Charting with stacked hybrid plot - how do I?

Question

Is there a way to stack column and line charts?
I want the same CartesianChart to have bars with multiple
series, and centered above them, I would like lines. I can get the
lines and columns on the same chart, but I dont' want the line
chart overlaid on top of the column chart. I want the line chart to
be above the bars.
LINE DATA HERE (axis from 0-100)
COLUMN DATA HERE (axis from 0-1 million)
Both will have to use the same Horizontal Access though. Does
anyone know how to do this? Do I have to write some custom
DataTransform or something? I would think that making
non-overlapping charts should be easy.

Answer 1

x = 0:0.01:20;
y1 = 200*exp(-0.05*x).*sin(x);
y2 = 0.8*exp(-0.5*x).*sin(10*x);
plotyy(x,y1,x,y2);
axis([0,20,-200,200]);
xlabel('Time (\musec)');
ylabel('Fast decay');
title('Multiple Decay Rates');
How do I write the 2nd Y title to 'Slow Decay'?