In MATLAB, is there a way to set the GRID at a spacing different from the ticks on the axes?

In MATLAB, is there a way to set the GRID at a spacing different from the ticks on the axes?

Answer 1

[MathWorks Support Team]

Currently the ticks and grid line spacing are associated and so the only way to change grid spacing is to change the tick spacing. Here are some examples:

figure

plot(1:100)

set(gca,'xtick',[0:13:100])

set(gca,'ytick',linspace(0,100,13))

% The following code changes the minor grid 

% spacing by adjusting the tick spacing:

figure

plot(1:100);

grid on 

grid minor

set(gca,'xtick',[0:50:100])

set(gca,'ytick',[0:50:100])

Answer 2

[Udo Ruprecht]

I have another idea

x=[20:0.1:80];
y=sin(x);
plot(x,y,'r','Linewidth',2)
ylim([0 4]);
xlim([0 100]);

% gridlines ---------------------------
hold on
g_y=[0:0.1:4]; % user defined grid Y [start:spaces:end]
g_x=[0:2:100]; % user defined grid X [start:spaces:end]
for i=1:length(g_x)
   plot([g_x(i) g_x(i)],[g_y(1) g_y(end)],'k:') %y grid lines
   hold on    
end
for i=1:length(g_y)
   plot([g_x(1) g_x(end)],[g_y(i) g_y(i)],'k:') %x grid lines
   hold on    
end
print(1,'-dpng','-r300','K1') %save plot as png (looks better)

[Hugh]

I voted for this answer because I also tend to build my own grid from lines. I use it to get the grid on top of an "area" plot style and to emphasize the baseline (typically zero value) with a thicker line.