Fitting model of ARMAX

General
1

Please help!
Error in auto.arima(tlkm_arimax[, "tlkm_return"], xreg = tlkm_arimax[, :
xreg should be a numeric matrix or a numeric vector

for this query

Fit the model

(fit <- auto.arima(tlkm_arimax[, "tlkm_return"],
xreg = tlkm_arimax[, "nasdaq_return"]))

2

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