Re: [julia-users] DataArray Concatenation

Here’s a supported way to do this operation. — John julia> using DataArrays julia> a=@data([NA,3,5,7,NA,3,7]) 7-element DataArray{Int64,1}: NA 3 5 7 NA 3 7 julia> b = copy(a) 7-element DataArray{Int64,1}: NA 3 5 7 NA 3 7 julia> pop!(b) 7 julia> unshift!(

[julia-users] DataArray Concatenation

a=@data([NA,3,5,7,NA,3,7]) i want to do this: b=[NA,a[1:end-1]] but julia says no convert methods. is there anyone know some other ways?