warning message for unused lists

[dashaub]

See below:

trainSet <- beaver1[1:100, ]
testSet <- beaver1[-(1:100), ]
trainXreg <- data.frame(trainSet$activ)
testXreg <- data.frame(testSet$activ)

beaverhm <- hybridModel(trainSet$temp,
                        models = "aest",
                        a.args = list(xreg = trainXreg),
                        n.args = list(xreg = trainXreg),
                        s.args = list(xreg = trainXreg))
forecast(beaverhm, xreg = testXreg)

Warning message:
In hybridModel(trainSet$temp, models = "aent", a.args = list(xreg = trainXreg), :
stlm was not selected in the models argument, but s.args was passed. Ignoring a.args