Wrap conditional selection of dataframe into function

General Usage
, ,
2

I think it’s best to work with subset rather than @subset for this.

julia> conditions = [:a => ByRow(==(1)), :b => ByRow(==(2))]
2-element Vector{Pair{Symbol, ByRow{Base.Fix2{typeof(==), Int64}}}}:
 :a => ByRow{Base.Fix2{typeof(==), Int64}}(Base.Fix2{typeof(==), Int64}(==, 1))
 :b => ByRow{Base.Fix2{typeof(==), Int64}}(Base.Fix2{typeof(==), Int64}(==, 2))

julia> function fun(df, conditions)
           subset(df, conditions)
       end;