need help drawing ellipse PLEASE

hi guys

I am trying to draw the orbits of an asteroid and earth for an assignment. I am using the pdeellip tool to do his. I have all the info needed and have plotted it. but the problem that I am having is that how do I set the x y label of the axes, set min max axis values and also how do I make it so the ellipse drawn is just the border lines and not filled. any help would be greatly appreciated. thank you.

{

clear all

clc

format long g

% eccentricity e_asteroid = 0.207598246; %given

e_earth = 0.01671123;

% Semi-major axis length

a_asteroid = 1.75; %AU calculated in part b

a_earth = 1; %AU

% Semi-minor axis length

b_asteroid = a_asteroid*(1-(e_asteroid^2))^0.5; %AU

b_earth = a_earth*(1-(e_earth^2))^0.5; %AU

pdeellip(0,0,a_earth,b_earth,pi/4,'Earth Orbit')

pdeellip(0,0,a_asteroid,b_asteroid,pi/4,'Asteroid Orbit')

}

[Image Analyst]

Read this: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup. Also, enclosing your whole code in braces means you're trying to make all of that the contents of a cell, which would probably throw an exception. Read up on cell arrays here: http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F, and another way to do ellipses in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_create_an_ellipse.3F