Reading vector elements into a string

I have a vector of numbers that I would like to use to create a filename. For example with a vector [1] I would like the filename temp0001.file. This is simply done by

filename = sprintf('%04d', vector);

This doesn't carry over once I append more elemnts to the matrix, for example [1,2] should result in temp0012.file but instead becomes temp0102.file. Is there another way to parse the vectors?

[Walter Roberson]

If [1,2] should produce 0012, then what should [1,12] produce ?

[Morten Nissov]

Sorry I have assumed the contents of the vector are integers >-1 and <10

Answer 1

[Walter Roberson]

temp = sprintf('%d', [0 0 0 0, vector]);
temp = temp(end-3:end);
filename = sprintf('temp%s.file', temp);

[Walter Roberson]

filename = sprintf('temp%04d.file', sum(vector .* 10.^(length(vector)-1:-1:0)));

Answer 2

[KSSV]

n = [1 2] ;  % your vector
v = sprintf('%.0f' , n) ;  % convert n to char 
filename = sprintf('%04d',str2num(v));