r - Auto Arima for multiple time series -

i have weekly(2015 jan 2017 apr) sales data multiple products. trying use auto arima predict future. keep getting output na many products. sample code. can please went wrong in code.

data1 <- ts(r_input_stats[,-1],f=52,s=2015+2/52) h <- 25 ns <- ncol(data1) arimaforecast <- matrix(na, nrow=h, ncol=ns) (i in 1:ns){   arimaforecast[,i] <- forecast(auto.arima(data1[,i]), h=h,)$mean} write(t(arimaforecast),file="r_output_stats_arimaallskus.csv",sep=",",ncol=ncol(arimaforecast)) 

can replace above "for loop" "lapply"?and if want know order of auto arima each product ? reply sample data sample data

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