Dewez Thomas wrote:
Dear R-users,
I am a newbie to R so please excuse this naive question for which I couldn't
seem to find online answers.
I have this data frame containing a series of locations through time
(x,y,z,t). I would like to compute the difference in x, y and z between t-1
and t.
Sounds easy enough, but how on earth does one loop through vector elements
and compute this difference?
See ?diff
Hence for a data frame X:
lapply(X, diff)
Uwe Ligges
Thanks
Thomas
***
Le contenu de cet e-mail et de ses pi�ces jointes est destin� � l'usage exclusif du
(des) destinataire(s) express�ment d�sign�(s) comme tel(s). En cas de r�ception de cet
e-mail par erreur, le signaler � son exp�diteur et ne pas en divulguer le contenu.
L'absence de virus a �t� v�rifi� � l'�mission du message. Il convient n�anmoins de
v�rifier l'absence de corruption � sa r�ception.
The contents of this email and any attachments are confidential. They are intended for
the named recipient(s) only. If you have received this email in error please notify the
system manager or the sender immediately and do not disclose the contents to
anyone or make copies. eSafe scanned this email for viruses, vandals and malicious
content.
***
______________________________________________
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
______________________________________________
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
