I have a vector A consisting of 200 elements, and I need to create new vectors made of elements of A that are bigger than a particular threshold but I need these new vectors to be named different from each other as to carry some procedure on them.

I have a vector A consisting of 200 elements, and I need to create new vectors made of elements of A that are bigger than a particular threshold but I need these new vectors to be named different from each other as to carry some procedure on them.

Answer 1

[Azzi Abdelmalek]

A=[ 1 4 58 8 10]
B=A(A>4)

[Mark Smith]

Thanks, but I am creating a loop where I have different threshold and thus obtaining different vectors B, my problem is that is need to name each vector B differently so as to refer to it later on.

[Azzi Abdelmalek]

This is not clear. explain with an example

[Mark Smith]

I have Z=[6 7 8 5 6 7 8 3 2 4]' vector

for i=1:10;
  A(i) =Z(Z>Z(i));
end

For some reason its not working

[James Tursa]

It is not working because A(i) is presumably a scalar (you don't define A) but the result of Z(Z>Z(i)) is in general a vector. If you use cell arrays per my advice below you could do this:

A = cell(10,1);
for i=1:10;
  A{i} =Z(Z>Z(i));
end

Then downstream you can access A{i} in a loop easily.

[Azzi Abdelmalek]

Z=[6 7 8 5 6 7 8 3 2 4]'  
A=cell(size(Z));
for i=1:10;
  A{i} =Z(Z>Z(i));
end
celldisp(A)

Answer 2

[James Tursa]

Don't do that. Use cell arrays instead, which are much easier to maintain and access in a loop. See this link:

http://www.mathworks.com/matlabcentral/answers/143-how-do-i-make-a-series-of-variables-a1-a2-a3-a10