Bargraph from variable length structure

3 次查看（过去 30 天）

Adam 2012-9-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/49067-bargraph-from-variable-length-structure

I have a structure compiled from imported (x,y) datasets in the form of variable.dataset(i).x(:), variable.dataset(i).y(:) where the lengths of x&y are the same within the same dataset, but may differ between datasets i.e.:

    variable.dataset(1).x = [1 2 3 4]';
    variable.dataset(1).y = [9 8 7 6]';
    variable.dataset(2).x = [3 4 5 6 7 8]';
    variable.dataset(2).y = [1 9 2 8 3 7]';

is there a way to generate a single bar(x,y) figure containing all the x/y dataset pairs?

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。

采纳的回答

Matt Fig 2012-9-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/49067-bargraph-from-variable-length-structure#answer_59957

编辑：Matt Fig 2012-9-25

在 MATLAB Online 中打开

As long as your x data does not contain duplicates:

% Data.  Note the x has no duplicates.
variable.dataset(1).x = [1 2 3 4]';
variable.dataset(1).y = [9 8 7 6]';  
variable.dataset(2).x = [5 6 7 8 9 10]';
variable.dataset(2).y = [1 9 2 8 3 7]';
bar(vertcat(variable.dataset(:).x),vertcat(variable.dataset(:).y))

If you meant that you want two bar plots on the same figure, do this:

bar(variable.dataset(1).x,variable.dataset(1).y)
hold on 
bar(variable.dataset(2).x,variable.dataset(2).y,'r')

8 个评论
显示 6更早的评论隐藏 6更早的评论

Adam 2012-9-25

在 MATLAB Online 中打开

I was using a somewhat trivial case for the example datasets - I don't believe this works if x is a noninteger i.e.

variable.dataset(1).x = (1:0.25:100)';

any ideas?

Matt Fig 2012-9-25

编辑：Matt Fig 2012-9-25

在 MATLAB Online 中打开

Hopefully you have left nothing out this time!

variable.dataset(1).x = [1 2 3 4]';
variable.dataset(1).y = [9 8 7 6]';
variable.dataset(2).x = [3 4 5 6 7 8]';
variable.dataset(2).y = [1 9 2 8 3 7]';
variable.dataset(3).x = [1.5 2.5 3.5].';  % Non-integers.
variable.dataset(3).y = [6 7 8].';
variable.dataset(4).x = [1.5 2.5 3.5 6.5].';
variable.dataset(4).y = [2 1 3 8].';
U = unique(vertcat(variable.dataset(:).x));
MY = nan(length(U),length(variable.dataset));
MX = repmat(U,1,size(MY,2));
for ii = 1:length(variable.dataset)
    R = ismember(MX(:,1),variable.dataset(ii).x);
    MY(R,ii) = variable.dataset(ii).y;
end
bar(MX,MY)