Creating an ordered list of vectors

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].

 Accepted Answer

Walter Roberson
Walter Roberson on 31 May 2011
Please do not do that. Please read this FAQ

3 Comments

the problem is I need each vector to do a different task. I was trying to avoid having to creating higher ordered arrays. I'll work it out tho!
Generating full variable names is nearly always trouble. Use cell arrays or use a structure with dynamic field names.
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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More Answers (2)

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 on 31 May 2011
v=perms(1:4);
Now instead of having v1,v2... you have v(1),v(2)...

1 Comment

Why PERMS? The OP looks for v1=[1,2,3,4] etc.

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