[R] Reshape

[arun]

Hi,

Please use ?dput() for the example data
sunrise<- structure(list(day_frac = c("Santiago", "Ourense", "Vigo", "Ferrol", 
"Santiago", "Ourense", "Vigo", "Ferrol", "Santiago", "Ourense", 
"Vigo", "Ferrol"), time = structure(c(1372935664, 1372935605, 
1372935846, 1372935458, 1373022101, 1373022041, 1373022282, 1373021896, 
1373108540, 1373108479, 1373108720, 1373108336), class = c("POSIXct", 
"POSIXt"), tzone = ""), V3 = c("2013-07-04", "2013-07-04", "2013-07-04", 
"2013-07-04", "2013-07-05", "2013-07-05", "2013-07-05", "2013-07-05", 
"2013-07-06", "2013-07-06", "2013-07-06", "2013-07-06")), .Names = c("day_frac", 
"time", "V3"), row.names = c("1", "2", "3", "4", "5", "6", "7", 
"8", "9", "10", "11", "12"), class = "data.frame")
library(reshape2)
res<-dcast(sunrise,V3~day_frac,value.var="time")
res
 #         V3              Ferrol             Ourense            Santiago
#1 2013-07-04 2013-07-04 06:57:38 2013-07-04 07:00:05 2013-07-04 07:01:04
#2 2013-07-05 2013-07-05 06:58:16 2013-07-05 07:00:41 2013-07-05 07:01:41
#3 2013-07-06 2013-07-06 06:58:56 2013-07-06 07:01:19 2013-07-06 07:02:20
 #                Vigo
#1 2013-07-04 07:04:06
#2 2013-07-05 07:04:42
#3 2013-07-06 07:05:20
A.K.



----- Original Message -----
From: Dominic Roye <dominic.roye at gmail.com>
To: R help <r-help at r-project.org>
Cc: 
Sent: Tuesday, July 30, 2013 9:41 AM
Subject: [R] Reshape

Hello,

I try out to create a new form from the below data.frame.

I would like to have this form:

V3                 Santiago                  Ourense     Vigo    Ferrol
2013-07-04     2013-07-04 07:01:04 ......................................

How can i get this?

> str(sunrise)
'data.frame': 24 obs. of  3 variables:
$ day_frac: Factor w/ 4 levels "Ferrol","Ourense",..: 3 2 4 1 3 2 4 1 3 2
...
$ time    : POSIXct, format: "2013-07-04 07:01:04" ...
$ V3      : Factor w/ 6 levels "2013-07-04","2013-07-05",..: 1 1 1 1 2 2 2
2 3 3 ...

> sunrise
   day_frac                time         V3
1  Santiago 2013-07-04 07:01:04 2013-07-04
2   Ourense 2013-07-04 07:00:05 2013-07-04
3      Vigo 2013-07-04 07:04:06 2013-07-04
4    Ferrol 2013-07-04 06:57:38 2013-07-04
5  Santiago 2013-07-05 07:01:41 2013-07-05
6   Ourense 2013-07-05 07:00:41 2013-07-05
7      Vigo 2013-07-05 07:04:42 2013-07-05
8    Ferrol 2013-07-05 06:58:16 2013-07-05
9  Santiago 2013-07-06 07:02:20 2013-07-06
10  Ourense 2013-07-06 07:01:19 2013-07-06
11     Vigo 2013-07-06 07:05:20 2013-07-06
12   Ferrol 2013-07-06 06:58:56 2013-07-06




Thanks,

Regards

    [[alternative HTML version deleted]]

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