comparing strings in alphabetical order
17 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I'm trying to see the which of the input of 2strings(x1,x2) come first alphabetically.(e.g if x1 comes first it will return 1, if x2 comes first it will return -1..)
they need to be in a same length otherwise it doesn't work which is why I did 'MaxLength'.Also I got rid of the blanks in between if it's a sentence.
but I'm trying to compare the ASCII code of each string (a=97) and see which one comes first.
i did this so far but it just won't work.
x1= lower(input('Enter a string: ','s'));
x2= lower(input('Enter a string: ','s'));
x1 = strrep(x1,' ','')
x2 = strrep(x2,' ','')%string replacement
x1_d=double(x1)
x2_d=double(x2)
x1_length=length(x1)
x2_length=length(x2)
maxLength = max([length(x1_d), length(x2_d)])
x1_d(length(x1_d)+1:maxLength) = 0
x2_d(length(x2_d)+1:maxLength) = 0
if x1_d<x1_d
disp('x1 alphabetically procedure x2')
elseif x1_d>x2_d
disp('x2 alpha x1')
else
disp('same')
end
1 Kommentar
Antworten (2)
Stephen23
am 29 Mai 2019
Simpler and more robust:
S1 = 'banana';
S2 = 'apple';
[~,X] = sort({S1,S2})
Z = diff(X)
Guillaume
am 29 Mai 2019
Even simpler, use strings instead of char vector. Comparison operators work on the whole string instead of on characters
S1 = "banana"
S2 = "apple"
S1 < S2 %returns false
S2 == S2 %returns true
So with your code:
x1 = lower(input('Enter a string: ','s'));
x2 = lower(input('Enter a string: ','s'));
x1 = string(x1);
x2 = string(x2);
if x1 < x2
disp('x1 is before x2 alphabetically')
elseif x1 == x2
disp('x1 and x2 are identical')
else
disp('x1 is after x2 alphabetically')
end
0 Kommentare
Siehe auch
Kategorien
Mehr zu Characters and Strings finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!