Error- Assignment has more non-singleton rhs dimensions than non-singleton subscripts?

2018 4 9
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更新时间：2018 4 9
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I'm trying to reshape data from a file(A), into a matrix(dcburn) that I made in a certain way using for loops. it keeps giving me this error. I tried doing it multiple ways this is one of them.
A = load('dc.burn.out.txt');
n = length(A);
dcburn = ones(214,223)*-99999;
numrow = 214;
numcol = 223;
k = 1:1:n;
for i = numrow:-1:1;
for j = 1:1:numcol;
dcburn(i,j) = A(k);
end
end

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KSSV
KSSV 2018-4-9
Check the size A(k)...it could be a vector and you are trying to save it into a single location
Birdman
Birdman 2018-4-9
Your code is already shared. Your txt file is needed.
Alexis Diaz
Alexis Diaz 2018-4-9
how can I share my data? and well yea I guess its a vector. it has the size of 47722 which is the exact same size for the matrix 214*233, so I'm just trying to input the numbers from data(A) on a certain way which is how I have my for loops set up.
Alexis Diaz
Alexis Diaz 2018-4-9
编辑：Alexis Diaz 2018-4-9
so A is in the form of A(47722,1) and its just full of 0, 1, 2, 3, and 4s. i uploaded the file^

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 采纳的回答

Birdman
Birdman 2018-4-9
编辑：Birdman 2018-4-9

0 个投票

Well, your problem comes from the fact that you try to put your A vector into one single element of dcburn everytime and this will throw an error. You can either do it by using cell arrays, as follows(I think this is not what you intended to do):
A = load('dc.burn.out.txt');
n = length(A);
dcburn = num2cell(ones(214,223)*-99999);
numrow = 214;
numcol = 223;
k = 1:n;
for i = numrow:-1:1
for j = 1:1:numcol
dcburn{i,j} = A(k);
end
end
or you can simply use reshape function which will convert your vector to a matrix with predefined dimensions as follows, which will make it a numeric multidimensional array:
A = load('dc.burn.out.txt');
n = length(A);
dcburn=reshape(A,214,223)

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Alexis Diaz
Alexis Diaz 2018-4-9
So yea i get what you said, and well i ran that code but it wasn't giving me the actual number... it just gave me {47722x1 double} for basically the whole matrix. and the reason why i didn't use reshape is because the assignment is to reshape it without using "reshape" command. Isn't there another way to rewrite or add something else? Also because we haven't learned num2cell, thank you.
Alexis Diaz
Alexis Diaz 2018-4-9
actually i think i got it... i ran this
A = load('dc.burn.out.txt');
n = length(A);
dcburn = ones(214,223)*-9999;
numrow = 214;
numcol = 223;
k = 1:1:n;
count = 0;
for i = numrow:-1:1;
for j = 1:1:numcol;
count = count + 1;
dcburn(i,j) = A(count);
end
end
Birdman
Birdman 2018-4-9
Yes, this is also a way but very inefficient. Anyway, if your problem is solved, then there is nothing to say.
Alexis Diaz
Alexis Diaz 2018-4-9
well thank you ill still accept your answer for helping me. :)

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