adding data from one cell array to a matrix
显示 更早的评论
M is a 2x4matrix
H is a 3x4cell array
How do i add the 1st row of H to every row of M?
M = [
1 2 3 4
5 6 7 8
];
H = {[15 35] [10 20] [30 40 10] [15]
[30 20 15] [45 55] [50 70] [30 70]
[25] [10 20 30] [25 35] [60 70]};
fun = @(m,h) [fliplr(h)+m,m,m+h];
ans=cellfun(fun,num2cell(M), *H{1,:}*,'Uni',0); < what do i put H as?
ans={[36 16 1 16 36] [20 12 2 12 22] [13 43 33 3 33 43 13] [19 4 19]
[40 20 5 20 40] [26 16 6 16 26] [17 47 37 7 37 47 17] [23 8 23]}
2 个评论
Stephen23
2017-11-29
Do not use ans as the names of any variable. It is a special variable that can be overwritten by MATLAB.
Joseph Lee
2017-11-29
采纳的回答
If M has two rows then
H([1,1],:)
In general
H(ones(1,size(M,1)),:)
or
repmat(H(1,:),size(M,1),1)
3 个评论
Joseph Lee
2017-11-29
编辑：Joseph Lee
2017-11-29
Stephen23
2017-11-29
Demonstration:
M = [1,2,3,4;5,6,7,8];
H = {[15,35],[10,20],[30,40,10],[15];[30,20,15],[45,55],[50,70],[30,70];[25],[10,20,30],[25,35],[60,70]};
fun = @(m,h) [fliplr(h)+m,m,m+h];
tmp = H(ones(1,size(M,1)),:);
C = cellfun(fun,num2cell(M),tmp, 'Uni',0);
Giving:
>> C{:}
ans =
36 16 1 16 36
ans =
40 20 5 20 40
ans =
22 12 2 12 22
ans =
26 16 6 16 26
ans =
13 43 33 3 33 43 13
ans =
17 47 37 7 37 47 17
ans =
19 4 19
ans =
23 8 23
>>
Joseph Lee
2017-11-29
编辑：Joseph Lee
2017-11-30
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