Hello,
As for question (1), try the following.
y2 <- cumsum(c(TRUE, diff(x1) > 0))
identical(as.integer(y1), y2) # y1 is of class "numeric"
As for question (2) I'm not understanding it.
Hope this helps,
Rui Barradas
Em 17-07-2013 18:21, Arnaud Michel escreveu:
Hi Arun
I have two questions always about the question of symplify a dataframe
I would like
1) to transform the vector x1 into the vector y1
x1 <- c(1,1,1,-1000, 1,-1000, 1,1,1,1,1,1,-1000)
y1 <- c(1,1,1,1, 2,2, 3,3,3,3,3,3,3)
2) to transform the vectors Debut and Fin by taking into account INDX
into the two vectors Deb and Fin
Debut <- c (
"24/01/1995", "01/05/1997" ,"31/12/1997", "02/02/1995" ,"28/02/1995"
,"01/03/1995",
"13/03/1995", "01/01/1996", "31/01/1996", "24/01/1995", "01/07/1995"
,"01/09/1995",
"01/07/1997", "01/01/1998", "01/08/1998", "01/01/2000",
"17/01/2000","29/02/2000")
Fin <- c (
"30/04/1997", "30/12/1997" ,"31/12/1997", "27/02/1995", "28/02/1995",
"12/03/1995",
"30/06/1995", "30/01/1996", "31/01/1996", "30/06/1995", "31/08/1995",
"30/06/1997",
"31/12/1997", "31/07/1998", "31/12/1999", "16/01/2000", "28/02/2000",
"29/02/2000")
INDX <- c(6,6,6, 11,11,11, 4, 5,5)
Deb <- c("*24/01/1995*", "*02/02/1995*", "*13/03/1995*",
"*01/01/1996*")
Fi n <- c("*31/12/1997*", "*12/03/1995*", "*30/06/1995*",
"*31/01/1996*")
Debut Fin INDX
*24/01/1995* 30/04/1997 6
01/05/1997 30/12/1997 6
31/12/1997 *31/12/1997* 6
*02/02/1995* 27/02/1995 11
28/02/1995 28/02/1995 11
01/03/1995 *12/03/1995* 11
*13/03/1995* *30/06/1995* 4
*01/01/1996* 30/01/1996 5
31/01/1996 *31/01/1996* 5
................
Thanks for your help
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