Dear R forum
I have just started my venture with R. While I am trying to learn R through the
tutorials, I think the current problem I need to address to is beyond my
knowledge about R.
I have a dataframe as defined below -
rat_dat = data.frame(name = c("A", "A", "A", "B", "B", "B", "C", "C", "C", "D",
"D", "D"),
period = c("31-Mar-11", "30-Mar-11", "29-Mar-11",
"31-Mar-11", "30-Mar-11", "29-Mar-11", "31-Mar-11", "30-Mar-11", "29-Mar-11",
"31-Mar-11", "30-Mar-11", "29-Mar-11"),
cy_date = c("31-May-11","31-May-11", "31-May-11", "31-May-11", "31-May-11",
"31-May-11", "31-May-11", "31-May-11", "31-May-11", "31-May-11", "31-May-11",
"31-May-11"),
values = c(10.42, 10.46, 10.37, 12.62, 12.65, 12.61, 14.10, 14.12, 14.08,
11.11, 11.15, 11.17))
> rat_dat
name period cy_date values
1 A 31-Mar-11 31-May-11 10.42
2 A 30-Mar-11 31-May-11 10.46
3 A 29-Mar-11 31-May-11 10.37
4 B 31-Mar-11 31-May-11 12.62
5 B 30-Mar-11 31-May-11 12.65
6 B 29-Mar-11 31-May-11 12.61
7 C 31-Mar-11 31-May-11 14.10
8 C 30-Mar-11 31-May-11 14.12
9 C 29-Mar-11 31-May-11 14.08
10 D 31-Mar-11 31-May-11 11.11
11 D 30-Mar-11 31-May-11 11.15
12 D 29-Mar-11 31-May-11 11.17
My actual data is too large. I need to
(1) rearrange this input as
period
cy_date
A
B
C
D
31-Mar-11
31-May-11
10.42
12.62
14.10
11.11
30-Mar-11
31-May-11
10.46
12.65
14.12
11.15
29-Mar-11
31-May-11
10.37
12.61
14.08
11.17
(2) Also, I need to find the difference between (rat_dat$cy_date) -
(rat_dat$period)
I hope I am able to put forward my requirement properly. If not, please forgive
me.
Sandeepa
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