I tried to run the example that I found in the README.md of Gadfly and got the following error when I tried to load the R dataset:
julia> mammals = data("MASS", "mammals")
ERROR: type IOBuffer has no field ios
in extract_string at /home/theodore/.julia/DataFrames/src/io.jl:29
in read_separated_line at /home/theodore/.julia/DataFrames/src/io.jl:152
in determine_column_names at /home/theodore/.julia/DataFrames/src/io.jl:245
in read_table at /home/theodore/.julia/DataFrames/src/io.jl:380
in data at /home/theodore/.julia/RDatasets/src/data.jl:14
I tried to run the example that I found in the README.md of Gadfly and got the following error when I tried to load the R dataset: