outside save from loop

Hi @Varvara! Welcome!

Each iteration of your loop is overwriting d, instead of adding to it. So at the end of the loop, d has the value of the last time it was created (the last loop iteration). If you mean to be updating df, then you’d write:

df = rbind(df, df.smos.s1)

If you want your final combined object to be named d, then you’d change the line at the beginning to

d = NULL

And the later line to:

d = rbind(d, df.smos.s1)

As a note, it’s possible to do this sort of task in R without using a for loop (or, to be more precise, using functions whose underlying loops are written by somebody else, often in a more optimized way). The base R idiom here would be lapply() plus do.call(rbind, ...). In the tidyverse idiom, you’d use purrr::map_dfr().

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