dear R wizards: could you please point me into the right direction? I would like to write a general function arrow(x1,y1,x2,y2), which naturally draws an arrow.
the basics of writing this function are of course easy. the only complication is that I would like the arrow not to exactly hit (x2,y2), but to stop short just a "tiny bit." alas, because I want my arrow() function to be general, I would rather not have to tell it the xlim and ylim plot parameters. So, I need something more akin to the absolute positioning by which the argument "pos" works within the text() function. In fact, optimally, I would adopt the default distance that the "pos=x" uses, and have an optional parameter that allows the user to change this. could someone please point me to an example of how to do something like this? regards, /iaw ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
