haven-spss.md
In haven: Import and Export 'SPSS', 'Stata' and 'SAS' Files

complain about long factor labels

Code
  x <- paste(rep("a", 200), collapse = "")
  df <- data.frame(x = factor(x))
  write_sav(df, tempfile())
Condition
  Error in `write_sav()`:
  ! SPSS only supports levels with <= 120 characters.
  x Problems: `x`

complain about invalid variable names

Code
  df <- data.frame(a = 1, A = 1, b = 1)
  write_sav(df, tempfile())
Condition
  Error in `write_sav()`:
  ! SPSS does not allow duplicate variable names.
  i Variable names are case-insensitive in SPSS.
  x Problems: `a` and `A`
Code
  names(df) <- c("$var", "A._$@#1", "a.")
  write_sav(df, tempfile())
Condition
  Error in `write_sav()`:
  ! Variables in `data` must have valid SPSS variable names.
  x Problems: `$var` and `a.`
Code
  names(df) <- c("ALL", "eq", "b")
  write_sav(df, tempfile())
Condition
  Error in `write_sav()`:
  ! Variables in `data` must have valid SPSS variable names.
  x Problems: `ALL` and `eq`
Code
  names(df) <- c(paste(rep("a", 65), collapse = ""), paste(rep("b", 65),
  collapse = ""), "c")
  write_sav(df, tempfile())
Condition
  Error in `write_sav()`:
  ! Variables in `data` must have valid SPSS variable names.
  x Problems: `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` and `bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb`