MATLAB: Replace multiple values

multiple values to onereplace

Hi everyone I need to replace multiple values to one but when using strrep function I have to do this many times and specify oldSubstr one at a time, is there a method to do this in a more convinient way.

Best Answer

use function regexprep

eg:

c = {'c:\cookies.m'; ...
           'c:\candy.m';   ...
           'c:\calories.m'};
d = regexprep(c, {'co' 'can' 'cal'}, 'N_')

Related Solutions

MATLAB: Spitting up a character

Try doing it in two passes, one to add a comma before, another to add one after:

c = '1357320676222345'
c = regexprep(c, '([26]\d)', ',$1')
c = regexprep(c, '([26]\d)[^,]', '$1,')

The first regexprep adds a comma before each instance, the second adds one after, so long as there is not one already present.

Check that this is actually the behaviour you want (how '62' should be treated, whether you want commas at the beginning or end of the character sequence, etc.)

MATLAB: How to efficiently replace data in data sets where I want to find a value in the data that is in one array and replace it with the data in the same position in another array.

You can use a single loop with find function:

a = 1:10;
b = 11:20;
c = 1:2:10;
for i = 1:length(c)
    index = find(c(i) == a);
    c(i) = b(index);    
end

Best Answer

Related Solutions

MATLAB: Spitting up a character

MATLAB: How to efficiently replace data in data sets where I want to find a value in the data that is in one array and replace it with the data in the same position in another array.

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