On 7/20/2016 8:26 PM, lily li wrote:
Yes, I tried to create a dataframe and merge it with the shortened
dataframe. The resulting dataframe goes with the short one and truncates
the complete date column, so it does not work.
On Wed, Jul 20, 2016 at 6:38 PM, David Winsemius <dwinsem...@comcast.net>
wrote:
On Jul 20, 2016, at 1:31 PM, lily li <chocol...@gmail.com> wrote:
Hi R users,
I have a dataframe, where there is a column 'time' represents time series
but is not complete. How to expand the dataframe so this column will
become
complete, where other columns with the newly added rows have NA values?
Thanks.
df
A B C time
10 5 3.3 1990-01-01
11 5 4 1990-02-07
12 4 3 1990-02-14
...
Make a dataframe with a 'time' column using seq.Date and merge that
dataframe with your df dataframe.
[[alternative HTML version deleted]]
Really .... isn't it time you learned how to send plain text. You've
posted many questions on Rhelp. It's really not that difficult on gmail. I
also have a gmail account and have had no difficulty finding instructions
on how to do it.
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David Winsemius
Alameda, CA, USA
Don't just say you tried to do the merge and it doesn't work. At a
minimum show us the ACTUAL code you used and give us any error messages
you got or show us a portion of the results and explain why it is not
what you expected. If possible, give us a small amount of data using
dput() so that we can "play along at home" (i.e. give us a reproducible
example).
Dan
Daniel Nordlund
Port Townsend, WA
--
Daniel Noredlund
Bothell, WA USA
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R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
