if `a = sort(unique(dane[:,4])[3])`, what is `(a, typeof(a))`?
On Friday, November 25, 2016 at 3:35:21 AM UTC-5, program...@gmail.com wrote:
> How to convert Char to Float? What wrong ?
>
> julia> eltype(sort(unique(dane[:,4]))[3])
> Char
>
> julia> (sort(unique(dane[:,4]))[3])
> "-.097"
>
> julia> convert(Float64(sort(unique(dane[:,4]))[3]))
> ERROR: MethodError: `convert` has no method matching convert(::Type{Float64},
> ::UTF8String)
> This may have arisen from a call to the constructor Float64(...),
> since type constructors fall back to convert methods.
> Closest candidates are:
> call{T}(::Type{T}, ::Any)
> convert(::Type{Float64}, ::Int8)
> convert(::Type{Float64}, ::Int16)
> ...
> in call at essentials.jl:56
>
> paul
