Hello there!
does any one know how to convert the following type of data
> z
DATE TIME ISIN PRICE VOL ID_DEAL RANK
1881 2009-09-11 10:30:59 RTS-9.09 117445 10 98200801 1
1882 2009-09-11 10:31:59 RTS-9.09 117450 1 98202144 6
1883 2009-09-11 10:32:59 RTS-9.09 117285 1 98203075 1
1884 2009-09-11 10:33:59 RTS-9.09 117180 3 98203828 1
1885 2009-09-11 10:34:58 RTS-9.09 117155 6 98204485
1> str(z)
'data.frame': 5 obs. of 7 variables:
$ DATE : Factor w/ 1 level "2009-09-11": 1 1 1 1 1
$ TIME : Factor w/ 3331 levels "10:30:05","10:30:14",..:
8 15 23 30 38
$ ISIN : Factor w/ 25 levels "BR-9.09","CHMF-9.09",..: 15
15 15 15 15
$ PRICE : num 117445 117450 117285 117180 117155
$ VOL : num 10 1 1 3 6
$ ID_DEAL: int 98200801 98202144 98203075 98203828 98204485
$ RANK : int 1 6 1 1 1>
to xts object without any modifications to data types of columns... namely,
when I try to convert by means of
> z<-as.xts(z[,3:6],order.by=as.POSIXct(paste(z$DATE,z$TIME)))
> z
ISIN PRICE VOL ID_DEAL
2009-09-11 10:30:59 "RTS-9.09" "117445" "10"
"98200801"
2009-09-11 10:31:59 "RTS-9.09" "117450" " 1"
"98202144"
2009-09-11 10:32:59 "RTS-9.09" "117285" " 1"
"98203075"
2009-09-11 10:33:59 "RTS-9.09" "117180" " 3"
"98203828"
2009-09-11 10:34:58 "RTS-9.09" "117155" " 6"
"98204485"> str(z)
An ?xts? object from 2009-09-11 10:30:59 to 2009-09-11 10:34:58 containing:
Data: chr [1:5, 1:4] "RTS-9.09" "RTS-9.09"
"RTS-9.09" "RTS-9.09"
"RTS-9.09" "117445" ...
- attr(*, "dimnames")=List of 2
..$ : NULL
..$ : chr [1:4] "ISIN" "PRICE" "VOL"
"ID_DEAL"
Indexed by objects of class: [POSIXt,POSIXct] TZ: GMT
Original class: 'data.frame'
xts Attributes:
NULL>
I get PRICE and VOL columns converted to Char type of data, but I want it to
be in numeric format - are there any ways to do it? I tried to convert the
original columns by as.numeric but in any case xts converts it to char...
Thanks in advance!
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