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Logical Manipulation of Vector

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John
John 2011-9-5
I require a logical vector with 'a' number of rows =1 and followed by 'b' rows =0. How can I create this without if statements?
I know a and b.
  3 个评论
显示 1更早的评论
Oleg Komarov
Oleg Komarov 2011-9-5
He intended b rows of logical zeros.
Paulo Silva
Paulo Silva 2011-9-5
thanks Oleg :) now I understand.

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采纳的回答

Oleg Komarov
Oleg Komarov 2011-9-5
a = 10;
b = 20;
lg = [true (a,1)
false(b,1)];

更多回答（2 个）

Daniel Shub
Daniel Shub 2011-9-5
[true(a, 1); false(b, 1)]
Walter Roberson
Walter Roberson 2011-9-5
Something like,
kron([true;false],[a;b])
Unfortunately I cannot reach my server today to test this.
  2 个评论
Oleg Komarov
Oleg Komarov 2011-9-5
It could have been the most elegant, although with some overhead but the result is:
ans =
10
15
0
0
Walter Roberson
Walter Roberson 2011-9-6
I usually get kron() wrong the first few times... :(

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