Add Rows to Matrix

2019 8 7
1 个回答
更新时间：2019 8 7
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0 个投票

Hello! I'm trying to create a matrix with zero values
[x,y]=min(Data); % Data 200x1000 x=1x1000 (double)
a=[10 10 10...] % my calculated values, as a 1x1000 ( single) array
zeromatrix=zeros(a,length(x));
res = bsxfun(@plus, Data, zeromatrix);
Error using zeros
Size inputs must be scalar.
I'm trying to add the number of rows I need to the Data matrix, but it gives me an error, please help me how to solve it
Data Data 200x1000 , and I want to get the matrix Data 210x1000

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回答（1 个）

KALYAN ACHARJYA
KALYAN ACHARJYA 2019-8-7
编辑：KALYAN ACHARJYA 2019-8-7

0 个投票

The issue is:
zeromatrix=zeros(a,length(x));
%................^ sizes must be scalar value, you pass the vector a
Is this one, where res 100x100?
[x,y]=min(Data); % Data 200x1000 x=1x100 (double)
a=rand(1,100); % my calculated values, as a 1x1000 ( single) array
zeromatrix=zeros(length(a),length(x));
res=bsxfun(@plus, Data, zeromatrix);
You can do it in simpler ways. If you are looking for different, can you elaboarte with small example

4 个评论
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Lev Mihailov
Lev Mihailov 2019-8-7
Error using bsxfun
Non-singleton dimensions of the two input arrays must match each other.
gives such an error
KALYAN ACHARJYA
KALYAN ACHARJYA 2019-8-7
I have tried with this sample data, no error, Note on Data and a
Data=randi(200,100);
[x,y]=min(Data); % Data 200x1000 x=1x100 (double)
a=rand(1,100); % my calculated values, as a 1x1000 ( single) array
zeromatrix=zeros(length(a),length(x));
res=bsxfun(@plus, Data, zeromatrix);
Lev Mihailov
Lev Mihailov 2019-8-7
[x,y]=min(Data); % Data 200x1000 x=1x1000 (double)
a=[10 10 10...] % my calculated values, as a 1x1000 ( single) array
zeromatrix=zeros(a(1),length(x));
res = bsxfun(@plus, Data, zeromatrix);
Error using bsxfun
Non-singleton dimensions of the two input arrays must match each other.
since a in all columns takes one value, I did so (a = 10x1000) and still shows an error when adding rows to my matrix ps the desired matrix has been created now I need to add it line by line
KALYAN ACHARJYA
KALYAN ACHARJYA 2019-8-7
编辑：KALYAN ACHARJYA 2019-8-7
Data=randi(200,1000);
[x,y]=min(Data); % Data 200x1000 x=1x100 (double)
a=rand(1,1000); % my calculated values, as a 1x1000 ( single) array
zeromatrix=zeros(length(a),length(x));
res=bsxfun(@plus, Data, zeromatrix);
1234.png

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