what is `a` and `typeof(a)` where `a = sort(unique(dane[:,4]))[3])`
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