public List <string> ToLine(double t, double[] deltas, double tracking_error, double price, double cash) { List <string> line = new List <string>(); DateTime date = doubleToDate(t); line.Add(date.ToString("dd/MM/yyyy", CultureInfo.InvariantCulture)); line.Add(t.ToString()); line.Add(deltas[0].ToString()); line.Add(deltas[1].ToString()); line.Add(deltas[2].ToString()); line.Add(deltas[3].ToString()); line.Add(deltas[4].ToString()); line.Add(tracking_error.ToString()); line.Add(price.ToString()); foreach (var s in data.getSymbols()) { line.Add(data.GetClosestData(date, data.getData(s)).ToString()); } line.Add(cash.ToString()); return(line); }