Plot Measuring Results with ERRORBAR

Hello,

I would like to display the mean values from various measurements and of course the deviations using "errorbar".

Assuming the following series of measurements are given:

Test_01=[1 2 3 4 5 6]
Test_02=[1.5 2.5 3.5 4.5 5.5 6.5]
Test_03=[0.5 1.5 2.5 3.5 4.5 5.5]
x=[1 2 3 4 5 6]

Can a plot with errorbar be generated directly from this or does the mean value and deviations have to be calculated manually?

Answer 1

[Star Strider]

I would do something like this:

Test_01=[1 2 3 4 5 6];
Test_02=[1.5 2.5 3.5 4.5 5.5 6.5];
Test_03=[0.5 1.5 2.5 3.5 4.5 5.5];
x=[1 2 3 4 5 6];

Test_All = cat(1, Test_01, Test_02, Test_03);
TestMean = mean(Test_All);
TestStdv = std(Test_All);

figure
errorbar(x, TestMean, TestStdv)
grid
xlim(xlim+[-1 1])

The xlim call simply moves the first and last points away from the axis edges, and is optional.

Answer 2

[Ive J]

You should calculate meaningful error estimates yourself (SD, SEM, etc), and plot it with errorbar.

doc errorbar