我正在嘗試引導我正在處理的一段代碼，但是我收到了奇怪的結果，這些結果不會發生在看起來相同的for-loop中。任何人都可以看到為什么這兩個版本獲得不同的結果？

此外，如果任何人有任何指示我如何能夠引導第一個for循環，并為每個單元格生成一個二進制位置矩陣，那將是甜蜜的。

非常感謝您的幫助

Formatted code

普通代碼：

function create_distances()

x=3; % Dimensions of grid

y=3;

num_cells=x*y; % Num of cells in grid

% In following code a matrix is generated for each cell, in which that cell

% is set to 1 and all others zero.

locations=zeros(x,y,num_cells); % Initialise blank array to store each location on grid

for current_index=1:num_cells;

temp=locations(:,:,current_index);

temp([current_index])=1;% Set a single cell to 1 to represent which cell is the active one for each of the cells

locations(:,:,current_index)=temp; % Store back to that location matrix

end

%%For loop version which correctly creates the distances

distances_from_position1=zeros(x,y,num_cells);

for current_location1=1:num_cells

distances_from_position1(:,:,current_location1)=bwdist(locations(:,:,current_location1));

end

% Vectorised version of same code which gives incorrect distance values

current_location2=1:num_cells;

distances_from_position2=zeros(x,y,num_cells);

distances_from_position2(:,:,current_location2)=bwdist(locations(:,:,current_location2));

%Gives correct results

correct_values=distances_from_position1

%incorrect_values=distances_from_position2;

if eq(distances_from_position1,distances_from_position2)==1

disp('Same results')

else

disp('Two methods give different results') %This message shown each time

end

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