[R] R issue with quantile using its package

[Gilroy, Lloyd (GTI)]

Frank,

Thanks for the reply so what I did in the interim was unistalled Hmisc
and chron and used version 3.0-2 of Hmisc which doesn't have the
dependency on chron, and reinstalled its version 1.1.4

However I still heave the issue, when I try to run the quantile command
on the given dataset.

Thanks,

~Lloyd


Gilroy, Lloyd (GTI) wrote:
> I currently have an instance of R running on Solaris 8 Version 2.2.0
> (2005-10-06 r35749)
> 
> Package: its  Version: 1.0.9
> 
> Package: Hmisc Version: 3.0-1
> 
>  
> 
> I decided to build a new install on Linux RedHat As4.0 32 Bit running
R
> version 2.4.0 (2006-10-03) 
> 
> Package: its Version: 1.1.4
> 
> Package: Hmisc Version: 3.1-1
> 
> Package: chron Version: 2.3-8

Lloyd - Charles Thomas Dupont will respond with the definitive 
information on this but I think that the later Hmisc required chron and 
it should not have.  Thomas will fix that.

Frank

> 
>  
> 
> I am using the library(its) on both machines and one of the functions
I
> have been using for a long time is quantile to determine the 99% value
> for a given days data set.
> 
>  
> 
> This works fine in the old instance of R but is not working on the new
> build.  The only diferrence I see is the library(its) requires
> library(chron) to be installed on the newer version but not on the
> original instance.
> 
>  
> 
> I read in a comma delimited file like the snippet below:
> 
> 2006-10-16 09:00:01,1.01,23.23,1.98,0.99,1.98,10.89,2.00,0
> 
> 2006-10-16 09:00:02,1.00,28.00,0,0,1.01,12.00,2.94,0
> 
> 2006-10-16 09:00:03,1.00,24.00,0,0,1.98,18.00,2.00,0
> 
> 2006-10-16 09:00:04,1.00,30.69,0,0.99,1.01,12.00,1.01,0
> 
> 2006-10-16 09:00:05,2.00,26.00,0,0,1.98,15.00,1.98,0
> 
> 2006-10-16 09:00:06,1.98,25.25,0,0,1.00,12.00,0,0
> 
> Etc.
> 
>  
> 
> To get the information I need I run the following:
> 
> library(its)
> 
> its.format("%Y-%m-%d %H:%M:%S")
> 
> x<-its(readcsvIts("datafilename"))
> 
> quantile(x[,1],c(.99))
> 
> quantile(x[,2],c(.99))
> 
>  
> 
> etc.
> 
>  
> 
> On the older version it returns the proper values, but on the new
> install I get the following error:
> 
>> quantile(x[,1],c(.99))
> 
> Error in validObject(.Object) : invalid class "its" object: Dates must
> be non-decreasing
> 
>  
> 
> Also what is interesting is when I type 
> 
> *       x[,1]
> 
> I get.
> 
> An object of class its
> 
> ... then towards the end of the data I get the following..
> 
> 2006-10-16 09:01:50  0.99
> 
> 2006-10-16 09:01:51  1.00
> 
> Slot "dates":
> 
>  [1] "2006-10-16 09:00:02 EDT" "2006-10-16 09:00:03 EDT"
> 
>  [3] "2006-10-16 09:00:04 EDT" "2006-10-16 09:00:05 EDT"
> 
>  [5] "2006-10-16 09:00:06 EDT" "2006-10-16 09:00:08 EDT"
> 
>  
> 
>  
> 
> I am not sure where the Slot "dates" is coming from.
> 
>  
> 
> If anyone could help it would greatly appreciated.
> 
>  
> 
> Thanks in advance.
> 
>  
> 
> ~Lloyd
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-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt
University