利用Matlab绘制优美的k线图

本期又是一个花里胡哨的数据可视化，前两天刷到了耐克的视觉设计师gladys orteza绘制的k线图作品，把沉闷的股票图变成了精彩的风景，但是那些大部分是真的完全看不清，我这里挑选了几个能看清的k线图风格将其用matlab进行了实现。

效果

代码

代码中使用的数据

simulatedstock.mat

是matlab自带的示例数据，因此不需要下载，不过要绘制k线图，仍需安装financial toolbox工具箱。

效果一 极光

% @author : slandarer
% gzh  : slandarer随笔

load simulatedstock.mat;
data=tmw(end-200:end-50,:);
chdl=candle(data,'b');
title('candlestick chart for tmw')


% 坐标区域基础修饰 =========================================================
fig=gcf;
set(fig,'units','normalized','position',[.1,.1,.7,.6])
ax=gca;hold on;axis tight
ylim=ax.ylim;
ax.ylim=ax.ylim+[-1.5,1].*diff(ylim);
ylim=ax.ylim;
xlim=ax.xlim;
ax.plotboxaspectratio=[2,1,1];
ax.color=[0,0,0];
maxy=ylim(1)+diff(ylim)*1.5/3.5;
miny=ylim(1)+diff(ylim)/4.5;

% 绘制背景 =================================================================
matsize=[300,300];
colorlist=[1,1,2;16,20,49;33,42,101;37,64,119;24,99,104;24,99,104;12,148,86;1,1,2;1,1,2]./255;
ylist=((0:(matsize(2)-1))./(matsize(2)-1))';
xlist=ones(1,matsize(1));
% 线性插值
colormat(:,:,1)=interp1(linspace(0,1,size(colorlist,1)),colorlist(:,1),ylist)*xlist;
colormat(:,:,2)=interp1(linspace(0,1,size(colorlist,1)),colorlist(:,2),ylist)*xlist;
colormat(:,:,3)=interp1(linspace(0,1,size(colorlist,1)),colorlist(:,3),ylist)*xlist;
[xmesh,ymesh]=meshgrid(linspace(xlim(1),xlim(2),300),linspace(ylim(2),ylim(1),300));
surf(xmesh,ymesh,zeros(size(xmesh)),colormat,'edgecolor','none');

matsize=[300,300];
colorlist=[26,110,106;26,110,106;35,72,118;33,40,95;16,22,56;1,1,1;1,1,1]./255;
ylist=((0:(matsize(2)-1))./(matsize(2)-1))';
xlist=ones(1,matsize(1));
% 线性插值
colormat(:,:,1)=interp1(linspace(0,1,size(colorlist,1)),colorlist(:,1),ylist)*xlist;
colormat(:,:,2)=interp1(linspace(0,1,size(colorlist,1)),colorlist(:,2),ylist)*xlist;
colormat(:,:,3)=interp1(linspace(0,1,size(colorlist,1)),colorlist(:,3),ylist)*xlist;
[xmesh,ymesh]=meshgrid(linspace(xlim(1),xlim(2),300),linspace(miny+(maxy-miny)/10,ylim(1),300));
surf(xmesh,ymesh,zeros(size(xmesh)),colormat,'edgecolor','none','facealpha',.5);

% 绘制星星 =================================================================
xs=diff(xlim).*rand([20,1])+xlim(1);
ys=(ylim(2)-maxy).*rand([20,1])+maxy;
scatter(xs,ys,3,'filled','cdata',[.8,.8,.8]);
xs=diff(xlim).*rand([20,1])+xlim(1);
ys=(ylim(2)-maxy).*rand([20,1])+maxy;
scatter(xs,ys,5,'filled','cdata',[.6,.6,.6]);

% 修改蜡烛图配色 ===========================================================
rcolor=[242,218,128]./255;
gcolor=[9,28,48]./255; 

% 获取竖直线数据
linehdl=chdl(1);
linedatax=reshape(linehdl.xdata,3,[]);
linedatay=reshape(linehdl.ydata,3,[]);
fill([linedatax(1,1),linedatax(1,:),linedatax(1,end)],...
    [miny,linedatay(1,:),miny],[10,28,48]./270);

for i=2:length(chdl)
    if chdl(i).facecolor(1)==1
        plot(linedatax(:,i-1),linedatay(:,i-1),'color',rcolor)
        fill(chdl(i).xdata,chdl(i).ydata,rcolor,'edgecolor',rcolor)
    else
        plot(linedatax(:,i-1),linedatay(:,i-1),'color',gcolor)
        fill(chdl(i).xdata,chdl(i).ydata,gcolor,'edgecolor',gcolor)
    end
end 
delete(linehdl);

% 绘制柱状图 ===============================================================
ydata=data.close-data.open;
absydata=abs(ydata);
absydata1=absydata./(max(absydata)-min(absydata)).*(maxy-miny)+miny;
absydata2=-absydata./(max(absydata)-min(absydata)).*(maxy-miny)+miny;
fill([linedatax(1,1),linedatax(1,:),linedatax(1,end)],...
    [ylim(1)+diff(ylim)/4.5,absydata1(:).',ylim(1)+diff(ylim)/4.5],[.01,.01,.01]);
disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114]))
bar(data.time(ydata>0),absydata1(ydata>0),'basevalue',miny,'edgecolor','none','facecolor',[29,170,112]./255);
bar(data.time(ydata<0),absydata1(ydata<0),'basevalue',miny,'edgecolor','none','facecolor',[23,105,103]./255);
bar(data.time(ydata>0),absydata2(ydata>0),'basevalue',miny,'edgecolor','none','facecolor',[29,170,112]./255,'facealpha',.6);
bar(data.time(ydata<0),absydata2(ydata<0),'basevalue',miny,'edgecolor','none','facecolor',[23,105,103]./255,'facealpha',.6);
xq=linspace(xlim(1),xlim(2),15);
yq=interp1(linedatax(1,:),absydata1,xq,'spline');
scatter(xq,yq,15,'filled','cdata',[128,169,90]./255)

效果二 暖调

% @author : slandarer
% gzh  : slandarer随笔

load simulatedstock.mat;
data=tmw(end-200:end-50,:);
chdl=candle(data,'b');
title('candlestick chart for tmw')


% 坐标区域基础修饰 =========================================================
fig=gcf;
set(fig,'units','normalized','position',[.1,.1,.7,.6])
ax=gca;hold on;axis tight;grid off
ylim=ax.ylim;
ax.ylim=ax.ylim+[-3,1].*diff(ylim);
ylim=ax.ylim;
xlim=ax.xlim;
ax.plotboxaspectratio=[2,1,1];
ax.color=[249,222,203]./255;
ax.ticklength=[0,0];
maxy=ylim(1)+diff(ylim)*3/5;
miny=ylim(1)+diff(ylim)*2/5;



% 修改蜡烛图配色 ===========================================================
rcolor=[133,168,142]./255;
gcolor=[9,28,48]./255; 

% 获取竖直线数据
linehdl=chdl(1);
linedatax=reshape(linehdl.xdata,3,[]);
ax.xlim=[linedatax(1,1),linedatax(1,end)];
linedatay=reshape(linehdl.ydata,3,[]);
scatter(xlim(1)+diff(xlim)/6,ylim(2)-diff(ylim)/8,500,'filled','cdata',[254,247,241]./255)
fill([linedatax(1,1)-1,linedatax(1,1)-1,linedatax(1,:),linedatax(1,end)+1,linedatax(1,end)+1],...
    [miny,linedatay(1,1),linedatay(1,:),linedatay(1,end),miny],[173,198,169]./270,'edgecolor','none');

for i=2:length(chdl)
    if chdl(i).facecolor(1)==1
        plot(linedatax(:,i-1),linedatay(:,i-1),'color',rcolor)
        fill(chdl(i).xdata,chdl(i).ydata,rcolor,'edgecolor',rcolor)
    else
        plot(linedatax(:,i-1),linedatay(:,i-1),'color',gcolor)
        fill(chdl(i).xdata,chdl(i).ydata,gcolor,'edgecolor',gcolor)
    end
end 
delete(linehdl);
fill([xlim(1)-1,xlim(2)+1,xlim(2)+1,xlim(1)-1],[ylim(1),ylim(1),miny,miny],[134,168,152]./255,'edgecolor','none')


% 绘制柱状图 ===============================================================
ydata=data.close-data.open;
absydata=abs(ydata);
absydata1=absydata./(max(absydata)-min(absydata)).*(maxy-miny)+miny;
absydata2=-absydata./(max(absydata)-min(absydata)).*(maxy-miny)+miny;
disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114]))
bar(data.time(ydata>0),absydata1(ydata>0),'basevalue',miny,'edgecolor','none','facecolor',[140,141,127]./255,'barwidth',1);
bar(data.time(ydata<0),absydata1(ydata<0),'basevalue',miny,'edgecolor','none','facecolor',[76,79,60]./255,'barwidth',1);


% 绘制下方山脉 =============================================================
layerbepos=linspace(miny,ylim(1),6)';layerbepos([1,end])=[];
layercolor=[107,144,136;97,103,103;57,82,86;14,23,22]./255;
disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114]))
excursion=diff(ylim)/30;
interval=diff(ylim)/50;

piecenum=30;
layerpos=zeros(size(layerbepos,1),piecenum);
layerpos(:,1)=layerbepos(:,1);
layerpos=[ones(1,piecenum).*miny;layerpos];

minx=linedatax(1,1)-1;
maxx=linedatax(1,end)+1;

for i=2:size(layerbepos,1)+1
    k=2;
    for j=1:piecenum-1
        temprandi=excursion*2*rand(1)-excursion;
        ypos=temprandi+layerpos(i,k-1);
        if i>1&&ypos>=layerpos(i-1,k)-diff(ylim)/100
            ypos=layerpos(i-1,k)-interval;
        end
        ypos(ypos<ylim(1))=ylim(1);
        layerpos(i,k)=ypos;
        k=k+1;
    end   
end
for i=2:size(layerbepos,1)+1
    xdata=linspace(minx,maxx,piecenum);
    ydata=layerpos(i,:);
    yq=interp1(xdata,ydata,linspace(minx,maxx,200),'spline');
    xq=[minx,linspace(minx,maxx,200),maxx];
    yq=[ylim(1),yq,ylim(1)];
    fill(xq,yq,layercolor(i-1,:),'edgecolor','none')
end

效果三 黑白

% @author : slandarer
% gzh  : slandarer随笔

load simulatedstock.mat;
data=tmw(end-200:end-50,:);
chdl=candle(data,'b');
title('candlestick chart for tmw')


% 坐标区域基础修饰 =========================================================
fig=gcf;
set(fig,'units','normalized','position',[.1,.1,.6,.8])
ax=gca;hold on;axis tight;grid off
ylim=ax.ylim;
ax.ylim=ax.ylim+[-3,6].*diff(ylim);
ylim=ax.ylim;
xlim=ax.xlim;
ax.plotboxaspectratio=[1,1,1];
ax.color=[0,0,0]./255;
ax.ticklength=[0,0];
maxy=ylim(1)+diff(ylim)*2.5/10;
miny=ylim(1)+diff(ylim)*1.5/10;

% 绘制星星 =================================================================
xs=diff(xlim).*rand([50,1])+xlim(1);
ys=(ylim(2)-maxy).*rand([50,1])+maxy;
scatter(xs,ys,3,'filled','cdata',[.9,.9,.9]);
xs=diff(xlim).*rand([50,1])+xlim(1);
ys=(ylim(2)-maxy).*rand([50,1])+maxy;
scatter(xs,ys,5,'filled','cdata',[.7,.7,.7]);

% 修改蜡烛图配色 ===========================================================
rcolor=[255,255,255]./255;
gcolor=[9,28,48]./255; 
% 获取竖直线数据
linehdl=chdl(1);
linedatax=reshape(linehdl.xdata,3,[]);
ax.xlim=[linedatax(1,1),linedatax(1,end)];
linedatay=reshape(linehdl.ydata,3,[]);
scatter(xlim(1)+diff(xlim)/6,ylim(2)-diff(ylim)/8,500,'filled','cdata',[254,247,241]./255)
fill([xlim(1)-3,xlim(2)+3,xlim(2)+3,xlim(1)-3],[ylim(1),ylim(1),miny,miny],[255,255,255]./255,'edgecolor','none')
fill([linedatax(1,1)-3,linedatax(1,1)-3,linedatax(1,:),linedatax(1,end)+3,linedatax(1,end)+3],...
    [miny,linedatay(1,1),linedatay(1,:),linedatay(1,end),miny],[255,255,255]./270);

for i=2:length(chdl)
    if chdl(i).facecolor(1)==1
        plot(linedatax(:,i-1),linedatay(:,i-1),'color',rcolor)
        fill(chdl(i).xdata,chdl(i).ydata,rcolor,'edgecolor',rcolor)
    else
        plot(linedatax(:,i-1),linedatay(:,i-1),'color',gcolor)
        fill(chdl(i).xdata,chdl(i).ydata,gcolor,'edgecolor',gcolor)
    end
end 
delete(linehdl);

% 绘制柱状图 ===============================================================
ydata=data.close-data.open;
absydata=abs(ydata);
absydata1=absydata./(max(absydata)-min(absydata)).*(maxy-miny)+miny;
absydata2=-absydata./(max(absydata)-min(absydata)).*(maxy-miny)+miny;
disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114]))
bar(data.time(ydata>0),absydata1(ydata>0),'basevalue',miny,'edgecolor','none','facecolor',[10,10,10]./255,'barwidth',1);
bar(data.time(ydata<0),absydata1(ydata<0),'basevalue',miny,'edgecolor','none','facecolor',[76,79,60]./255,'barwidth',1);


% 绘制下方山脉 =============================================================
layerbepos=linspace(miny,ylim(1),4)';layerbepos([1,end])=[];
layercolor=[255,255,255;10,10,10]./255;
disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114]))
excursion=diff(ylim)/40;
interval=diff(ylim)/50;

piecenum=30;
layerpos=zeros(size(layerbepos,1),piecenum);
layerpos(:,1)=layerbepos(:,1);
layerpos=[ones(1,piecenum).*miny;layerpos];

minx=linedatax(1,1)-1;
maxx=linedatax(1,end)+1;

for i=2:size(layerbepos,1)+1
    k=2;
    for j=1:piecenum-1
        temprandi=excursion*2*rand(1)-excursion;
        ypos=temprandi+layerpos(i,k-1);
        if i>1&&ypos>=layerpos(i-1,k)-diff(ylim)/100
            ypos=layerpos(i-1,k)-interval;
        end
        ypos(ypos<ylim(1))=ylim(1);
        layerpos(i,k)=ypos;
        k=k+1;
    end   
end
for i=2:size(layerbepos,1)+1
    xdata=linspace(minx,maxx,piecenum);
    ydata=layerpos(i,:);
    yq=interp1(xdata,ydata,linspace(minx,maxx,200),'spline');
    xq=[minx,linspace(minx,maxx,200),maxx];
    yq=[ylim(1),yq,ylim(1)];
    fill(xq,yq,layercolor(i-1,:),'edgecolor',[.4,.4,.4],'linewidth',.8)
end

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