Consider the following example:
[ X, Y, Z ] = peaks( 30 );
figure( 100 );
surfc( X, Y, Z );
zlabel( \'Absolute Values\' );
colormap jet;
c = colorbar( \'Loca
As I wrote in your answer, I think a better choice for showing two related values is not to create a new axis for that, but to show them one near the other. Here is a suggestion:
[X,Y,Z] = peaks(30);
surfc(X,Y,Z);
zlabel('Absolute (Relative) Values');
colormap jet
Z_Scl = 0.01;
zticks = get(gca,'ZTick');
set(gca,'ZTickLabel',sprintf('%g (%g)\n',[zticks;zticks.*Z_Scl]))