How does one produce an array of strings automatically?

I wish to produce an array/vector of strings to use as InputNames and OutputNames on a dynamical system model in something like the following manner (note that the below doesn't work, but illustrates what I'm looking for):

n = 5;
stringVector = {'v' num2str(n)};

in order to produce a vector of strings as such:

stringVector = {'v1', 'v2', 'v3', 'v4', 'v5'}

How can this be done?

Thanks, Olie

Answer 1

[Mischa Kim]

Oliver, you could do

 n = 5;
 for ii = 1:n
   stringVector{ii} = strcat('v',int2str(ii));
 end

or simply

 stringVector = strcat({'v'},int2str((1:5)'));

[Oliver]

Thank you both, these both look like good approaches - I then also need to take multiple vectors of strings and concatenate them - but this gives me a cell type (not sure if this is correct).

So something like:

for i = 1:5;
vec1{i} = strcat('v1',num2str(i));
end
for i = 1:5;
vec2{i} = strcat('v2',num2str(i));
end
totalVec = {vec1, vec2}

just to result in one vector, totalVec, which is just a list of all the elements of vec1 and vec2.

When I do this it gives something like:

 totalVec = 

    {1x5 cell}    {1x5 cell}

Is this correct? Will it just act like a normal string vector?

Thanks.

[Sean de Wolski]

Perhaps you want:

 T = vertcat(totalVec{:})

[Oliver]

Oh - I've just discovered, given two vectors of strings, vec1, and vec2, you can produce a concatenation of these vectors with

 totalVec = [vec1,vec2]

Thanks for all the help.

Answer 2

[Jan]

There is an undocumented but extremely efficient function for this job:

stringVector = sprintfc('v%d', 1:5)

Answer 3

[Sean de Wolski]

And a documented one liner:

x = strcat('v',cellstr(num2str((1:5).')))

[Walter Roberson]

x = cellstr(num2str((1:5).', 'v%d'));