Why am I unable to set the properties of the line objects of the ERRORBAR function in MATLAB 6.5 (R13)?

I am using the ERRORBAR function in MATLAB 6.5 (R13):

X = 0:pi/10:pi;

Y = sin(X);

E = std(Y)*ones(size(X));

errorbar(X,Y,E,'LineWidth',3);

On executing this code I receive the following error:

 ??? Error using ==> errorbar

 The sizes of X, Y, L and U must be the same.

I do not receive this error while using the PLOT or the PLOT3 functions in MATLAB 6.5 (R13).

Answer 1

[MathWorks Support Team]

This enhancement has been added in MATLAB 7.0 (R14) and later versions. For previous releases, read below for any possible workarounds.

This is the expected behavior of the ERRORBAR function in MATLAB 6.5 (R13). It is a limitation with the ERRORBAR function that you cannot set the "LineWidth", "MarkerEdgeColor", "MarkerFaceColor" and the "MarkerSize" or any other properties by specifying the property name and its value. All the properties can be set by using PLOT or the PLOT3 functions in MATLAB 6.5 (R13). You can however set the "LineStyle", "MarkerSymbol" and the "Color" properties by giving all these 3 properties in a single argument as shown in the code below:

errorbar(X,Y,E,'-.r*');

To workaround this issue, you can get a handle to the errorbar's line graphic objects and then set the properties of these line objects as shown below:

H = errorbar(X,Y,E);

set(H(1),'LineWidth',3);

set(H(2),'MarkerSize',12);