Define vector to use for colorbar in MATLAB -

i plotting bar+scatter plot scatter points colored according separate variable. problem having colorbar using wrong values @ moment. if plot scatter plot , add colorbar, range of colorbar correct.

i using matlab 2016a.

please find working example of code below:

figure subplot(2,1,1) = 1; b = 2; r = (b-a).*rand(1,7) + a; y = r; rr = (b-a).*rand(1,7) + a; z = rr; x = [1:7]; zz = rand(1,7) yyaxis left hold on = 1:7     h=bar(i,y(i), 'facecolor',[1 1 1], 'linewidth',3);     yb(i) = cat(1, h.ydata);     xb(i) = bsxfun(@plus, h(1).xdata, [h.xoffset]');     if zz(i) < 0.0300000         set(h,'edgecolor','k');     elseif zz(i) < 0.050000000         set(h,'edgecolor','b');     elseif zz(i) < 0.070000000         set(h,'edgecolor','g');     else         set(h,'edgecolor','r');     end end ylabel('hm', 'fontsize', 12, 'fontweight', 'bold') i1=1:7     t = text(xb(i1)-0.2,yb(i1),num2str(yb(i1),'%0.3f'),...         'horizontalalignment','center',...         'verticalalignment','bottom')     s = t.fontsize;     t.fontsize = 12;     t.fontweight = 'bold'; end yyaxis right pointsize = 40; hh = scatter(x,z,pointsize, zz,'filled') cc = colormap([hsv(20)]) c = colorbar c.label.string = 'pos'; set(gca,'ydir','reverse') ylabel('ok', 'fontsize', 12, 'fontweight', 'bold') lgd = legend([h, hh], 'hm', 'ok') subplot(2,1,2) x = [1:8] = 1; b = 2; r = (b-a).*rand(1,8) + a; y = r; rr = (b-a).*rand(1,8) + a; z = rr; zz = rand(1,8); yyaxis left hold on = 1:8     h=bar(i,y(i), 'facecolor',[1 1 1], 'linewidth',3);     yb(i) = cat(1, h.ydata);     xb(i) = bsxfun(@plus, h(1).xdata, [h.xoffset]');     if zz(i) < 0.0300000         set(h,'edgecolor','k');     elseif zz(i) < 0.050000000         set(h,'edgecolor','b');     elseif zz(i) < 0.070000000         set(h,'edgecolor','g');     else         set(h,'edgecolor','r');     end end i1=1:8     t = text(xb(i1)-0.2,yb(i1),num2str(yb(i1),'%0.3f'),...         'horizontalalignment','center',...         'verticalalignment','bottom')     s = t.fontsize;     t.fontsize = 12;     t.fontweight = 'bold'; end ylabel('hm', 'fontsize', 12, 'fontweight', 'bold') yyaxis right pointsize = 40; hh = scatter(x,z,pointsize, zz,'filled') set(gca,'ydir','reverse') ylabel('ok', 'fontsize', 12, 'fontweight', 'bold') c = colorbar c.label.string = 'pos'; lgd = legend([h, hh], 'hm', 'ok') %title(lgd,'my legend title') hold off 

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edit working example of 1 solution question.

figure = 1; b = 2; r = (b-a).*rand(1,7) + a; y = r; rr = (b-a).*rand(1,7) + a; z = rr; x = [1:7]; zz = rand(1,7)   colormap(jet)   yyaxis left   hold on   = 1:length(y)       h=bar(i,y(i), 'facecolor',[1 1 1], 'linewidth',3);       yb(i) = cat(1, h.ydata);       xb(i) = bsxfun(@plus, h(1).xdata, [h.xoffset]');       if zz(i) < 0.0300000           set(h,'edgecolor','k');       elseif zz(i) < 0.050000000           set(h,'edgecolor','k');       elseif zz(i) < 0.070000000           set(h,'edgecolor','k');       else           set(h,'edgecolor','k');       end   end     cco = min(zz)     cct = max(zz)     caxis([cco cct])     coloo = colorbar     coloo.label.string = 'cbar';     %h = bar(y, 0.2, 'facecolor',[1 1 1], 'edgecolor',[0 0 0],'linewidth',2);     %yb = cat(1, h.ydata);     %xb = bsxfun(@plus, h(1).xdata, [h.xoffset]');     i1=1:7 % numel(yb)         t = text(xb(i1)-0.3,yb(i1),num2str(yb(i1),'%0.3f'),...                    'horizontalalignment','center',...                    'verticalalignment','bottom')                     s = t.fontsize;                     t.fontsize = 12;                     t.fontweight = 'bold';     end     ylabel('ok', 'fontsize', 12, 'fontweight', 'bold')     yyaxis right     pointsize = 80;     hh = scatter(x,z,pointsize, zz,'filled')     set(gca,'ydir','reverse')     ylabel('mm', 'fontsize', 12, 'fontweight', 'bold')     c = colorbar     c.label.string = 'cbar';     lgd = legend([h, hh], 'ok', 'mm')     %title(lgd,'my legend title')     hold off 

the problem zz. define vector, scatter uses figures colormap choose colors reltive values in zz. instead, define color matrix, i.e. n-by-3 matrix each row define 1 color in rgb values between 0 1.

in example, try this: zz = rand(7,3) first subplot, , zz = rand(8,3) second.

here code, set zz matrix of colors, , use both scatters:

figure subplot(2,1,1) = 1; b = 2; r = (b-a).*rand(1,7) + a; y = r; rr = (b-a).*rand(1,7) + a; z = rr; x = 1:7; %%%% part new:  zz = [0    0.447 0.741;     0.85  0.325 0.098;     0.929 0.694 0.125;     0.494 0.184 0.556;     0.466 0.674 0.188;     0.301 0.745 0.933;     0.635 0.078 0.184;     0.432 0.915 0.121]; %%%%%%%%%%%%%%%%%%%%%%%% yyaxis left hold on = 1:7     h=bar(i,y(i), 'facecolor',[1 1 1], 'linewidth',3);     yb(i) = cat(1, h.ydata);     xb(i) = bsxfun(@plus, h(1).xdata, [h.xoffset]');     if zz(i) < 0.0300000         set(h,'edgecolor','k');     elseif zz(i) < 0.050000000         set(h,'edgecolor','b');     elseif zz(i) < 0.070000000         set(h,'edgecolor','g');     else         set(h,'edgecolor','r');     end end ylabel('hm', 'fontsize', 12, 'fontweight', 'bold') i1=1:7     t = text(xb(i1)-0.2,yb(i1),num2str(yb(i1),'%0.3f'),...         'horizontalalignment','center',...         'verticalalignment','bottom');     s = t.fontsize;     t.fontsize = 12;     t.fontweight = 'bold'; end yyaxis right pointsize = 40; hh = scatter(x,z,pointsize, zz(1:numel(x),:),'filled'); cc = colormap(hsv(20)); c = colorbar; c.label.string = 'pos'; set(gca,'ydir','reverse') ylabel('ok', 'fontsize', 12, 'fontweight', 'bold') legend([h, hh], 'hm', 'ok');  subplot(2,1,2) x = 1:8; = 1; b = 2; r = (b-a).*rand(1,8) + a; y = r; rr = (b-a).*rand(1,8) + a; z = rr; yyaxis left hold on = 1:8     h=bar(i,y(i), 'facecolor',[1 1 1], 'linewidth',3);     yb(i) = cat(1, h.ydata);     xb(i) = bsxfun(@plus, h(1).xdata, [h.xoffset]');     if zz(i) < 0.0300000         set(h,'edgecolor','k');     elseif zz(i) < 0.050000000         set(h,'edgecolor','b');     elseif zz(i) < 0.070000000         set(h,'edgecolor','g');     else         set(h,'edgecolor','r');     end end i1=1:8     t = text(xb(i1)-0.2,yb(i1),num2str(yb(i1),'%0.3f'),...         'horizontalalignment','center',...         'verticalalignment','bottom');     s = t.fontsize;     t.fontsize = 12;     t.fontweight = 'bold'; end ylabel('hm', 'fontsize', 12, 'fontweight', 'bold') yyaxis right pointsize = 40; hh = scatter(x,z,pointsize, zz(1:numel(x),:),'filled'); set(gca,'ydir','reverse') ylabel('ok', 'fontsize', 12, 'fontweight', 'bold') c = colorbar; c.label.string = 'pos'; lgd = legend([h, hh], 'hm', 'ok'); %title(lgd,'my legend title') hold off 

and notice zz(1:numel(x),:) within scatter command, suite size of data.

this result:

edit: after response see want scatter in colors colormap still there many improvements can add code, publish here second version works second edit, shorter , simpler. know tricks, they'll save time ;)

a = 1; b = 2; r = (b-a).*rand(1,7) + a; y = r; rr = (b-a).*rand(1,7) + a; z = rr; x = 1:7; zz = rand(1,7); colormap(jet) caxis([min(zz) max(zz)]) bary = diag(y); bary(bary==0) = nan; col_thresh = [0.03 0.05 0.07 1]; bar_color = {'r'; 'g'; 'b'; 'k'}; bar_group = sum(bsxfun(@lt,zz.',col_thresh),2); yyaxis left hold on h = bar(bary,'stacked','facecolor',[1 1 1], 'linewidth',3); set(h,{'edgecolor'},bar_color(bar_group)) text(x-0.3,y,num2str(y.','%0.3f'),...         'horizontalalignment','center',...         'verticalalignment','bottom','fontsize',12,...         'fontweight','bold'); ylabel('ok', 'fontsize', 12, 'fontweight', 'bold') yyaxis right pointsize = 80; hh = scatter(x,z,pointsize,zz,'filled'); hh.parent.ydir = 'reverse'; ylabel('mm', 'fontsize', 12, 'fontweight', 'bold') c = colorbar; c.label.string = 'cbar'; legend([h(1), hh], 'ok', 'mm'); hold off