Ylim is not working

I have tried to inlcude a common and fixed Y-axis and X-axis for all the figures but it is working. Can you please help.

figure

N_F =1; 
subplot(3,1,1); 
idx_1 = MaT_All(:,1) == Median_All(1) & MaT_All(:,2) ~= Median_All(2) & MaT_All(:,3) ~= Median_All(3) & MaT_All(:,4) ~= Median_All(4)...
      & MaT_All(:,5) ~= Median_All(5) & MaT_All(:,6) ~= Median_All(6) & MaT_All(:,7) ~= Median_All(7) & MaT_All(:,8) ~= Median_All(8);
Mat_1 = MaT_All(idx_1,:);

scatter(MaT_All(idx_1,18),MaT_All(idx_1,17)); hold on; 
title(sprintf('Impact of r* on Field %d',N_F))
xlabel('Risk ($B)')
ylabel('E(NPV) ($B)')
legend(sprintf('Medain Only of Field %d',N_F))
ylim([-50 50])

N_F =2; 
subplot(3,1,2); 
idx_2 = MaT_All(:,1) ~= Median_All(1) & MaT_All(:,2) == Median_All(2) & MaT_All(:,3) ~= Median_All(3) & MaT_All(:,4) ~= Median_All(4)...
      & MaT_All(:,5) ~= Median_All(5) & MaT_All(:,6) ~= Median_All(6) & MaT_All(:,7) ~= Median_All(7) & MaT_All(:,8) ~= Median_All(8);
Mat_2 = MaT_All(idx_2,:);

scatter(MaT_All(idx_2,18),MaT_All(idx_2,17)); hold on; 
title(sprintf('Impact of r* on Field %d',N_F))
xlabel('Risk ($B)')
ylabel('E(NPV) ($B)')
legend(sprintf('Medain Only of Field %d',N_F))
ylim([-50 50])

N_F =8; 
subplot(3,1,3); 
idx_8 = MaT_All(:,1) ~= Median_All(1) & MaT_All(:,2) ~= Median_All(2) & MaT_All(:,3) ~= Median_All(3) & MaT_All(:,4) ~= Median_All(4)...
      & MaT_All(:,5) ~= Median_All(5) & MaT_All(:,6) ~= Median_All(6) & MaT_All(:,7) ~= Median_All(7) & MaT_All(:,8) == Median_All(8);
Mat_8 = MaT_All(idx_8,:);

scatter(MaT_All(idx_8,18),MaT_All(idx_8,17)); hold on; 
title(sprintf('Impact of r* on Field %d',N_F))
xlabel('Risk ($B)')
ylabel('E(NPV) ($B)')
legend(sprintf('Medain Only of Field %d',N_F))
ylim([-50 50])

Answer 1

[Adam]

Use explicit axes handles for plotting instructions and instructions like hold, ylim, xlim. i.e.

hAxes(1) = subplot(3,1,1);
scatter( hAxes(1),... );
ylim( hAxes(1),... );
...
hAxes(2) = subplot(3,1,2);
...

You may also find

doc linkaxes

useful if you want your axes to all have the same limits. If you store your axes handles in an array as shown above then you can simply replace all the individual ylim instructions with

linkaxes( hAxes, 'y' )
ylim( hAxes(1), [-50 50] )

[Yaser Khojah]

Thanks Adam for your help.