MATLAB: Hi everybody , i’m a beginner and don’t know how can i convert ascii to a string

ascii

I have this matrix with ascii elements and i want to decode it's elements and transfom it into strings

Best Answer

A = [51 48 56 ; 73 48 71]
str = char(A) % conversion from ascii to character string

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MATLAB: Extract numbers from string in a cell

Hi,

you can use regexprep or some ascii value representation comparison to do so, e.g.

a = {'TT21abc.def'};
%ascii value comparison, char(48) = '0' and char(57) = '9'  
a{1}(a{1} <= 57 & a{1} >= 48)
%or use regexprep
regexprep(a{1},'\D','')

If you have a cell array with strings, I would use regexprep because it can handle cell arrays of strings as input

b = {'TT21abc.def'
    'sdfsdf34435afafsd.,.,3434'}
out =  regexprep(b,'\D','')

MATLAB: How to remove delimiters, or special characters from a cell

This is a great time for regular expressions! The commands are very similar in bash scripting as well, so it's a useful tool to learn.

%input string
str = '123345KR00994;#3;#160225MD0004;#2;#13161504900013;#1';
%split string in to cell array by delimiter ';#'
t = regexp(str,';#','split');
%put alphanumeric values along first row, order along second row
t = reshape(t,2,length(t)/2);
alphanumeric = t(1,:);
%convert order to array of numbers
indices = str2double(t(2,:));
%order alphanumeric values properly (already ordered in example string...)
alphanumeric = alphanumeric(length(alphanumeric) - indices + 1);

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MATLAB: Extract numbers from string in a cell

MATLAB: How to remove delimiters, or special characters from a cell

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