Convert 8x3 char to string sequence (MATLAB)
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high speed
on 1 Dec 2022
Commented: Walter Roberson
on 1 Dec 2022
Dear,
I have this char characters on MATLAB:
val =
'011'
'010'
'001'
'000'
'000'
'001'
'010'
'011'
I want to convert them to one sequence of type string to obtain this result:
"011010001000000001010011"
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More Answers (2)
David Hill
on 1 Dec 2022
val=['011'
'010'
'001'
'000'
'000'
'001'
'010'
'011']
val=val'
val=val(:)'
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Steven Lord
on 1 Dec 2022
val = ...
['011'
'010'
'001'
'000'
'000'
'001'
'010'
'011'];
s = join(string(val), '')
2 Comments
Walter Roberson
on 1 Dec 2022
Without using string(), such as for older MATLAB:
val = ...
['011'
'010'
'001'
'000'
'000'
'001'
'010'
'011'];
s = strjoin(cellstr(val), '')
Walter Roberson
on 1 Dec 2022
Interesting, using string() is measurably faster here.
format long g
val = char(randi(+'0', +'1'), 5000, 50);
N = 100;
t_string = zeros(N,1);
t_cell = zeros(N,1);
for K = 1 : N; start = tic; s = join(string(val), ''); stop = toc(start); t_string(K) = stop; end
for K = 1 : N; start = tic; s = strjoin(cellstr(val), ''); stop = toc(start); t_cell(K) = stop; end
[mean(t_string(2:end)), mean(t_cell(2:end))]
plot([t_string(2:end), t_cell(2:end)]);
legend({'string()', 'cellstr()'})
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