gistfile1.txt

#r @"Deedle.0.9.12\lib\net40\Deedle.dll"
#r @"Deedle.RPlugin.0.9.12\lib\net40\Deedle.RProvider.Plugin.dll"

open Deedle
open Deedle.RPlugin

let codesSeries = 
    Series(
        countries |> Seq.map (fun c -> c.Code) |> Seq.toList,
        countries |> Seq.map (fun c -> c.Code) |> Seq.toList)

let pop2010Series = 
    Series(
        countries |> Seq.map (fun c -> c.Code) |> Seq.toList,
        countries |> Seq.map (fun c -> c.Indicators.``Population (Total)``.[2010]) |> Seq.toList)

let pop2000Series = 
    Series(
        countries |> Seq.map (fun c -> c.Code) |> Seq.toList, 
        countries |> Seq.map (fun c -> c.Indicators.``Population (Total)``.[2000]) |> Seq.toList)

let deedleFrame = Frame(["Codes"; "Pop 2000"; "Pop 2010" ], [ codesSeries; pop2000Series; pop2010Series])
let rFrame = R.as_data_frame(deedleFrame)

rFrame.Print()

The issue is that the last release does not handle spaces in column names. So using Pop2010 and Pop2000 will make it work.

Also, the Series and Frame constructors are maybe not the best way to create them. I much prefer using series and frame functions:

let pop2010Series = 
  series [ for c in countries -> c.Code => c.Indicators.``Population (Total)``.[2010] ]
let pop2000Series = 
  series [ for c in countries -> c.Code => c.Indicators.``Population (Total)``.[2000] ]
let deedleFrame = frame [ "Pop2000" => pop2000Series; "Pop2010" => pop2010Series ]

deedleFrame?Codes <- deedleFrame.RowKeys
let rFrame = R.as_data_frame(deedleFrame) 
rFrame.Print()