Filling area in a plot

I have following data set.

x y

0.01 1.88

0.05 1.92

0.10 1.60

0.15 1.23

0.20 1.00

0.25 1.00

0.95 1.00

0.99 1.00

I want to create a plot like this:

I also want to add marker points as well to the graph. thank you.

Answer 1

[KSSV]

 A = [0.01  1.88 
   0.05  1.92 
   0.10  1.60 
   0.15  1.23 
   0.20  1.00 
   0.25  1.00 
   0.95  1.00 
   0.99  1.00 ] ;
x = A(:,1) ; y = A(:,2) ; 



x1 = [x(1:5); x(1)] ; 
y1 = [y(1:5); 1] ;

x2 = [x ; 1 ; min(x) ; x(1) ] ;
y2 = [y ; 2 ; 2 ;y(1)] ;

patch(x1,y1,'r')
hold on
patch(x2,y2,'b')

[Milan Kumar]

Add square marker for the points?

[KSSV]

 A = [0.01  1.88 
   0.05  1.92 
   0.10  1.60 
   0.15  1.23 
   0.20  1.00 
   0.25  1.00 
   0.95  1.00 
   0.99  1.00 ] ;
x = A(:,1) ; y = A(:,2) ; 



x1 = [x(1:5); x(1)] ; 
y1 = [y(1:5); 1] ;

xi = linspace(min(x),max(x)) ; 
yi = linspace(min(y),max(y)) ; 

[X,Y] = meshgrid(xi,yi) ; 

idx = inpolygon(X,Y,x1,y1) ; 

figure
hold on
plot(X(idx),Y(idx),'+r')
plot(X(~idx),Y(~idx),'xb')

[Milan Kumar]

Thank you for all the help. One last thing if for the follwoing data set:

A = [0.01 1.88

0.05 1.92

0.082 1.88

0.10 1.60

0.15 1.23

0.20 1.00

0.25 1.00

0.95 1.00

0.99 1.00 ]

The graph I want is:

Please help in understanding the logic of creating area.

[KSSV]

Logic is simple......you need to define the polygons...provide the polygon vertices.