Time series and stl in R: Error only univariate series are allowed

Question

I am doing analysis on hourly precipitation on a file that is disorganized. However, I managed to clean it up and store it in a dataframe (called CA1) which takes the form a

Answer 1

If you apply dim() in co2 or AirPassengers it will return NULL. Thus, I suggest you to apply dim(rainCA1)<-NULL

It worked for me many times.