Updating variable after each loop iteration

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Dinh Phuc Nguyen
Dinh Phuc Nguyen 2022-4-25
评论： Dinh Phuc Nguyen 2022-4-25
Hello everyone, I am almost new in matlab. I am trying to update my variable according to user's input. I want every letter I entered match with the generated_word, the letter will earse; in such way that promt(1)='m' will give newChr(1)='atlabcounity'; promt(2)='a' will give newChr(2)=tlbcounity'; promt(3)='t' will give newChr(3)='lbcouniy' and so on.
Here is the code that I have tried to run but its not working in my favor:
generated_word='matlabcommunity'
promt=[]:
newChr=[];
for i=1:length(generated_word)
promt(i)=input("Enter: ",'s');
% delete the correct input's letters from the generated word
newChr=erase(generated_word,promt(i));
disp(newChr)
if promt == 'x'
break
end
end
disp(newChr)

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采纳的回答

Walter Roberson
Walter Roberson 2022-4-25
generated_word='matlabcommunity'
promt = strings(0):
newChr=[];
for i=1:length(generated_word)
promt(i)=input("Enter: ",'s');
if promt(i) == 'x'
break
end
% delete the correct input's letters from the generated word
newChr=erase(generated_word,promt(i));
disp(newChr)
generated_word = newChr;
end
disp(newChr)
Caution: your code has a bug for the case where the input word contains the same letter multiple times.
  2 个评论
Walter Roberson
Walter Roberson 2022-4-25
Ran in:
generated_word='matlabcommunity'
generated_word = 'matlabcommunity'
erase(generated_word, 'm')
ans = 'atlabcounity'
Notice that "erase" removes all occurances of the same letter. If you want to remove only the first occurence then either you should use a different function, or else you should arrange so that the bit to be erased matches only one place, by carefully generating a patternarray() such as by using anchors. You might want to reconsider using erase(). For example
regexprep(generated_word, 'm', '', 'once')
ans = 'atlabcommunity'
Dinh Phuc Nguyen
Dinh Phuc Nguyen 2022-4-25
Thank you for your help!!! I'm very much appreciate this!!

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更多回答（1 个）

KSSV
KSSV 2022-4-25
generated_word='matlabcommunity' ;
newChr=[];
promt = cell(length(generated_word),1) ;
for i=1:length(generated_word)
promt{i}=input("Enter: ",'s');
% delete the correct input's letters from the generated word
newChr=erase(generated_word,promt{i});
disp(newChr)
if strcmp(promt{i},'x')
break
end
end
disp(newChr)
  1 个评论
Dinh Phuc Nguyen
Dinh Phuc Nguyen 2022-4-25
Thank you for answearing my question, but the code is not really updated the genereated_word every iteration like promt(1)='m' will give newChr(1)='atlabcounity'; promt(2)='a' will give newChr(2)=tlbcounity'

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