http://stackoverflow.com/a/29257879/1688185 (csv -> Torch7 tensor)

convert.lua

require 'torch'
-- pre-req: luarocks install csv
local csv = require "csv"

local inputs, labels = {}, {}

local f, i = csv.open("data.csv"), 0
for fields in f:lines() do
  if i > 0 then -- skip header
    inputs[i] = {unpack(fields, 1, 18)}
    labels[i] = fields[19]
  end
  i = i + 1
end

inputs = torch.Tensor(inputs)
labels = torch.Tensor(labels)