can trend stationary models be inferred do trend stationary series require a trend model what is stationary trend can trend stationary series be modeled can a trend stationary series be modeled what type of series can be used in arima can trend series be considered stationary can trend trend series be used in arima? what does model stationary mean can trend stations be used in arima can trend stationary series be modeled in arima can trending be modeled in arima if trend is stationary can trend be modeled in arima what is the stationary requirement of a trend is trend stationary or trend constant can trend stationary series be modeled with arima model can trend stationary series of data be modeled? what model is a trend stationary in? how do trend stations need to be modeled can a trend stationary series be modeled with rima