How to split an array based on the maximum number?

2021 2 2
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更新时间：2021 2 2
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Hi
How can I split this array so that the 3000s would be in a different array and the 2000s would be in a different one. I know I can just use indexes to do it but I was wondering if there is a general method for it, so that no matter what the values are it would be able to sort it based on the most left handed number(so into 3,2,1) etc.

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Rik
Rik 2021-2-2

1 个投票

You can use the function below to find the first digit of positive values, which you can then use to group your data.
f=@(x)floor(x./(10.^floor(log10(x))));

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Rik
Rik
2021-2-2

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