How to plot cell array data?

Question

Cynthia Dickerson 2016-8-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/299302-how-to-plot-cell-array-data

评论： Cynthia Dickerson 2016-8-19

I'm trying to plot the contents of a cell array (RSD_c{v}) composed of 5 32x3 double matrices. I want each column to be the X,Y,and Z variable, respectively.

if true
  %Plot bias vs. B vs. v
  %bias, B, and v contained in RSD_c(:,1), RSD_c(:,2), and RSD_c(:,5), respectively
   figure;hold on;
   cellfun(@scatter3,RSD_c(:,1),RSD_c(:,2),RSD_c(:,3));
end

When I run the above code,I get the error, "??? Error using ==> scatter3 at 63 X, Y and Z must be vectors of the same length."

What am I doing wrong? How do I fix this?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Adam 2016-8-11

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/299302-how-to-plot-cell-array-data#answer_231484

在 MATLAB Online 中打开

cellfun( @(x) scatter3( x(:,1), x(:,2), x(:,3) ), RSD_c )

should work, though I haven't double-checked the syntax in Matlab itself.

doc cellfun

should give examples of this syntax for calling.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Cynthia Dickerson 2016-8-19

在 MATLAB Online 中打开

Thanks. I used the following code:

if true
  figure;hold on;
cellfun( @(x) scatter3( x(:,3), x(:,4), x(:,5) ), RSD_c );
title('Relationship Between Relative Standard Deviation, Bootstrap Replicates, and Dimension')
xlabel('Bootstrap Replicates') % x-axis label
ylabel('Relative Standard Deviation') % y-axis label
zlabel('Dimensions') % z-axis label
end

It does create a plot, and tracing the points shows that they have x, y, and z coordinates. However, the graph is 2-dimensional, with the points color-coded by z-coordinate.

Does anybody know how to fix this?

请先登录，再进行评论。