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how to find matching elements of two colums vectors

Asked by Mohammad Shafiq Khan on 12 Jun 2019
Latest activity Commented on by Mohammad Shafiq Khan on 12 Jun 2019
if i have a two column vectors generated from a figure like from apple. how can i combine them the matching elements using matlab. plz guide me

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1 Answer

Answer by M
on 12 Jun 2019
Edited by M
on 12 Jun 2019

It depends what you want exactly.
Let's say you have two vectors a and b:
a=[1;2;3;4];
b=[0;2;3;5];
To find the indices where a equals to b, you can simply compute:
a == b
ans =
4×1 logical array
0
1
1
0
To get the values and the indices where a equals to b, you can also have a look at the find function.

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Thanks for community support. let me phrase my questions with more detail
lets suppose i have vertices of a tea cup.
Vx =[ 0;1;2;0;9]
Vy = [1;1;,2;;3]
Vz= = [38,32,-1]
They are cancatenated in a larger matrix = [Vx Vy Vz].
After sorting, i want to find first elements or coordinates like (0,1,38) here in Vx,Vy,Vz wherever they meet or match, it should be labelled as 5 in that particular grid.
Your guidance will be highly appreciated.
regards

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