来自单元格的 Matlab 图例,用于使用 for 循环创建的绘图
Matlab legend from cell for plot created with for-loop
我想在 Matlab 中创建一个图例,它使用下面虚拟代码中名为标签的单元格。我已经阅读了该论坛中的手册和帖子,建议使用 legend(labels{:}) - 但它仍然只显示最后一个图例条目。 legend('show') 显示所有条目,但不具有标签中定义的正确名称。我做错了什么?
clc;
clear;
close all;
format long;
data = cell(4,2);
for number = 1:2
data{1,number} = [1 3 5];
data{2,number} = [4 2 9];
data{3,number} = [2 7 3];
data{4,number} = [7 4 2];
end
labels = cell(4,2);
for number = 1:2
labels{1,number} = {strcat(string(number), ': legend entry 1')};
labels{2,number} = {strcat(string(number), ': legend entry 2')};
labels{3,number} = {strcat(string(number), ': legend entry 3')};
labels{4,number} = {strcat(string(number), ': legend entry 4')};
end
x = 1:3;
figure;
hold on;
for i = 1:numel(data)
plot(x, data{i},'-o','LineWidth',1.1);
end
hold off;
legend(labels{:});
% legend('show');
xlim([0.5 3+0.5]);
ylim([0 10]);
set(gca, 'xTick', 1:3, 'yTick', 0:1:10 );
ytickformat('percentage');
xlabel('Scenarios');
只需这样做:
labels{1,number} = strcat(string(number), ': legend entry 1');
labels{2,number} = strcat(string(number), ': legend entry 2');
labels{3,number} = strcat(string(number), ': legend entry 3');
labels{4,number} = strcat(string(number), ': legend entry 4');
否则您将在单元格内创建单元格,并且它们必须是单元格内的字符串。
clc;
clear;
close all;
format long;
data = cell(4,2);
for number = 1:2
data{1,number} = [1 3 5];
data{2,number} = [4 2 9];
data{3,number} = [2 7 3];
data{4,number} = [7 4 2];
end
labels = cell(4,2);
for number = 1:2
labels{1,number} = strcat(string(number), ': legend entry 1');
labels{2,number} = strcat(string(number), ': legend entry 2');
labels{3,number} = strcat(string(number), ': legend entry 3');
labels{4,number} = strcat(string(number), ': legend entry 4');
end
x = 1:3;
figure;
hold on;
for i = 1:numel(data)
plot(x, data{i},'-o','LineWidth',1.1);
end
hold off;
legend(labels{:});
% legend('show');
xlim([0.5 3+0.5]);
ylim([0 10]);
set(gca, 'xTick', 1:3, 'yTick', 0:1:10 );
ytickformat('percentage');
xlabel('Scenarios');
现在是正确的。
Figure Output:
我想在 Matlab 中创建一个图例,它使用下面虚拟代码中名为标签的单元格。我已经阅读了该论坛中的手册和帖子,建议使用 legend(labels{:}) - 但它仍然只显示最后一个图例条目。 legend('show') 显示所有条目,但不具有标签中定义的正确名称。我做错了什么?
clc;
clear;
close all;
format long;
data = cell(4,2);
for number = 1:2
data{1,number} = [1 3 5];
data{2,number} = [4 2 9];
data{3,number} = [2 7 3];
data{4,number} = [7 4 2];
end
labels = cell(4,2);
for number = 1:2
labels{1,number} = {strcat(string(number), ': legend entry 1')};
labels{2,number} = {strcat(string(number), ': legend entry 2')};
labels{3,number} = {strcat(string(number), ': legend entry 3')};
labels{4,number} = {strcat(string(number), ': legend entry 4')};
end
x = 1:3;
figure;
hold on;
for i = 1:numel(data)
plot(x, data{i},'-o','LineWidth',1.1);
end
hold off;
legend(labels{:});
% legend('show');
xlim([0.5 3+0.5]);
ylim([0 10]);
set(gca, 'xTick', 1:3, 'yTick', 0:1:10 );
ytickformat('percentage');
xlabel('Scenarios');
只需这样做:
labels{1,number} = strcat(string(number), ': legend entry 1');
labels{2,number} = strcat(string(number), ': legend entry 2');
labels{3,number} = strcat(string(number), ': legend entry 3');
labels{4,number} = strcat(string(number), ': legend entry 4');
否则您将在单元格内创建单元格,并且它们必须是单元格内的字符串。
clc;
clear;
close all;
format long;
data = cell(4,2);
for number = 1:2
data{1,number} = [1 3 5];
data{2,number} = [4 2 9];
data{3,number} = [2 7 3];
data{4,number} = [7 4 2];
end
labels = cell(4,2);
for number = 1:2
labels{1,number} = strcat(string(number), ': legend entry 1');
labels{2,number} = strcat(string(number), ': legend entry 2');
labels{3,number} = strcat(string(number), ': legend entry 3');
labels{4,number} = strcat(string(number), ': legend entry 4');
end
x = 1:3;
figure;
hold on;
for i = 1:numel(data)
plot(x, data{i},'-o','LineWidth',1.1);
end
hold off;
legend(labels{:});
% legend('show');
xlim([0.5 3+0.5]);
ylim([0 10]);
set(gca, 'xTick', 1:3, 'yTick', 0:1:10 );
ytickformat('percentage');
xlabel('Scenarios');
现在是正确的。
Figure Output: