How to remove the for loop from the following code?

2 次查看（过去 30 天）
H R
H R 2021-11-9
回答： Voss 2021-12-29
'Index' is an array of length N. Every elemnt of the array Index is an integer (from 1 to 7)
"xxtr" is a sample matrix with size NxM. This means for every sample (row) of matrix 'xxtr' there is an equivalent integer value in array 'Index'
Ecah element of the cell 'myRF{c,i}' is a fitted fitrensemble model that can predict output y for any sample x.
Is there a way that I can vectorize the following code by excluding the nested for loops (for efficincy purpose)?
Thanks.
for i=1:4
for jj=1:size(xxtr,1)
c=Index(jj);
x=xxtr(jj,:);
[y]=predict(myRF{c,i},x) ; % predictions
yy(jj,i)=y; %
end
end

请先登录，再回答此问题。

采纳的回答

Voss
Voss 2021-12-29
yy = cellfun(@(x,y)predict(x,y),myRF(Index,:),repmat(num2cell(xxtr,2),1,4));

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by