How to overload all functions and operators of a new class?

5 ビュー (過去 30 日間)
Jin Sun
Jin Sun 2016 年 3 月 24 日
コメント済み: Jin Sun 2016 年 3 月 26 日
Hi, All,
I would like to design a class of multi-dimensional arrays that automatically does a number of things. In particular, automatic array extension as the "bsxfun" function does, only without having to call "bsxfun" explicitly. For example: A=myclass(rand(4,4)); b=myclass(rand(4,1)); C=A.*b; where C will be an 4x4 array given by multiplying elementwise each column of A by b, just like C=bsxfun(@times,A,b) will produce for generic arrays A and b.
Moreover, the code L=log(A); should produce logarithm of each element of A, where L is of course an array of myclass. I hope ALL compatible functions and operators should simultaneously be overloaded. How can I do that?
This class potentially could SIGNIFICANTLY simplify MOST of my past MATLAB coding experience. However, So far I have not been able to do that. I have to overload every specific functions one at a time, which is too tedious and error-prone.
Thank you for any answers.
Jin

採用された回答

LY Cao
LY Cao 2016 年 3 月 26 日
for r2015b or r2016a, you can do this:
builtin('_useSingletonExpansion',1) % undocumented
a = rand(4); b = rand(4,1);
c = a.*b; % bsxfun(@times,a,b)
d = a + b; % bsxfun(@plus,a,b)
e = a./b; % bxfun(@rdivide,a,b)
f = a == b; % bsxfun(@eq,a,b)
g = atan2(a,b); % bsxfun(@atan2,a,b)
h = a.^b; % bsxfun(@power,a,b)
i = mod(a,b); % bsxfun(@mod,a,b)
k = a & b; % bsxfun(@and,a,b)
......
  1 件のコメント
Jin Sun
Jin Sun 2016 年 3 月 26 日
This is good news. Will try it out on the latest version. Thank you.

サインインしてコメントする。

その他の回答 (0 件)

Community Treasure Hunt

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

Start Hunting!

Translated by