Sorry but I feel there is some misinterpretation. We have not deleted any rows rather than we have imputed using “na.kalman” of library “imputeTS” using “auto.arima” model. There were lot of missing rows and many time interval were missing.

Yep, It wont give the predictions for the dates because it will give 5 day predictions of all cryptocurrencies starting from 25th Jan 2018. But we can predict for the given dates by varying the value of k. That’s how we predicted 30th Jan.