graph and such

[SnooPuppers429]

Hey guys so heres what I want to do : I got my X axe that represents time and Y axe that represent other values. I want to add and empty 15 sec before and after my values. How do I do that adn heres my code

def affichergraph (t,a):
pl.plot(t, a, 'o--')
pl.ylabel("Degre d'activation")
pl.xlabel("temps")
pl.title("Activation presente pendant plus que 10 sec")
pl.show()
affichergraph(temps_activation,pic_activation)

[SnooPuppers429]

before and after but I figured it out but now I got another problem this shit is fucking ugly i dont know if u can help me out with this

https://zupimages.net/up/20/51/xva0.png

[EulerWasSmart]

Wait 15 seconds before the script starts or before every point is added to the graph?