add vertical line on a plot for Confidence intervalle.

Hello, here is my situation,

I have a plot with lines, data points and I would like to add on the data point the confidence intervalle (vertical line with ymin and ymax max for each x values)

but when I try to plot, the CI on the data point, it is a horizontale line and not a verticale line for each x value.

Here is my code (simplified for easier explanation)

hold on

%model lines

p1=plot([1 2 3 4],[1 0.8 0.7 0.6],'g','LineWidth',1); % plot model line (I index the plot for legend latter)

p2=plot([1 2 3 4],[1 0.5 0.3 0.2],'b','LineWidth',1); % plot model line 2

%data points

plot([1 2 3 4],[1 0.75 0.65 0.5],'.','MarkerSize',30,'Color','g'); %plot data point

plot([1 2 3 4],[1 0.6 0.25 0.18],'.','MarkerSize',30,'Color','b'); %plot data point 2

%and plot the CI on data points, HERE IS THE ISSUE, I would like vertical line as errorbar with the specified ymin and ymax values

%but I got 2 lines instead of vertical lines for each x values

plot([[1 2 3 4] [1 2 3 4]],[[1 0.8 0.7 0.6] [1 0.7 0.6 0.45]],'g'); %should be error vertical line arround datapoint

plot([[1 2 3 4] [1 2 3 4]],[[1 0.65 0.3 0.2] [1 0.56 0.22 0.15]],'b'); %should be error vertical line arround datapoint

hold off

Thank you in advance for your answer

Kind regards,

Sylvain

Answer 1

[Philippe Lebel]

Have you tried this function?

https://www.mathworks.com/help/matlab/ref/errorbar.html