[julia-users] convert Array{Float,1} to Array{Float,2)?

[michael . creel]

I have a function that expects a Matrix argument, but for the case I'm 
working on, the natural way to construct the argument gives a vector. So, 
suppose I have a vector, e.g., a=rand(10). What is the best way to convert 
this to a 10X1 array? I can do it using a loop, but I thought there might 
be a built-in convertor, which I fail to find.
Thx