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How to compare two arrays of strings?

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Luis Angel Manriquez Ramirez
评论： Stephen23 2022-11-28
Hi everyone! Currently I'm creating an with Appdesigner and I would like to compare some arrays of strings as follows:
Let's say I have two arrays:
A=['red','purple','blue','green'];
B=['orange','purple','yellow','green'];
I want to compare each element in array 'B' with array 'A'. If the element in B is diferent from A I want to save that element in a new array C and use a counter to count every element that is diferent from A.
This is what I would get after the comparison:
C=['orange','yellow']
counter=2
I hope someone can help. thanks for reading!
  1 个评论
Stephen23
Stephen23 2022-11-28
Ran in:
A=["red","purple","blue","green"];
B=["orange","purple","yellow","green"];
C = setdiff(B,A)
C = 1×2 string array
"orange" "yellow"

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采纳的回答

David Hill
David Hill 2022-11-15
Ran in:
Use string arrays instead of character arrays.
A=["red","purple","blue","green"];
B=["orange","purple","yellow","green"];
C=B(~ismember(B,A))
C = 1×2 string array
"orange" "yellow"
Look at what a charachter array looks like
A=['red','purple','blue','green']%it is all bunched together, the commas are meaningless
A = 'redpurplebluegreen'

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