Re: converting factors into dates

[Garrett Grolemund]

Elisabeth,

ymd can only handle vector input. It looks like date is a data frame. You'll need to pass just the DurationPartner_1 column of date to ymd. 

You can extract this column as vector with

date$DurationPartner_1

and parse it with 

ymd(date$DurationPartner_1)

Cheers,

Garrett

On Thu, May 8, 2014 at 2:37 AM, Elisabeth Schubach <elisabeth...@gmx.de> wrote:

Dear lubridate-users,

I am new to lubridate and tried to convert factors into dates using the following command. However, I got the following error message:

> ymd(date)

[1] NA.

Warning message:

All formats failed to parse. No formats found. 

> str(date)

'data.frame': 1819 obs. of  1 variable:

 $ DurationPartner_1: Factor w/ 147 levels "","0000-00-00",..: 104 1 1 78 131 1 135 79 68 108 ...

I would appreciate your help.

Elisabeth

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