MATLAB: How to remove certain characters from a string in a file

filestrings

how to remove certain characters from a string based on some condition ie i have a text in a file '32/4/5' i want to retain only 32 and delete rest .my condition is if a '/' is identified then rest characters should be deleted .

Best Answer

Similar to @Srinivas, you could try

str = '32/4/5';
str = regexprep(str,'/.*','');

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You could use a regular expression. Assuming all the numbers you want to extract are integer:

str = 'c={ 4 of 5 stars, 5 of 5 stars, 5 of 5 stars, 3 of 5 stars, 3 of 5 stars, 4 of 5 stars}';
starcount = str2double(regexp(str, '\d+(?= of)', 'match'))

The regular expression matches any sequence of digit immediately followed by ' of'.

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myStr = '[1,2,3, 5:7]'
out=evalin('base',myStr)

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