How to convert characters array into integer number array
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Hello,
I have a text file in which all the contents are characters like a,b,c,d…z . Can somone explain how to convert theses alphabets in txt file into numbers like a corresponds to1, b corresponds to 2 ,in the converted file.
Thanks.
采纳的回答
Azzi Abdelmalek
2014-4-9
str='I have a text file in which all the contents are characters like a,b,c,d…z . Can somone explain how to convert theses alphabets in txt file into numbers like a corresponds to1, b corresponds to 2 ,in the converted file'
s='a':'z'
for k=1:numel(s)
str=regexprep(str,s(k),num2str(k),'ignorecase');
end
str
5 个评论
Gova ReDDy
2014-4-9
Azzi Abdelmalek
2014-4-9
str is your string
Gova ReDDy
2014-4-9
编辑：Gova ReDDy
2014-4-9
Azzi Abdelmalek
2014-4-9
fid = fopen('change.txt');
str= textscan(fid,'%s');
fclose(fid)
str=str{:}
s='a':'z'
for k=1:numel(s)
str=regexprep(str,s(k),num2str(k),'ignorecase');
end
str
Gova ReDDy
2014-4-9
更多回答（1 个）
Walter Roberson
2014-4-9
converted_to_numbers = characters - 'a' + 1;
Then it is just a matter of writing out the numbers as text, which you already know how to do.
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