Parse date/time formats about haven

[hadley]

• Update ReadStat to get latest behaviour
• Add POSIX support to TimeFormatStrings or wait for Rexamine project

[hadley]

@afleishman since you're interested, is there any chance you could make me a sav file containing date times with one column for each date-time type?

[afleishman]

Of course. I created this file using write_sav. There are three columns -- First, is date type, next is POSIXct, and finally character. Let me know if you need anything else!

https://github.com/afleishman/spss/blob/0244b4836c63adff180cbf65ec0a9182733fc19b/test_haven.sav

[hadley]

@afleishman can you please create with spss? (not haven, since that's what I'm trying to test)

[afleishman]

https://github.com/afleishman/spss/blob/master/test_spss.sav

[hadley]

@afleishman could you add a column with a time variable please?

[afleishman]

https://github.com/afleishman/spss/blob/master/test_time_spss.sav

first column type: Date (mm/dd/yyyy)
second column type: Date (dd-mmmm-yyyy hh:mm:ss)
third column type: Date (hh:mm:ss.ss)

[hadley]

I'm currently getting

        date            date.posix     time
1 2014-09-22 201416-09-22 00:00:00 12:11:10
2 2014-09-23   2014-09-23 15:59:20 15:59:20

And I suspect that the first date.posix is incorrect. What is it supposed to be?

@evanmiller any thoughts on why only the first value is getting read incorrectly?

[afleishman]

Actually, it was a typo on my part... what you've produced is correct. Sorry about that.

[hadley]

In that case, awesome :)