[R] Is there any Gauss-newton library/function in R?

Hi,I am a newbie to R. I wrote a simple Gauss-newton method in least square minimization problems, but it looks not working well. Is there any Gauss-newton library/function in R? Appreciate in advance! Hao [[alternative HTML version deleted]] _

Re: [R] Plot 2-d Polynomial without solving it

Thanks a lot! I got it! I haven't set the level before.Hao On Sat, Jul 4, 2009 at 6:33 PM, Duncan Murdoch wrote: > On 04/07/2009 3:31 PM, Hao Jiang wrote: > >> Hi Duncan,Thanks! >> >> But I still get a little confused about outer() func. Would give me a >> si

Re: [R] Plot 2-d Polynomial without solving it

wrote: > Hao Jiang wrote: > >> Hi, >> I want to plot a polynomial in the form like ax^2 + bxy + cy^2 + dx + ey + >> f >> =0 without solving it(since I may have 3 or 4 dimensional polynomial and >> it's really hard to solve). Is there any way to plot this

[R] Plot 2-d Polynomial without solving it

Hi, I want to plot a polynomial in the form like ax^2 + bxy + cy^2 + dx + ey + f =0 without solving it(since I may have 3 or 4 dimensional polynomial and it's really hard to solve). Is there any way to plot this kind of polynomial? Thanks a lot! Hao -- View this message in context: http://www