fill color in stairs plot

I have a two data samples

data1=rand(96,1); %random number with 96*1

data2=zeros(96,1)+mean(data1);

I would like to plot ''stairs'' of data1 and date 2 in one figure. data 2 is mean of data 1, now i would like to plot somting like this in stairs for example if data2 is > data1 fill with green color, other wise with yellow color. here red line is data1 and data2 is mean.

Answer 1

[Dyuman Joshi]

data1=rand(96,1); %random number with 96*1
avg=mean(data1);

%Get the x and y coordinates corresponding to the stairs plot
[x,y] = stairs(data1);

%Visualizing the stairs plot with the mean value for reference
figure
plot(x,y)
yline(avg,'k')

%Comparing values with mean in order to get two different plots
yb=min(y,avg);
ys=max(y,avg);

figure
hold on
box on

%Plotting filled area 2D plot with mean value as the baseline
area(x,yb,avg,'FaceColor','g')
area(x,ys,avg,'FaceColor','y')
yline(avg,'k')

[Jayachandra Malavatu]

Thanks Joshi , its working well.

[Jayachandra Malavatu]

[Jayachandra Malavatu]

what if there is two values like here 160 and 250, below 160 is with green color and above 250 is with yellow color.

[Dyuman Joshi]

What should be the color for values between 160 and 250?

[Jayachandra Malavatu]

its white , only graph should be there something like shown in figure above

[Dyuman Joshi]

Here's a workaround.

I'll update you if I find a better solution.

%Random values for example
data = [randi([120 210],1,50) randi([200 220],1,15) randi([210 300],1,50)];

[x,y]=stairs(data);
valmin = 160;
valmax = 250;

ymin = min(valmin,y);
ymax = max(valmax,y);


figure
hold on
area(x,ymax,valmax,'FaceColor','b','EdgeColor','w','ShowBaseLine',0)
area(x,ymin,valmin,'FaceColor','y','EdgeColor','w','ShowBaseLine',0)
area(x,valmax*ones(size(x)),valmin,'FaceColor','w','EdgeColor','w')
plot(x,y,'k-')