Write stl class to data.frame and/or csv

Question

I used the STL function in the {stats} package to seasonally detrend some time series data.

I would now like the results exported to csv, but when I try

write.csv(mySTLdata, "mySTLdata.csv")

I get the error

Error in as.data.frame.default(x[[i]], optional = TRUE, stringsAsFactors = stringsAsFactors) : 
  cannot coerce class ""stl"" to a data.frame

If I try to just convert the STL to a data.frame, it again tells me it cannot be coerced into one.

Any ideas on how I can get this out of the R environment for use elsewhere?

Answer 1

Going to leave this for anyone else who needs it in the future, but I figured it out.

To coerce an stl class into a data.frame, simply:

mySTLdata.DF <- as.data.frame(mySTLdata$time.series)

I was leaving off the $time.series part.