[R] read.zoo issues
Santosh Srinivas
santosh.srinivas at gmail.com
Mon Oct 18 14:37:25 CEST 2010
Okay ... now I gotcha ... Thanks
-----Original Message-----
From: Gabor Grothendieck [mailto:ggrothendieck at gmail.com]
Sent: 18 October 2010 17:19
To: Santosh Srinivas
Cc: r-help at r-project.org
Subject: Re: [R] read.zoo issues
On Mon, Oct 18, 2010 at 4:24 AM, Santosh Srinivas
<santosh.srinivas at gmail.com> wrote:
> I am getting problems using read.zoo
>
> I have the following data frame
>
>> head(anlyNiftyDat[,1:10])
> TIMESTAMP ACC AMBUJACEM AXISBANK BAJAJ-AUTO BHARTIARTL
> BHEL BPCL CAIRN CIPLA
> 1 2010-01-04 00:00:00 913.60 106.10 992.10 1732.05 325.20
> 2426.10 650.75 285.50 337.55
> 2 2010-01-05 00:00:00 901.75 105.30 1012.80 1740.05 330.35
> 2435.40 640.95 295.85 331.50
> 3 2010-01-06 00:00:00 907.60 105.95 995.80 1713.15 326.85
> 2426.25 631.30 299.45 344.90
> 4 2010-01-07 00:00:00 913.35 105.80 1002.85 1683.10 329.40
> 2409.50 619.05 307.85 342.05
> 5 2010-01-08 00:00:00 912.15 105.90 1015.95 1655.25 325.05
> 2424.10 629.55 306.15 341.10
> 6 2010-01-11 00:00:00 915.15 106.10 1049.40 1669.55 328.95
> 2396.95 627.90 300.15 342.30
>
>> class(anlyNiftyDat)
> [1] "cast_df" "data.frame"
>>
>
>> anlyNiftyDatZoo <- read.zoo(anlyNiftyDat,split=2,check.names=F)
>> head(anlyNiftyDatZoo[,1:10])
> X805.45.1 X805.45.2 X805.45.3 X805.45.4 X805.45.5 X805.45.6
> X805.45.7 X805.45.8 X805.45.9 X805.45.10
> 2010-01-04 NA NA NA NA NA NA
> NA NA NA NA
> 2010-01-05 NA NA NA NA NA NA
> NA NA NA NA
> 2010-01-06 NA NA NA NA NA NA
> NA NA NA NA
> 2010-01-07 NA NA NA NA NA NA
> NA NA NA NA
> 2010-01-08 NA NA NA NA NA NA
> NA NA NA NA
> 2010-01-11 NA NA NA NA NA NA
> NA NA NA NA
>
> Both the column names and values are thrown off.
There is no reason to think that read.zoo should be able to understand
cast_df objects from the reshape package. Use the reshape2 package
instead which produces ordinary data frames rather than cast_df
objects.
--
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