checking if field values in a single struct are identical

13 次查看（过去 30 天）
Davindra Usov
Davindra Usov 2023-1-19
评论： Davindra Usov 2023-2-1
Hello,
I have a struct (S) with 13 fields. Each field has a 'density' column. I want to do an if statement which checks if all the values in the density columns are the same for each field (all 13 of them) i.e. density vals in field 1 = density vals in field 2 etc
if...(need help with this line)
disp('same altitude')
else
disp('different heights')
end
thank you
  1 个评论
Jan
Jan 2023-1-19
编辑：Jan 2023-1-19
What does this mean: "Each field has a 'density' column." Do the fields contain tables? Or is "density" the name of a subfield containing a clumn vector?
Prefer to post some Matlab code, which creates some small example data.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan
Jan 2023-1-19
Depending on how the inputs look exactly, maybe:
FieldC = struct2cell(S);
Eq = true;
for k = 2:numel(FieldC)
if ~isequal(FieldC{k}.density, FieldC{1}.density)
Eq = false;
break;
end
end
There are shorter methods, but please explain at first exactly, what the inputs are.
  3 个评论
显示 1更早的评论

请先登录，再进行评论。

更多回答（1 个）

Walter Roberson
Walter Roberson 2023-1-19
density_cell = structfun(@(C) {C.density}, YourStruct);
EQ = isequal(density_cell{:});
No explicit loop needed (but structfun is arguably a hidden loop.)

类别

在 Help Center 和 File Exchange 中查找有关 Function Creation 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by