Can anyone help with code for this problem

How do you write code to find row/column of first time a number appears in matrix
Eg for [ 1 2 2; 3 3 5;6 6 7; 5 3 3;4 5 4]
The first time 4 appears is in the first column of the fifth row. Is there a way to code for this to solve this in a massive matrix?

回答(1 个)

unique() with first and second outputs and 'first' option.
The first output will be a list of values. The second will be the corresponding linear index.
You might want to ind2sub() the linear indices.

此问题已关闭。

提问:

2020-1-8

关闭:

2021-8-20

Community Treasure Hunt

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

Start Hunting!

Translated by