Question

Matlab元胞数组的合并

2行4列元胞结构如下:
a=
'g1' 'g2' [] []
'g3' 'g4' 'g5' []
如何将a合并为1行5列的结构：{'g1' 'g2' 'g3' 'g4' 'g5'}？

Answer 1

a = {'g1' 'g2' [] []
'g3' 'g4' 'g5' []};
b = a(~cellfun(@isempty,a))'
b =

'g1' 'g3' 'g2' 'g4' 'g5'

Answer 2

a={'g1' 'g2' [] []
'g3' 'g4' 'g5' []};
a=reshape(a',1,8);
>> a(3:4)=[]
a =
'g1' 'g2' 'g3' 'g4' 'g5' []

>> a(6)=[]
a =
'g1' 'g2' 'g3' 'g4' 'g5'

追问

有没有更简单的方法呢？如果a=cell(100,100)规模的呢？

追答

a={'g1' 'g2' [] []
'g3' 'g4' 'g5' []};
[m,n]=size(a);
a=reshape(a',1,m*n);
b=cell(1,m*n);
j=1;
for i=1:m*n
if ~isempty(a{i})
b{j}=a{i};
j=j+1;
end
end
b(j:end)=[];

>>b =

'g1' 'g2' 'g3' 'g4' 'g5'