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SH_IQ
Asked: 2024-12-12 20:49:01 +0800 CST

如何在 MATLAB 中突出显示两个条形图之间的差异？

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我正在从事一个 MATLAB 项目，其中有两组数据：

1-“无反射”：表示基线覆盖面积值。2-“有反射”：表示具有附加反射效果的覆盖面积值。

我将这两个数据集绘制为分组条形图，并希望突出显示反射造成的差异。具体来说，我需要在“无反射”条形图上方以不同颜色突出显示与差异（反射效果）相对应的每个条形图部分。

在此处输入图片描述

示例： 例如，如果：

  • 第一个条（QAM = 16）的“无反射”值为 120 平方米。
  • 同一酒吧的“含反射”值为 160 平方米。

我想要：

1- 绘制一个代表 120 平方米（“无反射”的基准值）的条形图。

2- 用红色突出显示蓝色条顶部的差异（160 - 120 = 40 平方米）（突出显示反射效果）。

我想将此应用到右侧图片上的所有条形图上。有什么可以帮忙的吗？

这是我的代码：

close all;
clear variables;
clc;

QAM = [16, 32, 64, 128, 256, 512, 1024];

%% m_CAP modulation

% Beamsteering without reflection
VEC_Beam_no_reflection_mCAP = [
    117.5491   75.1933   53.5396   38.3105   23.0815   13.5634    6.9007; % Theta = 10
    118.2629   76.1452   54.0155   39.0244   23.0815   13.5634    6.9007; % Theta = 30
    118.2629   76.3831   54.0155   39.5003   22.8435   13.5634    6.9007; % Theta = 45
    118.2629   76.6211   54.2534   39.5003   22.8435   13.5634    6.9007  % Theta = 60
];

% Beamsteering with reflection
VEC_Beam_reflection_mCAP = [
    121.3563   77.0970   54.7293   39.7383   22.8435   13.5634    6.9007; % Theta = 10
    141.1065   88.7567   61.6300   42.5937   24.2713   14.5152    7.8525; % Theta = 30
    153.7180   95.6573   67.8168   45.6871   26.6508   14.5152    8.8043; % Theta = 45
    160.3807  100.6544   69.7204   50.4462   28.7924   16.4188    8.8043  % Theta = 60
];

%% DCO-OFDM modulation

% Beamsteering without reflection
VEC_Beam_no_reflection_OFDM = [
    91.3742   59.7264   42.1178   28.7924   16.4188    8.8043    4.9970; % Theta = 10
    95.4194   58.2986   34.7412   25.9369   16.4188   10.7079    4.9970; % Theta = 30
    89.4706   59.4884   44.4973   24.7472   16.4188    8.8043    4.9970; % Theta = 45
    83.5217   69.4825   40.2142   28.7924   16.4188   10.7079    4.9970  % Theta = 60
];

% Beamsteering with reflection
VEC_Beam_reflection_OFDM = [
    94.7055   61.8679   42.1178   28.7924   16.4188    8.8043    4.9970; % Theta = 10
    113.9798   69.7204   42.1178   28.7924   16.4188   10.7079    4.9970; % Theta = 30
    115.6454   74.9554   55.6811   28.7924   16.4188    9.7561    4.9970; % Theta = 45
    114.4557   88.7567   50.6841   34.5033   21.1779   11.6597    4.9970  % Theta = 60
];

%% Combine Data for Bar Chart
angles = [10, 30, 45, 60];
data_no_reflection = [VEC_Beam_no_reflection_mCAP; VEC_Beam_no_reflection_OFDM];
data_with_reflection = [VEC_Beam_reflection_mCAP; VEC_Beam_reflection_OFDM];

% Generate gradient colors for m-CAP (blue) and DCO-OFDM (green)
mCAP_blue_gradient = [linspace(0.8, 0.1, 4)', linspace(0.9, 0.2, 4)', linspace(1.0, 0.3, 4)']; % Light to dark blue
DCO_green_gradient = [linspace(0.7, 0.1, 4)', linspace(0.9, 0.4, 4)', linspace(0.6, 0.2, 4)']; % Light to dark green

% Combine colors
custom_colors = [mCAP_blue_gradient; DCO_green_gradient];

% Plot for No Reflection
figure('Position', [100, 100, 800, 600]);
b1 = bar(data_no_reflection', 'grouped');
for k = 1:length(b1)
    b1(k).FaceColor = 'flat';
    b1(k).CData = repmat(custom_colors(k, :), size(b1(k).CData, 1), 1);
end
xticks(1:length(QAM));
xticklabels(string(QAM));
xlabel('QAM Order, M');
ylabel('Coverage Area (m²)');
title({'Coverage Area Without Reflection', 'm-CAP and DCO-OFDM'});
legend(["m-CAP \Phi_{1/2}=10°", "m-CAP \Phi_{1/2}=30°", "m-CAP \Phi_{1/2}=45°", "m-CAP \Phi_{1/2}=60°", ...
        "DCO-OFDM \Phi_{1/2}=10°", "DCO-OFDM \Phi_{1/2}=30°", "DCO-OFDM \Phi_{1/2}=45°", "DCO-OFDM \Phi_{1/2}=60°"], ...
       'Location', 'Best');
grid on;

% Plot for With Reflection
figure('Position', [100, 100, 800, 600]);
b2 = bar(data_with_reflection', 'grouped');
for k = 1:length(b2)
    b2(k).FaceColor = 'flat';
    b2(k).CData = repmat(custom_colors(k, :), size(b2(k).CData, 1), 1);
end
xticks(1:length(QAM));
xticklabels(string(QAM));
xlabel('QAM Order, M');
ylabel('Coverage Area (m²)');
title({'Coverage Area With Reflection', 'm-CAP and DCO-OFDM'});
legend(["m-CAP \Phi_{1/2}=10°", "m-CAP \Phi_{1/2}=30°", "m-CAP \Phi_{1/2}=45°", "m-CAP \Phi_{1/2}=60°", ...
        "DCO-OFDM \Phi_{1/2}=10°", "DCO-OFDM \Phi_{1/2}=30°", "DCO-OFDM \Phi_{1/2}=45°", "DCO-OFDM \Phi_{1/2}=60°"], ...
       'Location', 'Best');
grid on;
matlab

1 个回答

  1. Best Answer

    如果您没有创建分组条形图，则可以将它们制作成堆叠条形图，其中堆叠的顶部等于两者之间的差值。

    由于您使用的是分组图表，因此一个简单的方法是先绘制较高的条形图（整个条形图为红色），然后hold on绘制较短的条形图。

    您可以将红色条设置HandleVisibility为off，以便它们不会出现在图例中。

    从你的例子来看，它看起来像这样：

    f = figure('Position', [100, 100, 800, 600]);

% Set "HandleVisibility" to off so these bars don't appear in legend
b2 = bar(data_with_reflection', 'grouped','HandleVisibility','off');
for k = 1:length(b2)
    b2(k).FaceColor = 'flat';
    b2(k).CData = repmat([1,0,0], size(b2(k).CData, 1), 1); % [1,0,0] for red bars
end

% Plot for No Reflection
hold on; % To plot 2nd set of bars on top

b1 = bar(data_no_reflection', 'grouped');
for k = 1:length(b1)
    b1(k).FaceColor = 'flat';
    b1(k).CData = repmat(custom_colors(k, :), size(b1(k).CData, 1), 1);
end

grid on;
xticks(1:length(QAM));
xticklabels(string(QAM));
title({'Coverage Area With Reflection', 'm-CAP and DCO-OFDM'});
legend(["m-CAP \Phi_{1/2}=10°", "m-CAP \Phi_{1/2}=30°", "m-CAP \Phi_{1/2}=45°", "m-CAP \Phi_{1/2}=60°", ...
        "DCO-OFDM \Phi_{1/2}=10°", "DCO-OFDM \Phi_{1/2}=30°", "DCO-OFDM \Phi_{1/2}=45°", "DCO-OFDM \Phi_{1/2}=60°"], ...
       'Location', 'Best');

    输出：

    数字

    • 2

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