Displaying 2 results from an estimated 2 matches for "xlabstr".
2003 Feb 10
2
Wireframe (lattice) questions
...hack the code if necessary.
2. Is it possible to suppress plotting of all sides of the cube except
for the axes?
3. Is there a reliable way to print expressions in wireframe plots? I'm
using the same code I use for other plots, but can't seem to get Greek
letters in the plots. E.g.,
xlabstr <- expression(rho);
....
print(wireframe(z ~ p1 * p2,
data=data,
zoom=zoom,
drape = drape,
perspective = perspective,
colorkey = colorkey,
xlab=xlabstr,
y...
2004 Dec 09
3
surf.ls
Hello,
I am looking into description of surf.ls(spatial)
and see under value $beta - the coefficients.
When I use polynomial of degree 2 to fit surface
I expect to get 4 coefficients:
z = a_1 x^2 + a_2 xy + a_3 y^2 + a_4
What do beta really stand for and why do I get
$beta vector of length 6?
Thakns,
Mark