only reason as to why i kept my movember luiz gustavo <| sep |> All of those lines return a handle that you can save for later use . If you want to change the line color , you need to save the line object , not the subplot . # returns a list of line handles linehandle plt . plotx 1 , y 1 , ' yo ' . linehandle . setcolor ' r ' plt . subplot 2 , 1 , 1 returns any subplot at any time , it ' s not just for setting your environment , so you can also extract this without saving the handle yourself plt . subplot 2 , 1 , 1 . lines . setcolor ' r '<| sep |> Filter in PS <| sep |> At the time of the convention , the South was growing more quickly than the North , and Southern states had the most extensive Western claims . South Carolina , North Carolina , and Georgia were small in the 1780 s , but they expected growth , and thus favored proportional representation .