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及文章作者：slandarer
之前七夕节情人节各种花，相册，爱心啥的都快画够了，今年画个花瓣韦恩图？
花瓣上的数字是仅属于该类的样本数，而中心的数字是属于每一类的样本数
教程部分
0 数据准备
% 给组起名t1 t2 t3...t15
setName = compose('t%d', 1:15);
% 随机生成数据
Data = [rand(200, 15) > .1; rand(200, 15) > .85];
% 设置字体
numFont = {'FontSize', 14, 'FontName', 'Times New Roman'};
labFont = {'FontSize', 16, 'FontName', 'Times New Roman'};
其中Data数据是个0-1矩阵，矩阵每一行代表一个样本，如果第n列是1代表该样本属于第n类，是0则代表不属于。
1 配色
CList = lines(15);
% C = flowerPlotColor();
% CList = C.CList631;
这里直接取MATLAB自带的lines配色，当然我也准备了很多其他配色，可以复制下来用：
function C=flowerPlotColor
C.CList1877 = [
0.2431 0.3294 0.5882
0.5098 0.5647 0.7333
0 0.5569 0.8078
0.3490 0.7804 0.9216
0.0275 0.4431 0.5294
0.4157 0.6667 0.7176
0.0392 0.5647 0.5255
0.3294 0.7490 0.7176
0.5569 0.1255 0.2627
0.7373 0.4784 0.5608
0.8784 0.3765 0.4941
0.9255 0.6275 0.6980
0.9961 0.6275 0.5647
0.9961 0.8118 0.7804
0.7216 0.7373 0.7569
0.8824 0.8863 0.8980];
C.CList1514 = [
0.4078 0.5647 0.8157
0.9098 0.7843 0.6588
0.9725 0.8784 0.7216
0.9725 0.9725 0.9725
0.2196 0.3137 0.4392
0.5333 0.6588 0.9725
0 0 0
0.5961 0.5961 0.6902
0.3451 0.4706 0.5647
0.8471 0.8471 0.9725
0.7216 0.7216 0.8157
0.8157 0.6902 0.5647
0.7216 0.5961 0.4706
0.2510 0.4078 0.6275
0.7216 0.7843 0.9725];
C.CList1596 = [
0.2549 0.5490 0.9412
0.9882 0.7059 0.2549
0.8784 0.2510 0.0392
0.0196 0.3922 0.5725
0.7490 0.7490 0.7490
0.1020 0.2314 0.4118
1.0000 0.8902 0.5098
0.0706 0.6118 0.8667
0.7922 0.4196 0.2941
0 0.3608 0.8588
0.9529 0.8235 0.5333
0.3137 0.3882 0.5059
0.9451 0.7255 0.6588
0.8784 0.5137 0.0392
0.4706 0.5765 0.7451];
C.CList1470 = [
0.1882 0.4078 0.5961
0.2824 0.5020 0.6902
0.9098 0.8157 0.6275
0.7843 0.6902 0.5020
0.3765 0.5961 0.7843
0.1255 0.1882 0.2824
0 0 0
0.4078 0.3765 0.2824
0.5961 0.5333 0.3765
0.5647 0.7529 0.9098
0.2196 0.3137 0.4706
0.6902 0.7216 0.7529
0.9725 0.9725 0.9725
0.5020 0.5333 0.5961
0.9725 0.9098 0.7843];
C.CList1827 = [
1.0000 0.6118 0
0.9686 0.7412 0.3529
1.0000 0.8000 0.6000
1.0000 1.0000 0.2000
1.0000 1.0000 0.6118
0.8039 0.3882 0.3882
0.8000 0.6000 0.8000
1.0000 0.6196 0.3882
0.3922 0.4275 0.8000
0.6118 0.6118 1.0000
0.2000 0.6000 1.0000
0.6000 0.8000 1.0000
1.0000 1.0000 0.8000
0.6941 0.5843 0.4784
0.9294 0.5333 0.2980
0.9608 0.9294 0
0.8667 1.0000 1.0000];
C.CList1607 = [
0.8863 0.5686 0.5686
0.6000 0.8667 0.5725
0.5765 0.8471 0.7255
0.5804 0.7686 0.8275
0.5804 0.6039 0.8078
0.7020 0.5804 0.8000
0.8000 0.5882 0.6941
0.8000 0.6431 0.6000
0.8745 0.8980 0.5725
1.0000 0.6471 0.3765
0.4196 1.0000 0.3882
0.3961 1.0000 0.8000
0.3961 0.7686 1.0000
0.3961 0.4196 1.0000
0.6784 0.3961 1.0000
1.0000 0.3961 0.9569
1.0000 0.3961 0.5176
1.0000 0.3961 0.3961];
C.CList631 = [
0.1059 0.6392 0.7765
0.1725 0.7098 0.7529
0.1882 0.7373 0.6784
0.1294 0.6902 0.5294
0.2000 0.6510 0.3608
0.3412 0.6392 0.2157
0.6353 0.7137 0.1529
0.8353 0.7333 0.1294
0.9725 0.7137 0.1255
0.9725 0.5725 0.0902
0.9412 0.4039 0.0980
0.8784 0.2039 0.1490
0.9647 0.2863 0.4431
0.9882 0.4431 0.6196
0.9216 0.4510 0.7020
0.8078 0.4118 0.7451
0.6353 0.4275 0.7608
0.4706 0.4510 0.7529
0.3098 0.4863 0.7294];
end
2 数据处理及图窗生成
% 数据计算
cT = linspace(0, 2*pi, 200);
cX = cos(cT).*8 + 8;
cY = sin(cT).*3;
cXY = [cX;cY];
setNum = size(Data, 2);
rT = 2*pi./setNum;
rM = [cos(rT),-sin(rT); sin(rT),cos(rT)];
uniq = sum(Data.*(sum(Data,2) == 1),1);
core = sum(sum(Data,2) == setNum);
figure('Units', 'normalized', 'Position', [.1,.1,.5,.8]);
ax=gca;
ax.NextPlot = 'add';
ax.DataAspectRatio = [1,1,1];
ax.XColor = 'none';
ax.YColor = 'none';
3 绘制花
% 绘制椭圆花瓣
for i = 0:setNum-1
iXY = rM^i*cXY;
fill(iXY(1,:), iXY(2,:), CList(i+1,:), 'FaceAlpha', .4, 'EdgeColor', 'none');
end
% 绘制白色边缘线
if 1
for i = 0:setNum-1
iXY = rM^i*cXY;
plot(iXY(1,:), iXY(2,:), 'Color', 'w', 'LineWidth', 1.2);
end
end
fill(cos(cT).*2.3, sin(cT).*2.3, [1,1,1], 'EdgeColor', 'none')
4 绘制文本
% 绘制文本信息
for i = 1:setNum
tR = (i-1)*rT/pi*180;
if tR>=0 && tR<=180
tR = tR-90;
else
tR = tR+90;
end
text(cos((i-1)*rT).*13, sin((i-1)*rT).*13, num2str(uniq(i)),...
'HorizontalAlignment', 'center',...
'VerticalAlignment', 'middle',...
'Rotation', tR,...
numFont{:})
text(cos((i-1)*rT).*17, sin((i-1)*rT).*17, setName{i},...
'HorizontalAlignment', 'center',...
'VerticalAlignment', 'middle',...
'Rotation', tR,...
labFont{:})
end
text(0, 0, {'core';num2str(core)},...
'HorizontalAlignment', 'center',...
'VerticalAlignment', 'middle',...
labFont{:})
完整代码
% flowerPlotDemo
% 给组起名t1 t2 t3...t15
setName = compose('t%d', 1:15);
% 随机生成数据
Data = [rand(200, 15) > .1; rand(200, 15) > .85];
% 设置字体
numFont = {'FontSize', 14, 'FontName', 'Times New Roman'};
labFont = {'FontSize', 16, 'FontName', 'Times New Roman'};
% 设置配色
CList = lines(15);
% C = flowerPlotColor();
% CList = C.CList631;
% =========================================================
% 绘图部分代码
% ---------------------------------------------------------
% 数据计算
cT = linspace(0, 2*pi, 200);
cX = cos(cT).*8 + 8;
cY = sin(cT).*3;
cXY = [cX;cY];
setNum = size(Data, 2);
rT = 2*pi./setNum;
rM = [cos(rT),-sin(rT); sin(rT),cos(rT)];
uniq = sum(Data.*(sum(Data,2) == 1),1);
core = sum(sum(Data,2) == setNum);
figure('Units', 'normalized', 'Position', [.1,.1,.5,.8]);
ax=gca;
ax.NextPlot = 'add';
ax.DataAspectRatio = [1,1,1];
ax.XColor = 'none';
ax.YColor = 'none';
% 绘制椭圆花瓣
for i = 0:setNum-1
iXY = rM^i*cXY;
fill(iXY(1,:), iXY(2,:), CList(i+1,:), 'FaceAlpha', .4, 'EdgeColor', 'none');
end
% 绘制白色边缘线
if 1
for i = 0:setNum-1
iXY = rM^i*cXY;
plot(iXY(1,:), iXY(2,:), 'Color', 'w', 'LineWidth', 1.2);
end
end
fill(cos(cT).*2.3, sin(cT).*2.3, [1,1,1], 'EdgeColor', 'none')
% 绘制文本信息
for i = 1:setNum
tR = (i-1)*rT/pi*180;
if tR>=0 && tR<=180
tR = tR-90;
else
tR = tR+90;
end
text(cos((i-1)*rT).*13, sin((i-1)*rT).*13, num2str(uniq(i)),...
'HorizontalAlignment', 'center',...
'VerticalAlignment', 'middle',...
'Rotation', tR,...
numFont{:})
text(cos((i-1)*rT).*17, sin((i-1)*rT).*17, setName{i},...
'HorizontalAlignment', 'center',...
'VerticalAlignment', 'middle',...
'Rotation', tR,...
labFont{:})
end
text(0, 0, {'core';num2str(core)},...
'HorizontalAlignment', 'center',...
'VerticalAlignment', 'middle',...
labFont{:})
完
以上已经是本文全部内容，，若懒得一一获取代码，可以去以下gitee仓库获取全部代码：
https://gitee.com/slandarer/spdraw/
