match values of cells to numbers
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Hello,
I have the following cell
cell =
6×6 cell array
{' A'} {'B' } {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{' A'} {0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{' A'} {0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{' A'} {0×0 double} {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{' A'} {'D' } {0×0 double} {0×0 double} {0×0 double} {0×0 double}
{' A'} {'B' } {'C' } {0×0 double} {0×0 double} {0×0 double}
The characters 'A', 'B, 'C' and 'D' and 'E' are stored in a cell called name
name =
5×1 cell array
{'A'}
{'B'}
{'C'}
{'D'}
{'E'}
And to each letter, A, B, C , D and E I assign a number, 1 for A, 2 for B, 3 for C , 4 for D and 5 for E. I would like to create a matrix such as
mat =
1 2 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0
0 0 0 0 0 0
1 4 0 0 0 0
1 2 3 0 0 0
So far what I do is use strfind for each value of cell to see if it finds name{1}, name{2}, name{3} etc
for i=1:6
for j=1:6
for k=1:5
idk1=strfind(cell{i,j},name{k});
if isempty(idk1)
mat(i,j,k)=0;
else
mat(i,j,k)=idk1;
end
end
end
end
result=zeros(6,6);
for i=1:KK
result(logical(ire(:,:,i)))=i;
end
Is there a simpler way to do this? This is just an exemple but I'll have cells with over 1000 rows and columns and I'd like to avoid checking each value individually.
Thanks!
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Accepted Answer
Stephen23
on 23 Jan 2019
Edited: Stephen23
on 23 Jan 2019
% Fake data:
C = cell(6,6);
C(:,1) = {'A'};
C([1,6],2) = {'B'};
C(6,3) = {'C'};
C(5,2) = {'D'};
V = {'A','B','C','D','E'};
% Use ISMEMBER:
X = cellfun(@ischar,C);
M = zeros(size(C));
[~,Z] = ismember(C(X),V)
M(X) = Z
Which gives:
M =
1 2 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0
1 0 0 0 0 0
1 4 0 0 0 0
1 2 3 0 0 0
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