YTickLabel将在Matlab中显示一些指定值（不显示全部）

Question

我有代码和结果如下：

%% How to plot each matrix in a cell in 3d plot(1 matrix with 1 color) ?
% Generate Sample data cell A(1x10 cell array)
clear; clc;
A = cell(1,10); % cell A(1x10 cell array)
for kk = 1:numel(A)
  z = 10*rand()+(0:pi/50:10*rand()*pi)';
  x = 10*rand()*sin(z);
  y = 10*rand()*cos(z);
  A{kk} = [x,y,z];
end  
A_6 = A(1:6);        % generate a cell with the first 6 matrices in "A" cell array 
                     % The numer "6" can be changed to be any number which you want to plot them by colormap                      
newA = vertcat(A_6{:});                   %Concatenating all matrices inside A vertically
numcolors = numel(A_6);                   %Number of matrices equals number of colors
colourRGB = hsv(numcolors);             %Generating colours to be used using hsv colormap
colourtimes = cellfun(@(x) size(x,1),A_6);%Determining num of times each colour will be used
colourind = zeros(size(newA,1),1);      %Zero matrix with length equals num of points
colourind([1 cumsum(colourtimes(1:end-1))+1]) = 1;
colourind = cumsum(colourind);          %Linear indices of colours for newA
scatter3(newA(:,1), newA(:,2), newA(:,3), [], colourRGB(colourind,:),'filled');
%if you want to specify the size of the circles, use the following line instead:
% scatter3(newA(:,1), newA(:,2), newA(:,3), colourind , colourRGB(colourind,:),'filled');
grid on;
view(3);                                %view in 3d plane 
colormap(colourRGB);                    %using the custom colormap of the colors we used
%Adjusting the position of the colorbar ticks
caxis([1 numcolors]);
colorbar('YTick',[1+0.5*(numcolors-1)/numcolors:(numcolors-1)/numcolors:numcolors],'YTickLabel', num2str([1:numcolors]'), 'YLim', [1 numcolors]);

我有这样的图像：

如何用一些指定值（不显示全部）显示“YTickLabel”，如下图所示？

Answer 1

将评论中的代码转到上一个答案：

h = colorbar('YTick',[1:numcolors],'YTickLabel', num2str([1:numcolors]'), 'YLim', [1 numcolors]); set(h, 'Ticklabels', {1 [] 3 [] 5 6}); set(h, 'Ticks', {1 3 5 6});

您现在只为4个刻度设置6个刻度标签。如果将刻度设置为正确的值，则自动生成的刻度标签将是您想要的。

尝试以下方法：

h = colorbar('YTick',[1:numcolors],'YTickLabel', num2str([1:numcolors]'), 'YLim', [1 numcolors]); 
set(h, 'Ticks', {1 3 5 6});

Answer 2

要删除带有标签的一些刻度，只需相应地设置颜色栏的'YTick'属性即可。也就是说，用以下内容替换你的最后一行：

colorbar('YTick', [1 3 5 6], 'YLim', [1 numcolors])