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matlab 绘制极坐标柱形图
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| 在某个点需要表示多维数据时，简单的柱形图很难看，这个时候南丁格尔玫瑰图作用就体现出来了！ | |
| 南丁格尔就是那个伟大的护士，她在做报表时发明的这种图，所以后人以她的名字命名。简单来说我们可以用极坐标下的柱状图来理解。 | |
| 实现是用polarhistogram函数实现的，本来包含了统计，虽然用在这里有点大材小用，但是没想到其他方法。 | |
| 提供了两个参数第一个是一维的纵数组，第二个是是否去坐标，0是去坐标，1是保留坐标，默认为1. | |
| ```matlab | |
| function d_nrose(e,bac) | |
| if nargin<2 | |
| bac=1; | |
| end | |
| [N,~]=size(e); | |
| c=rand(1,N); | |
| b=rand(1,N); | |
| a=rand(1,N); | |
| %配色随机生成，不满意再来一次 | |
| for i=1:N | |
| ra= 0:2*pi/N:2*pi; | |
| ee=zeros(1,N); | |
| ee(i)=e(i); | |
| %绘制柱状图的一个柱子 | |
| polarhistogram('BinEdges',ra,'BinCounts',ee,'FaceColor',[c(i) a(i) b(i)],'FaceAlpha',1,'Edgecolor','none'); | |
| hold on; | |
| end | |
| %是否关闭背景 | |
| if bac==0 | |
| hold off; | |
| ax=gca; | |
| ax.Visible='off'; | |
| end | |
| end | |
| ``` | |
| 利用随机数来生成的图片 | |
| ```matlab | |
| e=rand(10,1); | |
| d_nrose(e); | |
| ``` | |
|  |
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