I have a matrix that contains strings and i have to find words in it.
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Ziyad Azouny
on 19 Feb 2020
Commented: Ziyad Azouny
on 6 Mar 2020
I have to create a program that gives you the position of the first letter of the word you input and if it's from left to right or right to left.
for example if you input the word 'er' it should tell you that:
The word was found from left to right at the position (1,1)
Please help
['e' 'r' 'd' 'u' 'o' 'p' 'i' 'e' 'c' 'e';...
't' 'p' 'r' 'o' 'm' 'e' 't' 'a' 'l' 'l';...
'i' 's' 'd' 'p' 's' 't' 'u' 'b' 'a' 'a';...
'g' 'e' 'p' 'o' 'm' 's' 'i' 'c' 'm' 'v';...
's' 't' 'e' 'i' 'u' 'r' 'a' 't' 'e' 'a';...
'o' 't' 'n' 'n' 'c' 'b' 'c' 'b' 'r' 'g';...
'u' 'e' 'f' 'c' 't' 'e' 'l' 'u' 'l' 'e';...
'v' 'l' 'i' 'o' 'r' 'b' 'r' 'o' 'i' 'e';...
'e' 'l' 'e' 'n' 'u' 'u' 'i' 'r' 'n' 't';...
'r' 'i' 'v' 'i' 'e' 'r' 'e' 'j' 'g' 'a';...
'a' 'a' 'r' 'n' 'e' 'l' 'r' 'r' 'o' 'c';...
'i' 'p' 'e' 'c' 'a' 'r' 'a' 't' 't' 'u';...
'n' 't' 'e' 'g' 'a' 'i' 'l' 'l' 'a' 'd';...
'f' 'i' 'l' 'o' 'n' 'o' 'l' 'a' 't' 'e']
2 Comments
Mil Shastri
on 19 Feb 2020
Hi Ziyad, could you rephrase your question. It's not very clear.
Also, consider checking out a previous discussion: https://www.mathworks.com/matlabcentral/answers/231706-finding-position-of-a-string-in-a-cell-array
Stephen23
on 3 Mar 2020
Edited: Stephen23
on 3 Mar 2020
The character array shown in the question can be written more simply as:
['erduopiece';...
'tprometall';...
'isdpstubaa';...
'gepomsicmv';...
'steiuratea';...
'otnncbcbrg';...
'uefctelule';...
'vliorbroie';...
'elenuuirnt';...
'rivierejga';...
'aarnelrroc';...
'ipecarattu';...
'ntegaillad';...
'filonolate']
or:
['erduopiece';'tprometall';'isdpstubaa';'gepomsicmv';'steiuratea';'otnncbcbrg';'uefctelule';'vliorbroie';'elenuuirnt';'rivierejga';'aarnelrroc';'ipecarattu';'ntegaillad';'filonolate']
Accepted Answer
Jalaj Gambhir
on 3 Mar 2020
Hi,
matrix = ['a','b','d','f';
'c','t','a','g';
'f','a','n','p';
'd','b','a','b'];
word = 'ab';
for i=1:length(matrix)
str = matrix(i,:);
idxL2R = strfind(str,word);
idxR2L = strfind(str,flip(word));
result = ['for string = ',str,' indexL2R while searching for word = ',word,
' is = ',int2str(idxL2R), ' indexR2L is = ', int2str(idxR2L)];
disp(result);
end
2 Comments
Jalaj Gambhir
on 3 Mar 2020
Result:
for string = abdf indexL2R while searching for word = ab is = 1 indexR2L is =
for string = ctag indexL2R while searching for word = ab is = indexR2L is =
for string = fanp indexL2R while searching for word = ab is = indexR2L is =
for string = dbab indexL2R while searching for word = ab is = 3 indexR2L is = 2
More Answers (1)
Stephen23
on 3 Mar 2020
>> mat = ['erduopiece';'tprometall';'isdpstubaa';'gepomsicmv';'steiuratea';'otnncbcbrg';'uefctelule';'vliorbroie';'elenuuirnt';'rivierejga';'aarnelrroc';'ipecarattu';'ntegaillad';'filonolate'];
>> baz = @(r,c)[r*ones(numel(c),1),c(:)];
>> vec = num2cell(1:size(mat,1));
>> fun = @(s)cell2mat(cellfun(baz,vec(:),strfind(num2cell(mat,2),s),'uni',0)).';
>> str = 'er';
>> fprintf('The word was found from left to right at the position (%u,%u)\n',fun(str))
The word was found from left to right at the position (1,1)
The word was found from left to right at the position (10,5)
>> fprintf('The word was found from right to left at the position (%u,%u)\n',fun(fliplr(str)))
The word was found from right to left at the position (10,6)
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