what is the parameter to be change to 2 or 3 line only in single graph?

Thank you for valuable answer. I have one more doubt. That is " If it is possible for 2 or 3 or 4 line plotted in single graph?" or What are the variables to be change in 2 or 3 or 4 lines

Answer 1

[nl2605]

Use 'hold on' or you can also use the plot command as plot(x1,y1,x2,y2,...)