Find three in a row

Question

Nathan Formby 2020-4-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/520283-find-three-in-a-row

回答： Raunak Gupta 2020-4-30

I am creating a randi function that finds three of the same number horizontally, vertically, or diagonally.

But I can't figure out the code to find what I need.

Help?!?!?!

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Rik 2020-4-23

编辑：Rik 2020-4-23

What have you tried so far? Do you have code that will generate an appropriate array? Do you have any ideas for how to check if any positions satisfy your needs? Bad ideas can be used to find better ideas.

As with your previous question you have forgotten to actually ask a question. Follow the link that was posted there.

Raunak Gupta 2020-4-28

Hi,

Can you share the code you have written so far so that we can help with any error you are getting.

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Answer 1

Raunak Gupta 2020-4-30

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https://ww2.mathworks.cn/matlabcentral/answers/520283-find-three-in-a-row#answer_429345

Hi,

You can take a look at Image Analyst Answer for creating a random number generator.

As from the question I assume you are more interested in getting pattern detected in rows, columns and diagonal of a matrix. For that you can check the frequency of each number, rows wise, column wise and on two diagonals of a matrix. You can start with using groupcounts that is mentioned in this answer. From this getting counts for each row can be done by using for loop. After getting group count you can check which number has a frequency of 3 and return it as an answer.