plot a snake graph

How to plot a continuous graph on X-Y plane which follows pattern like

x=0:1:10; y=0;

plot (x,y);

hold on;

then y=0.1; x=10:-1:0;

plot (x,y);

hold on;

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upto y=10; x=10; % the plot should look like a snake

[KSSV]

How about using sin?

[Harry S]

I want my plot to be in this manner with equal spacing

Answer 1

[KSSV]

Play around with this:

x = 1:100 ;
y = 1:100 ;

ind1 = reshape(y,5,[])' ;
y(ind1(1:2:end,:)) = -0.5 ;
y(ind1(2:2:end,:)) = 0.5 ;

plot(y,x)
xlim([-1 1])