How can I label my graphs as (a), (b), (c) etc in subplot matlab?

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I want to describe the graphs in figure caption by referencing them as (a), (b) (c) etc

采纳的回答

Image Analyst
Image Analyst 2018-12-13
Use subplot() and title().
% Plot (a) plot.
subplot(3, 1, 1);
plot(1:10, 'r-');
title('(a)', 'FontSize', 15);
% Plot (b) plot.
subplot(3, 1, 2);
plot(10*sin(0:.1:10), 'b-', 'LineWidth', 2);
grid on;
title('(b)', 'FontSize', 15);
% Plot (a) plot.
subplot(3, 1, 3);
plot(cos(1:10), 'k*', 'MarkerSize', 15, 'LineWidth', 2);
grid on;
title('(c)', 'FontSize', 15);
0000 Screenshot.png
Or you could use xlabel() if you want to put the letters under the x axis, or text() if you want to place them wherever you want.
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更多回答(4 个)

Sterling Baird
Sterling Baird 2020-10-21
编辑:Sterling Baird 2020-10-21
Personally, I've liked using:
nIDs = 4;
alphabet = ('a':'z').';
chars = num2cell(alphabet(1:nIDs));
chars = chars.';
charlbl = strcat('(',chars,')'); % {'(a)','(b)','(c)','(d)'}
text(0.025,0.95,charlbl{1},'Units','normalized','FontSize',12)
This works fine for me for tiled layouts, and does a decent job for scientific figures.
  4 个评论
Image Analyst
Image Analyst 2022-4-13
@Wiqas Ahmad Try using text() or put it into the title or axes labels using sprintf() and title() or xlabel() or ylabel().
Sanita Dhaubanjar
You can make the label generation shorter using:
charlbl = compose("(%s)",('a':'z').');

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madhan ravi
madhan ravi 2018-12-13
编辑:madhan ravi 2018-12-13
Use legend()
legend('(a)','(b)','(c)')
  1 个评论
Shikhar Saxena
Shikhar Saxena 2018-12-13
No, legend is different. I want to label each graph as a,b,c etc. Like see in figure below generated through subplot function matlab, I want to label three graphs as a, b and c. try.png

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Alex Ryabov
Alex Ryabov 2021-7-7
编辑:Alex Ryabov 2021-7-7
I hope this function will help
fg = figure(1);
clf
subplot(2, 2, 1)
subplot(2, 2, 2)
subplot(2, 1, 2)
legend
colorbar
AddLetters2Plots(fg, 'HShift', 0, 'VShift', 0, 'Direction', 'TopDown')

Dion Wilde
Dion Wilde 2023-5-17
编辑:Dion Wilde 2023-5-18
Personally i found my optimum with the following solution:
ax=gca;
% read out the position of the axis in the unit "characters"
set(ax,'Units','characters'); a=get(ax,'Position');
% this determines the type of the plot
if isequal(get(ax,'View'),[0 90]) % this is used for 2D plots
str_place=2;
else % this is used for 3D plots, in this case also all other plots
str_place=-2;
end
% this sets an 'a)' right at the top left of the axes
text(ax,0,a(end)+str_place,'a)','Units','characters')
I specifically used the units "characters" here, because it consistently sets the character above the axes indepently of the actual size of the axis. The latter is difficult if not impossible to do with "units", "normalized".

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