Hi people, Maybe it is a trivial question for most of you, but I really could not find a way to solve my problem.
I am using the function quandlget(id::ASCIIString) from the library https://github.com/milktrader/Quandl.jl (a great contribution, by the way!) Everything works fine when I use it in a straightforward way: julia> mydat = quandl("GOOG/NASDAQ_GOOG",rows=100,format="DataFrame") 100x6 DataFrames.DataFrame | Row | Date | Open | High | Low | Close | Volume | |-----|------------|--------|--------|--------|--------|-----------| | 1 | 2015-07-08 | 521.05 | 522.73 | 516.11 | 516.83 | 1.2967e6 | | 2 | 2015-07-09 | 523.12 | 523.77 | 520.35 | 520.68 | 1.84235e6 | | 3 | 2015-07-10 | 526.29 | 532.56 | 525.55 | 530.13 | 1.95668e6 | or when I do: julia> myid = "GOOG/NASDAQ_GOOG" "GOOG/NASDAQ_GOOG" julia> typeof(myid) ASCIIString julia> mydat = quandl(myid,rows=100,format="DataFrame") 100x6 DataFrames.DataFrame | Row | Date | Open | High | Low | Close | Volume | |-----|------------|--------|--------|--------|--------|-----------| | 1 | 2015-07-08 | 521.05 | 522.73 | 516.11 | 516.83 | 1.2967e6 | | 2 | 2015-07-09 | 523.12 | 523.77 | 520.35 | 520.68 | 1.84235e6 | | 3 | 2015-07-10 | 526.29 | 532.56 | 525.55 | 530.13 | 1.95668e6 | However, I get an error when I read my data from an external file. Assume I have an ascii file containing only one line: $ echo "GOOG/NASDAQ_GOOG" > portfolio.txt $ cat portfolio.txt GOOG/NASDAQ_GOOG I just read the content of this file by using readdlm and try to use it to call the same function quandl, but it does not work. julia> myportfolio = readdlm("./portfolio.txt",'\n') 1x1 Array{Any,2}: "GOOG/NASDAQ_GOOG" julia> typeof(myportfolio[1]) SubString{ASCIIString} julia> mydat = quandl(myportfolio[1],rows=100,format="DataFrame") ERROR: MethodError: `quandlget` has no method matching quandlget(::SubString{ASCIIString}) I suppose the easiest way to solve this problem is to convert my SubString{ASCIIString} variable to ASCIIString. Am I right here? How can I do it? Does any of you have another suggestion? May be I could read my data in a different way instead of using readdlm? Thanks for any tip! best, Charles -- Um axé! :) -- Charles Novaes de Santana, PhD http://www.imedea.uib-csic.es/~charles
