How to find the error between 2 curve ?

Dear All,

I want to find the error between 2 curves as bellow.

The red curve is standard value 100% accuracy, while the green curve is noise value. I want to find the error between red and blue curve

Could anyone help me ?

Here is the code to plot 2 curve:

load matlab.mat

plot(x,table_A.Line1,'r', x,table_A.Line2,'g',LineWidth=2)

legend

Answer 1

[Karim]

Hey,

It depends on how you define the error. If you mean the difference between the two you can simply do the following:

load('matlab.mat')

MyDiff = table_A.Line2 - table_A.Line1;

figure
subplot(2,1,1)
plot(x,table_A.Line1,'r', x,table_A.Line2,'g','LineWidth',1.5)
grid on
legend('correct','with noise')

subplot(2,1,2)
plot(x,MyDiff,'LineWidth',1.5)
grid on
ylabel('error')
xlabel('data point')