`write_xpt` does not allow file names with `-` or leading numbers

[RagavRajan]

df <- data.frame(A = c(1, 2, 3), B = c('a', 'b', 'c'))
  A B
1 1 a
2 2 b
3 3 c

write_xpt(df, "simple-df.xpt")
Error: Failed to create file: A provided name contains an illegal character.

write_xpt(df, "001_simple.xpt")
Error: Failed to create file: A provided name begins with an illegal character.

[gowerc]

This is expected behaviour (kinda); The xpt format forces you to provide a name for your dataset to be stored internally within the file and by default write_xpt() sets it to be the same as the filename (minus the extension) however numbers are not allowed to be the first character and dashes can't be included at all.

Instead you just need to provide an explicit name that obeys the rules to avoid this problem:

df <- data.frame(A = c(1, 2, 3), B = c('a', 'b', 'c'))

write_xpt(df, "simple-df.xpt", name = "simple_df")
write_xpt(df, "001_simple.xpt", name = "simple001")

[RagavRajan]

It works @gowerc. Thank you!