Plotting 2d problèmes

Hi guys , i have a problem i have a cell that i imported from a file and i want to plot it this is my prgrm: x=( 'matlab cell.mat') Y = 1:1:5000 (i dont have to y so i want to make the axe ) Plot(x,y) it says that there is a problem with plot ? Plese can anyone help me

[DGM]

Just post the code you're using and attach the .mat file if you can share it. That way we know how the data is arranged and what class it's using.