Hm, well.. I can do it in xls but I wanted to see if there is some (simple) way to do this in R.
2010/4/21 Dimitri Liakhovitski <ld7...@gmail.com> > And what is the format for year of birth in Excel? > Can't you use "concatenate" to concatenate a new column (that contains > only 19) and the column that contains a 2-digit year of birth? > And then change all those who are born (in the new column) before 1910 > to XX+100 - which will give you 2009 (or 2001), etc.? > > On Wed, Apr 21, 2010 at 9:57 AM, Vlatka Matkovic Puljic > <v.matkovic.pul...@gmail.com> wrote: > > Hi, > > > > well...when imported to R (from xls file) it transform to number > > print(D1) > > [1] 39804 39527 39917 39860 39489 > > ??? > > but in xls is dd/mm/yyyy > > > > and year of birth is as yy > > those born after 1999 are removed > > > > > > Dana 21. travnja 2010. 15:52 Dimitri Liakhovitski <ld7...@gmail.com> je > > napisao/la: > >> > >> In what format are you dates? > >> Are they always like this: two digits for day, then one or two digits > >> for month, and four digits for the year? > >> Also - are any of your people born after 1999? > >> > >> Dimitri > >> > >> > >> 2010/4/21 Vlatka MatkoviÄ PuljiÄ <vlatk...@gmail.com>: > >> > Hi, > >> > > >> > I have v1 (date of test) and v2 (year of birth). > >> > v1 v2 > >> > 15.5.2008 88 > >> > 18.6.2009 54 > >> > > >> > I want R to use only year in v1; and v2 see as 1988 and calculate age > in > >> > v3. > >> > any ideas how to do that? > >> > > >> > -- > >> > ************************** > >> > Vlatka MatkoviÄ PuljiÄ > >> > 095/8618 171 > >> > > >> > [[alternative HTML version deleted]] > >> > > >> > > >> > ______________________________________________ > >> > R-help@r-project.org mailing list > >> > https://stat.ethz.ch/mailman/listinfo/r-help > >> > PLEASE do read the posting guide > >> > http://www.R-project.org/posting-guide.html > >> > and provide commented, minimal, self-contained, reproducible code. > >> > > >> > > >> > >> > >> > >> -- > >> Dimitri Liakhovitski > >> Ninah.com > >> dimitri.liakhovit...@ninah.com > > > > > > > > -- > > ************************** > > Vlatka Matkovic Puljic > > 095/8618 171 > > > > > > -- > Dimitri Liakhovitski > Ninah.com > dimitri.liakhovit...@ninah.com > -- ************************** Vlatka Matkovic Puljic 095/8618 171 [[alternative HTML version deleted]]
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