[R-SIG-Finance] blotter tradeStats Profit.factor is Infinite ?

[ce]

My test program gives in tradeStats output some Profit factors as  Inf  .  I guess because Gross.Losses are zero .
Is it normal or am I doing something wrong ?

     Med.Trade.PL Largest.Winner Largest.Loser Gross.Profits Gross.Losses
ABTL   270.967742      270.96774       0.00000     270.96774      0.00000

     Std.Dev.Trade.PL Percent.Positive Percent.Negative Profit.Factor
ABTL               NA        100.00000          0.00000           Inf