if not, give a little more detail and maybe we can be of more help, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.snow at imail.org (801) 408-8111
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Allan Kamau Sent: Monday, September 15, 2008 9:21 AM To: r-help at r-project.org Subject: [R] Drawing curves Hi, Am looking for an R package that will provide the drawing of curves and arcs of arbitrary shapes to use in illustrations. For example bent lines and arrows. Allan.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Hi
Allan Kamau wrote:
Hi, Am looking for an R package that will provide the drawing of curves and arcs of arbitrary shapes to use in illustrations. For example bent lines and arrows.
Take a look at the 'grid' package, in particular, grid.xspline(), grid.curve(), and possibly grobX() and grobY(). There are some examples of what these can do in http://www.stat.auckland.ac.nz/~paul/Talks/rgraphs.pdf Paul
Allan.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Dr Paul Murrell Department of Statistics The University of Auckland Private Bag 92019 Auckland New Zealand 64 9 3737599 x85392 paul at stat.auckland.ac.nz http://www.stat.auckland.ac.nz/~paul/