[R] Line plot using xyplot function in lattice package

2005-03-17 Thread Ghosh, Sandeep 
Hi All,

For the following data when I use xyplot in package lattice the intervals are 
in the order of 2, 24, 8, but instead I want them to be in the order 2, 8, 24.

  Treatment Interval  value
  A  2  0.448
  A24   1.85
  A  8  1.166
  B  2  1.074
  B24   1.5
  B  8  1.065
  C20.854
  C  8  0.589

The R script is xyplot(value ~ Interval, data=studyData, type='b', groups = 
Treatment,

Is there a way in xyplot to specify the order?. 

-Sandeep

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Re: [R] Line plot using xyplot function in lattice package

2005-03-17 Thread Sundar Dorai-Raj 

Ghosh, Sandeep wrote on 3/17/2005 1:25 PM:
Hi All,
For the following data when I use xyplot in package lattice the intervals are 
in the order of 2, 24, 8, but instead I want them to be in the order 2, 8, 24.
  Treatment Interval  value
  A  2  0.448
  A24   1.85
  A  8  1.166
  B  2  1.074
  B24   1.5
  B  8  1.065
  C20.854
  C  8  0.589
The R script is xyplot(value ~ Interval, data=studyData, type='b', groups = 
Treatment,
Is there a way in xyplot to specify the order?. 

-Sandeep

Hi Sandeep,
You can make Interval an ordered variable:
studyData$Interval - ordered(studyData$Interval, c(2, 24, 8))
xyplot(value ~ Interval, data=studyData, type='b', groups = Treatment)
--sundar
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Re: [R] Line plot using xyplot function in lattice package

2005-03-17 Thread Sundar Dorai-Raj 

Sundar Dorai-Raj wrote on 3/17/2005 2:27 PM:

Ghosh, Sandeep wrote on 3/17/2005 1:25 PM:
Hi All,
For the following data when I use xyplot in package lattice the 
intervals are in the order of 2, 24, 8, but instead I want them to be 
in the order 2, 8, 24.

  Treatment Interval  value
  A  2  0.448
  A   241.85
  A  8  1.166
  B  2  1.074
  B   241.5
  B  8  1.065
  C 2  0.854
  C  8  0.589
The R script is xyplot(value ~ Interval, data=studyData, type='b', 
groups = Treatment,

Is there a way in xyplot to specify the order?.
-Sandeep

Hi Sandeep,
You can make Interval an ordered variable:
studyData$Interval - ordered(studyData$Interval, c(2, 24, 8))
xyplot(value ~ Interval, data=studyData, type='b', groups = Treatment)
--sundar
Sorry I misread your original message. You just need to re-order the 
data, as in:

studyData - studyData[do.call(order, studyData), ]
xyplot(value ~ Interval, data=studyData, type='b', groups = Treatment)
HTH,
--sundar
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