Hello Chaturika,
I am having trouble understanding exactly what you are trying to do in this situation. If you mean you want to make different parts of the same 'errorbar' different colors, then that is not possible unless you are manually drawing the lines yourself. An 'errorbar' can only be one color. However, you can specify this color when creating the 'errorbar'. Looking at the Matlab 'errorbar' documentation, you can see one example of how to do this:
Additionally, in the top right corner, there is an "Open this Example" button which will point towards a location in your Matlab installation which has some example files.
Hope this information is helpful and you are able to resolve your issue.
Thanks,
Ryan Santos
