フィルターのクリア

Is it possible to write methods that iteratively process each element of an objectarray without writing for-loops each time?

3 ビュー (過去 30 日間)
If I have such an objectarray:
classdef ObjectArray
properties
Value
end
methods
function obj = ObjectArray(F)
if nargin ~= 0
m = size(F,1);
n = size(F,2);
obj(m,n) = obj;
for i = 1:m
for j = 1:n
obj(i,j).Value = F;
end
end
end
end
end
end
An instance A is created as:
F = magic(5);
A = ObjectArray(F);
And I would like to calculate the mean, the max, or do whatever calculations based on each obj.Value, then is it possible to write methods without iterations in each of them?
I expect something like this:
function obj = get.mean(obj)
obj.mean = mean(obj.value)
end
but apparently it doesn't work.

採用された回答

Matt J
Matt J 2021 年 4 月 8 日
編集済み: Matt J 2021 年 4 月 8 日
It is not possible in a get.property() method, but it is possible in a normal method.
function meanValues = mean(Objects)
meanValues = arrayfun( @(ob)mean(ob.Value,'all') , Objects);
end
  2 件のコメント
zhehao.nkd
zhehao.nkd 2021 年 4 月 8 日
編集済み: zhehao.nkd 2021 年 4 月 8 日
Thank you so much! So at least (1) a function handle and (2) arrayfun() is needed, just like how a normal cell object was treated.
Matt J
Matt J 2021 年 4 月 8 日
Thank you so much!
You're quite welcome, but please click "Accept" if this addressed your problem.
So at least (1) a function handle and (2) arrayfun() is needed, just like how a normal cell object was treated.
It is one solution. If obj.values are all matrices of the same size, you could also have done ,
function meanValues = mean(Objects)
meanValues=mean( cat(3,Objects.Values) , [1,2]);
meanValues=reshape(meanValues,size(Objects));
end

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeConstruct and Work with Object Arrays についてさらに検索

製品


リリース

R2019a

Community Treasure Hunt

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

Start Hunting!

Translated by