move a marker from one position to another in a curve plotted in a graph

using the ginput function i can mark a curve plotted in a graph at a specific position. however, sometimes i would like to move the position of the marker to another position in the curve. how can i do this ?

Answer 1

[Matt Fig]

Have you considered using the data cursor?

plot(1:10)
datacursormode on

Now click on the line then use the arrow keys.