Re: [julia-users] Extending a DataFrame (or, why aren't my imports working?)

[kevin . dale . smith]

I did get it working using “import DataFrames: index, …”, but not with 
“using DataFrames” + “DataFrames.nrow”, at least in my simple test case. 
 Doing the same thing in my actual application still didn’t work.  Is there 
some place where this concept of writing methods for abstract types is 
documented?  I feel like I’m missing some concept.