Plot Measuring Results with ERRORBAR

5 views (last 30 days)
Mepe
Mepe on 10 Dec 2020
Answered: Ive J on 10 Dec 2020
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?

Answers (2)

Star Strider
Star Strider on 10 Dec 2020
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.

Ive J
Ive J on 10 Dec 2020
You should calculate meaningful error estimates yourself (SD, SEM, etc), and plot it with errorbar.
doc errorbar

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by