matlab中正方形图例
时间: 2024-09-03 16:04:27 浏览: 62
在MATLAB中创建一个正方形图例通常是在绘图函数(如`plot`, `scatter`, `bar`, 等)中设置`Legend`选项来实现的。如果你想要一个正方形图例,你可以使用`legend('Interpreter', 'none')`来关闭文本解释,并自定义图例框的样式。例如:
```matlab
% 创建数据
x = 0:0.1:10;
y1 = sin(x);
y2 = cos(x);
% 绘制线图并添加图例
h1 = plot(x, y1, 'r', 'LineWidth', 2); % 红色线条
h2 = plot(x, y2, 'b', 'LineWidth', 2); % 蓝色线条
% 设置图例为正方形
legend(h1, h2, {'红色正弦曲线', '蓝色余弦曲线'}, 'Location', 'best', 'Interpreter', 'none', 'BoxStyle', 'sqrbox');
```
在这个例子中,`'BoxStyle', 'sqrbox'`指定了图例框为正方形。你可以根据需要调整位置(`'Location'`)。如果你想在所有图例上都应用这个样式,可以在`set`函数中统一设置。
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