Re: [julia-users] Re: how to replace , to . in Array{Any,2}:

[Paul Analyst]

It work, thx,
Paul
W dniu 2015-05-19 o 01:30, ele...@gmail.com pisze:

Strings are immutable, so replace can't change the existing string, so it returns a new string, so map returns a new array which you have to assign back to x

Cheers
Lex


On Tuesday, May 19, 2015 at 2:10:18 AM UTC+10, paul analyst wrote:

    Big thx, but after this code x is no changed
    Paul

    W dniu 2015-05-17 o 20:23, wil...@gmail.com <javascript:> pisze:

    map(e->replace(string(e), ',', '.'), x)

    On Saturday, May 16, 2015 at 2:40:05 PM UTC-4, paul analyst wrote:

        I have file with decimal separator lika ","
        x=readdlm("x.txt",'\t')

        julia> x=x[2:end,:]
        6390x772 Array{Any,2}:

        some kolumns looks :
        julia> x[:,69]
        6390-element Array{Any,1}:
         0.0
          "0,33"
          "0,72"
          "1,09"
          "0,95"
          "3,57"
          "2,27"
          "2,42"



        julia> replace(x[:,69],',','.')
        ERROR: `replace` has no method matching
        replace(::Array{Any,1}, ::Char, ::Char)

        julia> replace(string(x[:,69],',','.'))
        ERROR: `replace` has no method matching replace(::ASCIIString)


        how to replace , to . ?

        I can repalce all , to .

        Paul