How to convert a vector to be a string
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Izzat Brgli
am 28 Mär. 2021
Kommentiert: Stephen23
am 30 Mär. 2021
I'm trying to convert a vector to be a string. for example
[1,2,3,4] -> "[1,2,3,4]"
so I did write this func
function [output] = make_string(arr)
output ={};
for i=1:length(arr)
output{end+1} = strcat('[',num2str(arr{i}),']');
end
end
but unfortunately, it takes a lot of computing time and my script became really slow. So is there any other solution?
thanks a lot in advance
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Ken Garrard
am 28 Mär. 2021
You don't need a cell array for this problem and your make_string function has errors. See doc 'cell arrays'.
If you want a comma between the values in the output string you can use the sprintf function.
s = ['[' sprintf('%g, ',A(1:end-1)) sprintf('%g]',A(end))];
This is also about 40% faster than mat2str.
4 Kommentare
Stephen23
am 28 Mär. 2021
"what do you recommend to do?"
Exactly like I wrote in my last comment, I reccomend that you give more details of what you are currently doing, so that someone can help you. If you do not give example code, we cannot guess exactly what you are doing.
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