[R] Calculate the angles for a point dataset?

2007-09-13 Thread zhijie zhang
Dear Rusers, I'd like to take the cases of cancer of the larynx in chorley(spatstat) to explain my question. I want to join the points of cancer of the larynx with the disused industrial incinerator to generate lines, and then calculate the angles of these line comparing the horizontal line?

Re: [R] Calculate the angles for a point dataset?

2007-09-13 Thread Rolf Turner
On 14/09/2007, at 3:41 PM, zhijie zhang wrote: Dear Rusers, I'd like to take the cases of cancer of the larynx in chorley (spatstat) to explain my question. I want to join the points of cancer of the larynx with the disused industrial incinerator to generate lines, and then calculate