import("graphics","stats","zoo","lubridate","grDevices")
export(
  "nixmass",
  "swe.delta.snow",
  "swe.jo09",
  "swe.pi16",
  "swe.st10",
  "swe.gu19"
)

## methods 
S3method("plot", "nixmass")
S3method("summary", "nixmass")






