Calculating and add the std error bar from the mean values

132 visualizzazioni (ultimi 30 giorni)
Hi everyone
I have data vector (named: Mean_data) representing the mean of 6 different treatments. I already plotted this Mean_data as a bar graph, but I would like to add the std error bar on the top of each bar. My question is, how can I calculate the std error bar from the mean that I have already got and plot it on the top of each bar.
here is my code and data.
Mean_data=[20.43 8.61 15.37 2.70 29.09 31.59];
% Create figure
figure('Color',[1 1 1]);
% Create axes
axes1 = axes;
hold(axes1,'on');
% Create bar
bar(Mean_data,'DisplayName','Photosynthesis','FaceColor',[0 0 1],...
'BarWidth',0.4);
% Create ylabel
ylabel('µmol m⁻² s⁻¹','FontSize',15);
% Create title
title({'Average of response to each treatment'});
hold(axes1,'off');
% Set the remaining axes properties
set(axes1,'FontSize',12,'FontWeight','bold','XColor',[0 0 0],'XGrid','on',...
'XTick',[1 2 3 4 5 6],'XTickLabel',...
{'treatment1','treatment2','treatment3','treatment4','treatment5','treatment6'},...
'YColor',[0 0 0],'YGrid','on','ZColor',[0 0 0]);
Thanks in advance

Risposta accettata

Scott MacKenzie
Scott MacKenzie il 28 Apr 2022
Modificato: Scott MacKenzie il 28 Apr 2022
You can't calculate the standard error from the means. You need the raw data. If the raw data (used to calculate the means) are in a matrix M, then the standard error vector is
se = std(M) / sqrt(size(M,1));

Più risposte (0)

Categorie

Scopri di più su Data Distribution Plots in Help Center e File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by