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Creating an ordered list of vectors

조회 수: 19 (최근 30일)
Zach
Zach 2011년 5월 31일
I'm looking to create a list of vectors arbitrary in length. I was looking for something along the lines of: iterations=___ % some arbitrary number
for i=1:iterations vi=[1 2 3 4]; end
Hoping this would create the vectors v1, v2, v3, v4 ... which are all the same vector [1 2 3 4].

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Walter Roberson
Walter Roberson 2011년 5월 31일
Please do not do that. Please read this FAQ
  댓글 수: 3
Walter Roberson
Walter Roberson 2011년 5월 31일
Generating full variable names is nearly always trouble. Use cell arrays or use a structure with dynamic field names.
Walter Roberson
Walter Roberson 2011년 5월 31일
T1 = cellstr(num2str((1:iterations).','v%d')).';
T2 = repmat({[1 2 3 4]},1,iterations);
T = [T1;T2];
VVars = struct(T{:});
Then use VVars.v1, VVars.v2, VVars.(sprintf('v%d',192)) and so on.

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추가 답변 (2개)

Jan
Jan 2011년 5월 31일
Use a CELL instead:
v = cell(1, iterations);
v(:) = {1:4}
Now you can use v{1} instead of v1. It is always better (nicer, safer, faster) to use an index as index, instead of hiding the index in the name of the variable.

Paulo Silva
Paulo Silva 2011년 5월 31일
v=perms(1:4);
Now instead of having v1,v2... you have v(1),v(2)...
  댓글 수: 1
Jan
Jan 2011년 5월 31일
Why PERMS? The OP looks for v1=[1,2,3,4] etc.

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