Axis Modification (4 different type axis)

I'm looking to create a plot that show four different scales:

• +y axis would be frequency (HZ)
• +x axis would be phase delay (deg)
• -y axis would be damping ratio (unitless)
• -x would be yaw velocity gain (deg/s/deg or 1/s)

I can scale the plot no problem, but the tricky part of what I'm asking is that the phase delay axis needs to from -90 to 0. The -90 would be the origin and it would increase to 0 on the +x axis.

I could just flip the phase lag axis with the yaw velocity gain to where it becomes a matter of just scaling everything properly. That will be my back-up plan if what I'm asking can't be done in Matlab.

Here's my code (you'll notice why scaling is important):

a1=0.2 %Heading Easiness (1/s)
fn=0.6 %Heading Responsiveness (Hz) 
chi=0.7 %Directional Dampening (No Units)
phi=80 %Following Controllability (deg)

%%Rhombus Skeleton
%Car 1

x1=[-a1 0 phi 0 -a1];
y1=[0 fn 0 -chi 0];

%Plot
plot(x1,y1)
grid

Thanks!

Answer 1

[Brent]

I found exactly what I was looking for in File Exchange. It's more of a spider plot.

http://www.mathworks.com/matlabcentral/fileexchange/22708-spider-plot-tool

Answer 2

[Jan]

Does a reversed X-axis solve your problem?

plot(1:10);
set(gca, 'XDir', 'reverse')

[Brent]

It's a start...The +x axis now has negitive values and the -x axis now has postive values (so far so good!). But now I need the +x axis to start at -90 and increase to 0 rather than starting at zero and decreasing to -90. Is that even possible?