[julia-users] How to choose from the array to the new array only selected columns?

[paul analyst]

a =rand(5,5)
b=slicedim(a,2,1,3,5)
ERROR: no method slicedim(Array{Float64,2}, Int64, Int64, Int64, Int64)

how to choose from matrix a column 1,3,5 wihout while etc.?
Paul