Extracting Data Points From Ezplot

I am plotting the following implicit function using the following code:

 ezplot('(y^2)/2 + (((x^2)*y)^(1-1.2))/(1.2-1) - 2/x - 1/(1.2-1) +3/2',[0 6 0 4])

Which produces the following double-valued graphical solution:

However, I am only interested in the line that begins ~0 and increases with x. What I want to do is extract the x and corresponding y values for this line, and, despite a number of attempts, have failed in doing so thus far. Any help would be greatly appreciated.

[Star Strider]

Rather than explot, use ezsurf to see what the routine actually calculates. Then choose the appropriate row and column of ‘XData’, ‘YData’ and ‘ZData’. (This is in R2015b. I haven’t tried it in R2014a or earlier.)

Answer 1

[Walter Roberson]

The following might have changed as of R2014b.

In R2014a or earlier (and maybe later),

   ezh = ezplot('(y^2)/2 + (((x^2)*y)^(1-1.2))/(1.2-1) - 2/x - 1/(1.2-1) +3/2',[0 6 0 4]);
   ezch = get(ezh,'Children');
   xd1 = get(ezch(1),'XData');
   xd2 = get(ezch(2),'XData');
   yd1 = get(ezch(1),'YData');
   yd2 = get(ezch(2),'YData');
   first_part_mask = xd2 <= 1.0;
   first_x = xd2(first_part_mask);
   first_y = yd2(first_part_mask);
   second_part_mask = xd1 > 1.0;
   second_x = xd1(second_part_mask);
   second_y = yd1(second_part_mask);
   both_x = [first_x(:); second_x(:)];
   both_y = [first_y(:); second_y(:)];

Now the line you want is both_x together with both_y