how to specify pulses in r r can i specify pulses in aperiod how to specify pulses how to use pulses in r how to specify pulse shifts r can you use periodic pulses in r how to specify pulse level shifts in r how to specify the pulse in arima how to specify pulses r arima how to get pulses how to specify pulses in arima how to specify pulses what arima function do you use for seasonal time why do we need periodic pulses in r how to specify pulses in arima r how to set pulses how to specify seasonal pulses in r i want to specify pulses in arima in r model how to specify pulses in arima data where do seasonal pulses in r appear