Read a Stata file

Reads a Stata .dta file through TDA's rstata, which supports releases 4, 6, 7 and 10 – the same set tda_write_stata writes, so a file written here reads back here.

Usage

tda_read_stata(
  file,
  n_records = NULL,
  missing = NULL,
  upper_names = FALSE,
  options = list(),
  dir = tempfile("tda"),
  ...
)

Arguments

file

path to the .dta file.

n_records

number of records to read. NULL, the default, reads all of them.

missing

value to substitute for Stata's system missing. TDA's default is -5.

upper_names

translate variable names to upper case (rstata's n=2). Default FALSE.

options

a named list of further TDA options, passed through. The reader also accepts, through options, TDA's noc=, msys=, arcd=, dfa=, fn=, p=, pn=, zoo= and vdf= switches.

dir

working directory.

...

passed to tda_run.

Value

A data frame. attr(x, "run") carries the run.

See also

tda_write_stata, tda_read_spss

Examples

d <- data.frame(id = 1:4, y = c(1.5, 2, 2.5, 3))
f <- tempfile(fileext = ".dta")
tda_write_stata(d, f)
tda_read_stata(f)
#>   Id   Y
#> 1  1 1.5
#> 2  2 2.0
#> 3  3 2.5
#> 4  4 3.0