function matrixplot(data,varargin)
% 根据实值矩阵绘制色块图,用丰富的颜色和形状形象的展示矩阵元素值的大小。
%
% matrixplot(data) 绘制矩阵色块图,data为实值矩阵,每一个元素对应一个色块,色
% 块颜色由元素值大小决定。
%
% matrixplot(data, 'PARAM1',val1, 'PARAM2',val2, ...)
% 用成对出现的参数名/参数值控制色块的各项属性。可用的参数名/参数值如下:
% 'FigShape' --- 设定色块的形状,其参数值为:
% 'Square' --- 方形(默认)
% 'Circle' --- 圆形
% 'Ellipse' --- 椭圆形
% 'Hexagon' --- 六边形
% 'Dial' --- 表盘形
%
% 'FigSize' --- 设定色块的大小,其参数值为:
% 'Full' --- 最大色块(默认)
% 'Auto' --- 根据矩阵元素值自动确定色块大小
%
% 'FigStyle' --- 设定矩阵图样式,其参数值为:
% 'Auto' --- 矩形矩阵图(默认)
% 'Tril' --- 下三角矩阵图
% 'Triu' --- 上三角矩阵图
%
% 'FillStyle' --- 设定色块填充样式,其参数值为:
% 'Fill' --- 填充色块内部(默认)
% 'NoFill' --- 不填充色块内部
%
% 'DisplayOpt' --- 设定是否在色块中显示矩阵元素值,其参数值为:
% 'On' --- 显示矩阵元素值(默认)
% 'Off' --- 不显示矩阵元素值
%
% 'TextColor' --- 设定文字的颜色,其参数值为:
% 表示单色的字符('r','g','b','y','m','c','w','k'),默认为黑色
% 1行3列的红、绿、蓝三元色灰度值向量([r,g,b])
% 'Auto' --- 根据矩阵元素值自动确定文字颜色
%
% 'XVarNames' --- 设定X轴方向需要显示的变量名(默认为X1,X2,...),其参数值为:
% 字符串矩阵或字符串元胞数组,若为字符串矩阵,其行数应与data的列数相同
% 若为字符串元胞数组,其长度应与data的列数相同。
%
% 'YVarNames' --- 设定Y轴方向需要显示的变量名(默认为Y1,Y2,...),其参数值为:
% 字符串矩阵或字符串元胞数组,若为字符串矩阵,其行数应与data的行数相同
% 若为字符串元胞数组,其长度应与data的行数相同。
%
% 'ColorBar' --- 设定是否显示颜色条,其参数值为:
% 'On' --- 显示颜色条
% 'Off' --- 不显示颜色条(默认)
%
% 'Grid' --- 设定是否显示网格线,其参数值为:
% 'On' --- 显示网格线(默认)
% 'Off' --- 不显示网格线
%
% Example:
% x = [1,-0.2,0.3,0.8,-0.5
% -0.2,1,0.6,-0.7,0.2
% 0.3,0.6,1,0.5,-0.3
% 0.8,-0.7,0.5,1,0.7
% -0.5,0.2,-0.3,0.7,1];
% matrixplot(x);
% matrixplot(x,'DisplayOpt','off');
% matrixplot(x,'FillStyle','nofill','TextColor','Auto');
% matrixplot(x,'TextColor',[0.7,0.7,0.7],'FigShap','s','FigSize','Auto','ColorBar','on');
% matrixplot(x,'TextColor','k','FigShap','d','FigSize','Full','ColorBar','on','FigStyle','Triu');
% XVarNames = {'xiezhh','heping','keda','tust','tianjin'};
% matrixplot(x,'FigShap','e','FigSize','Auto','ColorBar','on','XVarNames',XVarNames,'YVarNames',XVarNames);
%
% CopyRight:xiezhh(谢中华),2013.01.24编写
% 对第一个输入参数类型进行判断
if ~ismatrix(data) || ~isreal(data)
error('输入参数类型不匹配:第一个输入参数应为实值矩阵');
end
% 解析成对出现的参数名/参数值
[FigShape,FigSize,FigStyle,FillStyle,DisplayOpt,TextColor,XVarNames,...
YVarNames,ColorBar,GridOpt] = parseInputs(varargin{:});
% 产生网格数据
[m,n] = size(data);
[x,y] = meshgrid(0:n,0:m);
data = data(:);
maxdata = nanmax(data);
mindata = nanmin(data);
rangedata = maxdata - mindata;
if isnan(rangedata)
warning('MATLAB:warning1','请检查您输入的矩阵是否合适!');
return;
end
z = zeros(size(x))+0.2;
sx = x(1:end-1,1:end-1)+0.5;
sy = y(1:end-1,1:end-1)+0.5;
if strncmpi(FigStyle,'Tril',4)
z(triu(ones(size(z)),2)>0) = NaN;
sx(triu(ones(size(sx)),1)>0) = NaN;
elseif strncmpi(FigStyle,'Triu',4)
z(tril(ones(size(z)),-2)>0) = NaN;
sx(tril(ones(size(sx)),-1)>0) = NaN;
end
sx = sx(:);
sy = sy(:);
id = isnan(sx) | isnan(data);
sx(id) = [];
sy(id) = [];
data(id) = [];
if isempty(XVarNames)
XVarNames = strcat('X',cellstr(num2str((1:n)')));
else
if (iscell(XVarNames) && (numel(XVarNames) ~= n)) || (~iscell(XVarNames) && (size(XVarNames,1) ~= n))
error('X轴方向变量名应为字符串矩阵或字符串元胞数组,其长度与输入矩阵的列数相同');
end
end
if isempty(YVarNames)
YVarNames = strcat('Y',cellstr(num2str((1:m)')));
else
if (iscell(YVarNames) && (numel(YVarNames) ~= m)) || (~iscell(YVarNames) && (size(YVarNames,1) ~= m))
error('Y轴方向变量名应为字符串矩阵或字符串元胞数组,其长度与输入矩阵的行数相同');
end
end
% 绘图
figure('color','w',...
'units','normalized',...
'pos',[0.289165,0.154948,0.409956,0.68099]);
axes('units','normalized','pos',[0.1,0.022,0.89,0.85]);
if strncmpi(GridOpt,'On',2)
mesh(x,y,z,...
'EdgeColor',[0.7,0.7,0.7],...
'FaceAlpha',0,...
'LineWidth',1); % 参考网格线
end
hold on;
axis equal;
axis([-0.1,n+0.1,-0.1,m+0.1,-0.5,0.5]);
view(2);
% 设置X轴和Y轴刻度位置及标签
set(gca,'Xtick',(1:n)-0.5,...
'XtickLabel',XVarNames,...
'Ytick',(1:m)-0.5,...
'YtickLabel',YVarNames,...
'XAxisLocation','top',...
'YDir','reverse',...
'Xcolor',[0.7,0.7,0.7],...
'Ycolor',[0.7,0.7,0.7],...
'TickLength',[0,0]);
axis off
% 绘制填充色块
if strncmpi(FillStyle,'Fill',3)
MyPatch(sx',sy',data',FigShape,FigSize);
end
% 显示数值文本信息
if strncmpi(DisplayOpt,'On',2)
str = num2str(data,'%4.2f');
scale = 0.1*max(n/m,1)/(max(m,n)^0.55);
if strncmpi(TextColor,'Auto',3)
ColorMat = get(gcf,'ColorMap');
nc = size(ColorMat,1);
cid = fix(mapminmax(data',0,1)*nc)+1;
cid(cid<1) = 1;
cid(cid>nc) = nc;
TextColor = ColorMat(cid,:);
for i = 1:numel(data)
text(sx(i),sy(i),0.1,str(i,:),...
'FontUnits','normalized',...
'FontSize',scale,...
'fontweight','bold',...
'HorizontalAlignment','center',...
'Color',TextColor(i,:));
end
else
text(sx,sy,0.1*ones(size(sx)),str,...
'FontUnits','normalized',...
'FontSize',scale,...
'fontweight','bold',...
'HorizontalAlignment','center',...
'Color',TextColor);
end
end
% 设置X轴和Y轴刻度标签的缩进方式
MyTickLabel(gca,FigStyle);
% 添加颜色条
if strncmpi(ColorBar,'On',2)
if any(strncmpi(FigStyle,{'Auto','Triu'},4))
colorbar('Location','EastOutside');
else
colorbar('Location','SouthOutside');
end
end
end
% ---------------------------------------------------
% 调整坐标轴刻度标签子函数
% ---------------------------------------------------
function MyTickLabel(ha,tag)
% 根据显示范围自动调整坐标轴刻度标签的函数
% ha 坐标系句柄值
% tag 调整坐标轴刻度标签的标识字符串,可用取值如下:
% 'Auto' --- 将x轴刻度标签旋转90度,y轴刻度标签不作调整
% 'Tril' --- 将x轴刻度标签旋转90度,并依次缩进,y轴刻度标签不作调整
% 'Triu' --- 将x轴刻度标签旋转90度,y轴刻度标签依次缩进
% Example:
% MyTickLabel(gca,'Tril');
%
% CopyRight:xiezhh(谢中华),2013.1编写
if ~ishandle(ha)
warning('MATLAB:warning2','第一个输入参数应为坐标系句柄');
return;
end
if ~strcmpi(get(ha,'type'),'axes')
warning('MATLAB:warning3','第一个输入参数应为坐标系句柄');
return;
end
axes(ha);
xstr = get(ha,'XTickLabel');
xtick = get(ha,'XTick');
xl = xlim(ha);
ystr = get(ha,'YTickLabel');
ytick = get(ha,'YTick');
yl = ylim(ha);
set(ha,'XTickLabel',[],'YTickLabel',[]);
x = zeros(size(ytick)) + xl(1) - range(xl)/30;
y = zeros(size(xtick)) + yl(1) - range(yl)/70;
nx = numel(xtick);
ny = numel(ytick);
if strncmpi(tag,'Tril',4)
y = y + (1:nx) - 1;
elseif strncmpi(tag,'Triu