Help in finding the matrix

2019 9 12
1 个回答
更新时间：2019 9 12
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0 个投票

Hello! I have a vector of values, and I need to find their location in the matrix
% 1000x100 matrix
% 1x100 data

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Adam Danz
Adam Danz 2019-9-12
编辑：Adam Danz 2019-9-12
Hint:
  • ismember()
  • find() (if you want subscripts)
Lev Mihailov
Lev Mihailov 2019-9-12
X=[1 2 3 4 5 6 7
112 123 123 124 216 125 125
1 2 3 4 5 6 229]
Y=[112 123 123 124 216 125 229]
I took part of the code as it looks
Adam Danz
Adam Danz 2019-9-12
Now try to apply my hint. The documentation will help you understand how each function works.
Andrei Bobrov
Andrei Bobrov 2019-9-12
In this case, what result do you expect?
Lev Mihailov
Lev Mihailov 2019-9-12
Z=ismember(Y,X);
When used along the entire length of the file, it produces a logical and all values ​​= 1
Adam Danz
Adam Danz 2019-9-12
That's because all element of Y are indeed in X. Try it the other way around. X as the first input.

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回答（1 个）

J Chen
J Chen 2019-9-12

0 个投票

You can use [row,col]=find( ) to get the location and use == to compare numbers

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J Chen
J Chen
2019-9-12

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