Make rows of square bracket data

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Martin
Martin 2018-5-2
编辑： jonas 2018-5-2
I have some data that looks like this string:
A='[[1,2,3,4,5,6],[6,5,4,3,2,1],[4,4,4,4,4,4],[9,9,9,9,9,9]]'
6 numbers in each square brackets. The data can be huge. I would like to achieve the following result:
1 2 3 4 5 6
6 5 4 3 2 1
4 4 4 4 4 4
9 9 9 9 9 9
So in this case I would prefer to receive a 4x6 double. I tried a couple of things with reshape(), but with no luck. Any ideas?
Thanks

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jonas
jonas 2018-5-2
编辑：jonas 2018-5-2
A=str2num(A)
reshape(A,[6 4])'

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