Probe data from a field in a structure

Question

Joseph Rubin 2020-6-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/542315-probe-data-from-a-field-in-a-structure

回答： darova 2020-6-13

Hello,

I have a structure that contains 6 fields. One of these fields is called 'frames'. 'frames' contains 3500 one dimensional arrays. I want to know if any one of these arrays contains the number 1 or the number 1092. How would I determine this?

Thanks so much,

Joseph Rubin

2 个评论
显示无隐藏无

Stephen23 2020-6-4

What size is the structure?

Joseph Rubin 2020-6-4

This is a 1x3412 struct with 6 fields.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

madhan ravi 2020-6-4

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/542315-probe-data-from-a-field-in-a-structure#answer_446381

在 MATLAB Online 中打开

Counts = nnz(ismember(STRUCt.frames,[1,1092]))

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Joseph Rubin 2020-6-4

在 MATLAB Online 中打开

This does not work. The name of the structure is spotEvents1. I type

Counts = nnz(ismember(spotEvents1.frames,[1,1092]))

and I get the error:

"Error using ismember

Too many input arguments."

Please let me know if you know what to do.

Thanks!

请先登录，再进行评论。

Answer 2

darova 2020-6-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/542315-probe-data-from-a-field-in-a-structure#answer_450651

在 MATLAB Online 中打开

try this

n = numel(sportEvents1);
ind = false(n,1);
for i = 1:numel(sportEvents1)
    if any( ismember(sportEvents1(i).frames,[1 1092]) )
        ind(i) = true;
    end
end