how to concatenate numbers from multiple cells into a single number?

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Daniel Foster 2018-3-28

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https://ww2.mathworks.cn/matlabcentral/answers/391285-how-to-concatenate-numbers-from-multiple-cells-into-a-single-number

评论： Kai Domhardt 2018-3-28

I have a set of data a = [1 0 1 0 0 1 1 1 0 0] and I would like to turn it into something like n = 1010011100

a is a row vector of varying dimension.

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Answer 1

Kai Domhardt 2018-3-28

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https://ww2.mathworks.cn/matlabcentral/answers/391285-how-to-concatenate-numbers-from-multiple-cells-into-a-single-number#answer_312461

在 MATLAB Online 中打开

This should do what you need:

n = sum(a.*10.^[length(a)-1:-1:0])

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Daniel Foster 2018-3-28

Thanks,

I should have mentioned though that 'a' will have in the hundreds of elements. This code ceases to return the correct values for arrays larger than 50~ elements.

Kai Domhardt 2018-3-28

Then you can use David Fletchers answer by storing it as char string. But will not be able to losslessly store n as a numerical (assuming you would use uint64) if the length of a exceeds 20, since intmax('unit64') == 18446744073709551615 == 1.8447e+19

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