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