[julia-users] question about array comparison

[K Leo]

julia> x
4x4 Array{Int64,2}:
 1  5   9  13
 2  6  10  14
 3  7  11  15
 4  8  12  16

julia> in(x[1,:], x)
false

julia> x[1,:]
1x4 Array{Int64,2}:
 1  5  9  13

How can I check if x[1,:] is in x easily?  And with the row index in x?