plot and left axis off

Question

Babu Sankhi 2021-6-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/856225-plot-and-left-axis-off

编辑： Adam Danz 2021-6-20

When I plot it comes with both axes in the box. How can I plot by removing right axis (or vertical line) of Box? can you please help me?

x=(1:1:10);
y= (1:2:20);
figure (1);
plot (x,y,'o-');

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Scott MacKenzie 2021-6-14

编辑：Scott MacKenzie 2021-6-14

在 MATLAB Online 中打开

x = (1:1:10);
y = (1:2:20);
figure (1);
plot (x,y,'o-');
ax = gca;
ax.Box = 'off';

I don't think it's possible to remove just the right box border.

One thing you can do is move the border away from the plot by setting XLim. If your goal is just to create space for annotations to add to the plot, this might work:

x = (1:1:10);
y = (1:2:20);
figure (1);
plot (x,y,'o-');
ax = gca;
ax.XLim = [1 15];

Adam Danz 2021-6-14

Babu Sankhi's answer moved here as a comment.

yes you are right I want to add another plot by removing the right boarder. Can please give me the more idea about it how can get the plot like this as attched below? thank you

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Answer 1

Adam Danz 2021-6-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/856225-plot-and-left-axis-off#answer_724795

编辑：Adam Danz 2021-6-16

在 MATLAB Online 中打开

Turn off right-y-axis

This solution is similar to another answer provided a few days ago. It uses yyaxis to add a second, independent y-axis on the right and then turns the color off for that axis.

x=(1:1:10);

y= (1:2:20);

figure (1);

plot (x,y,'o-');

yyaxis right

ax = gca();

ax.YAxis(2).Color = 'none';

yyaxis left % return focus to 'main' axis.

Join 2 axes, control the center border line

Update following an example added by OP

This version joins 2 axes, turns off the y-axes in the center of the two axes, formats the left-y-axis of the right-axes as a dashed line, and then links the two sets of y-axes so they always have the same y-limit.

The juxtaposition of the axes uses TiledLayout with zero-tile-spacing which requires Matlab r2021a (see Community Highlight). For versions of Matlab prior to R2021a, create the two axes using the axes command and set their position properties (see version-2 below).

x = 0:0.1:10;

y = gaussmf(x,[2 5]);

figure()

tiledlayout(1,2,'TileSpacing','none'); % Requires Matlab r2021a or later

ax1 = nexttile();

plot(ax1, x,y)

yyaxis(ax1,'right')

ax1.YAxis(2).Color = 'none';

yyaxis(ax1,'left') % return focus to 'main' axis.

xlabel('Left Axis')

ax2 = nexttile();

plot(ax2, x,y)

yyaxis(ax2,'right')

ax2.YAxis(2).Color = ax1.YAxis(1).Color;

ax2.YAxis(2).TickLabels = []; % Turn off right tick labels

yyaxis(ax2,'left') % return focus to 'main' axis.

ax2.YAxis(1).TickValues = [];

ax2.YAxis(1).Axle.LineStyle = 'dashed';

linkaxes([ax1,ax2],'y') % link both sets of y-axis limits

xlabel('Right Axis')

Version-2 using custom axes instead of TiledLayout

x = 0:0.1:10;
y = gaussmf(x,[2 5]);
figure()
margins = [.13 .11 .25]; % [left&right, bottom, top], normalized units
ax1 = axes('Units','Normalize','Position',[margins(1:2),.5-margins(1),1-margins(3)]);
plot(ax1, x,y)
yyaxis(ax1,'right')
ax1.YAxis(2).Color = 'none';
yyaxis(ax1,'left') % return focus to 'main' axis.
xlabel('Left Axis')
ax2 = axes('Units','Normalize','Position',[.5,margins(2),.5-margins(1),1-margins(3)]);
plot(ax2, x,y)
yyaxis(ax2,'right')
ax2.YAxis(2).Color = ax1.YAxis(1).Color; 
ax2.YAxis(2).TickLabels = []; % Turn off right tick labels
yyaxis(ax2,'left') % return focus to 'main' axis.
ax2.YAxis(1).TickValues = [];
ax2.YAxis(1).Axle.LineStyle = 'dashed';
linkaxes([ax1,ax2],'y') % link both sets of y-axis limits
xlabel('Right Axis')

Additional recommendations

Set the x-ticks to avoid the overlap at the x-limits.
Turn the grid on for both pairs of axes (yyaxis left)

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Adam Danz 2021-6-14

编辑：Adam Danz 2021-6-15

> your idea about the tielspacing does not work for me

From my answer, "For versions of Matlab prior to R2021a, create the two axes using the axes command and set their position properties."

For example, axes('Units','Normalize','Position',[----]). You just need to set the positions of the two axes so they are next to each other. The positions are 1x4 vectors defining

Distance from the left of the figure (normalized coordinates)
Distance from the bottom of the figure
Width
Height

> I want to make left axis off, it does not work

Actually your question was "How can I plot by removing right axis? " but my answer shows how to turn off both the right and left axes. You haven't followed the example correctly. Try to copy the example as close as possible including the use of axis handles and the order that you're accessing the left and right y-axes. I don't know how else to show you without writing the exact example I already have in my answer. You applied it incorrectly so go line-by-line comparing your version with mine and try to think about what each line is doing.

Babu Sankhi 2021-6-16

在 MATLAB Online 中打开

Thank yo But it didnt help as I am using 2019a version of martlab. For example I tries this one. It gave me blank!!! Can you make left axis off for the following example. I am so sorry

x1=(1:1:10);
y1= (1:2:20);
x2=[1,2,3,4,5];
y2=[0.1,3,6,7,2];
figure (1);
ax1 = axes('Position',[100 100 600 500]);
h1=plot (ax1,x1,y1,'r-'); hold on;
h2=plot (ax1,x2,y2,'k-'); hold off
set(h1 ,'LineWidth',2.5);
set(h2 ,'LineWidth',2.5);
yyaxis(ax1,'right')
ax1.YAxis(2).Color = 'none';
yyaxis(ax1,'left') % return focus to 'main' axis.
xlabel('Left Axis')
set(gca,'FontSize',18)
set(gcf,'Position',[100 100 600 500])

Adam Danz 2021-6-16

编辑：Adam Danz 2021-6-20

The reason you have a blank figure is because your axes size is 600x500 but axis units are normalized by default so the largest size is 1x1.

I'll update my answer with a demo using custom axes.

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plot and left axis off

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plot and left axis off

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