How to change grid dot-lines looks better?

How to change the line style of the grid? I've changed the GridAlpha attribute but it doesn't looks like other scientific papers. What are the attributes of the Grid?

Answer 1

[Asad (Mehrzad) Khoddam]

Try this code ax = gca; ax.GridLineStyle = '-'

[Micro Torrent]

Thank you for your answer. What I need is dot lines with bigger space intervals. I've tried to change all these parameters but no success.

ax = gca;
ax.GridLineStyle = ':';
ax.GridAlpha = 0.7;
ax.FontSize = 10;
ax.LineWidth = 0.8;

Answer 2

[Fernando Villarreal]

t=datos(:,1);

Unrecognized function or variable 'datos'.

datos=[45 23 135 54 86 96 75 12 36 15 10 9 7];
y=datos(:,2);
plot(t,y,':');grid
val1=size(y)-10
val2=size(y)
ssData=y(val1:1:val2)
Deltay=mean(ssData)
porcTiempo1=DeltaY*0.283
porcTiempo2=DeltaY*0.632