Hi, I need some help with plotting. I have plotted two vectors A and B. Now I want to introduce a variation in vector A (10% variation dependent on some function, for simplicity, let's suppose linear), and plot on top of A as a shaded (continuous) error bar . How can I do such a plot in Matlab? (Something like attached picture, red line is actual data and blue is the variation in data). Many thanks for the help.