Matlab：子图的标题与上面的轴标签重叠

Question

我有 4x1 图，其中 1 个图占据了上半部分。我在一个相对 high-resolution 1600x1200 的显示器上查看它，所以 Matlab 应该没有问题。考虑到我有一个 4x2 的数字，这尤其奇怪，Matlabs 适合一切。

那么 4x1 图有什么问题，我该如何解决？为什么 Matlab (2016b) 不能为它做它能为 4x2 做的事？

identifier='unshielded';
bat_discharging=readtable('battery_discharging.txt','Format', '%u%f%f%f');

subplot(4,1,[1 2]);
yyaxis left;
plot(bat_discharging{:,1},bat_discharging{:,2});
ylabel('Voltage, V');
yyaxis right
plot(bat_discharging{:,1},bat_discharging{:,3});
hold on
plot(bat_discharging{:,1},bat_discharging{:,4});
ylabel('Current, A');
hold off
xlabel(bat_discharging.Properties.VariableNames{1});
legend('Voltage', 'Current with external reference',...
    'Current with internal refence', 'Location','east');
title( ['Discharging, ' identifier]);

subplot(4,1,3);
[ext_currentfit,ext_gof, ext_output] = fit(double(bat_discharging{:,1}),...
    bat_discharging{:,3}, 'smoothingspline');
plot(bat_discharging{10:end,1}, ext_output.residuals(10:end));
xlabel(bat_discharging.Properties.VariableNames{1});
ylabel('Current, A');
title(sprintf(...
    'Battery current measurement noise, external reference, %s, span=%.3e, %s=%e',...
    identifier,range(ext_output.residuals(10:end)),...
    '\sigma',std(ext_output.residuals(10:end))));

subplot(4,1,4);
[int_currentfit,ext_gof, int_output] = fit(double(bat_discharging{:,1}),...
    bat_discharging{:,4}, 'smoothingspline');
plot(bat_discharging{10:end,1}, int_output.residuals(10:end));
ylabel('Current, A');
xlabel(bat_discharging.Properties.VariableNames{1});
title(sprintf(...
    'Battery current measurement noise, internal reference, %s, span=%.3e, %s=%e',...
    identifier,range(int_output.residuals(10:end)),...
    '\sigma',std(int_output.residuals(10:end))));

前 20 个数据集来自 "battery_discharging.txt" 应该足以获取代码运行.

    Sample  Voltage, V  Current external ref    Current internal ref
1   3.327263594e+00 -8.607864380e-05    -8.599996567e-05
2   3.326871395e+00 -8.591771126e-05    -8.585631847e-05
3   3.326753676e+00 -8.580327034e-05    -8.570969105e-05
4   3.326707184e+00 -8.567452431e-05    -8.563339710e-05
5   3.326638043e+00 -8.560776711e-05    -8.552610874e-05
6   3.326614201e+00 -8.551001549e-05    -8.547961712e-05
7   3.326560557e+00 -8.546590805e-05    -8.539199829e-05
8   3.326546252e+00 -8.538603783e-05    -8.535683155e-05
9   3.326498866e+00 -8.535146713e-05    -8.528172970e-05
10  3.326489627e+00 -8.528113365e-05    -8.525252342e-05
11  3.326448202e+00 -8.525490761e-05    -8.518755436e-05
12  3.326441050e+00 -8.518815041e-05    -8.516192436e-05
13  3.326403201e+00 -8.516669273e-05    -8.509933949e-05
14  3.326398730e+00 -8.510708809e-05    -8.508086205e-05
15  3.326362669e+00 -8.508801460e-05    -8.502542973e-05
16  3.326360881e+00 -8.503198624e-05    -8.500695229e-05
17  3.326325417e+00 -8.501410484e-05    -8.495271206e-05
18  3.326324224e+00 -8.496403694e-05    -8.493661880e-05
19  3.326291144e+00 -8.494853973e-05    -8.488714695e-05
20  3.326291144e+00 -8.489966393e-05    -8.487284184e-05

MCVE

x = 1:100;
y = rand(100, 1);

subplot(3,1,[1 2]);
plot(x, y);
xlabel('label');

subplot(3,1,3);
plot(x, y);
title('TITLE');

Answer 1

我不知道是什么原因导致了这个问题，也无法重现，但我认为最简单的解决方案是获取第一个轴的句柄：

ax = subplot(4,1,[1 2]);

完成绘制后，将它们向上移动一点：

ax.Position(2) = ax.Position(2)*1.02; % This may be adjusted
% subplot(4,1,3); etc...

这里我占了 2%，但你可能需要多一点。同样，你可以把最后一个坐标轴往下一点：

ax = subplot(4,1,4);
% do all the plotting
ax.Position(2) = ax.Position(2)*0.98; % This may be adjusted

Matlab：子图的标题与上面的轴标签重叠

Matlab: the title of the subplot overlaps the axis label above

matlab

plot

subplot

matlab-figure

axis-labels