Compare string array columns for equality then display all non-equal rows

3 次查看（过去 30 天）
Vincent Scalfani
Vincent Scalfani 2018-7-15
回答： dpb 2018-7-15
Hello, I have 2 column string array data formatted like this:
x = ["1","2 2 0"; "2", "2 1 1"; "3", "1 1 0"; "4", "1 1 1"]
>>
"1" "2 2 0"
"2" "2 1 1"
"3" "1 1 0"
"4" "1 1 1"
y = ["1","x x x"; "2", "2 1 1"; "3", "1 1 0"; "4", "x x x"]
>>
"1" "x x x"
"2" "2 1 1"
"3" "1 1 0"
"4" "x x x"
I want to compare the second column for equality then display the entire rows that are different. So, first get the logical:
idx = x == y
>>
1 0
1 1
1 1
1 0
Now I am struggling to index back in (e.g. y(idx)) and display the non matching results like this for y:
"1" "x x x"
"4" "x x x"
and related:
for x
"1" "2 2 0"
"4" "1 1 1"
I'm only able to return a vertical 4 x 1 instead of 2 x 2. Thanks!

请先登录，再回答此问题。

采纳的回答

dpb
dpb 2018-7-15
>> y(x(:,2)~=y(:,2),:)
ans =
2×2 string array
"1" "x x x"
"4" "x x x"
>>

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

产品


版本

R2018a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by