Displaying 3 results from an estimated 3 matches for "yrclass".
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grclass
2004 Nov 10
1
Basic Q on coercing factors in data frames to numeric
...ples from 'An introduction to R', 'S-plus 6 programmers guide', etc, use simple vectors. I'm sure I'm missing something obvious but I can't find a way to change a single column in data frame. Ive tried several approaches: here is one
> summary(test)
age yrclass weight year
1 :10 1992 :10 Min. :0.005333 Min. :1993
2 :10 1989 : 9 1st Qu.:0.221790 1st Qu.:1995
3 :10 1990 : 9 Median :0.413411 Median :1997
4 :10 1991 : 9 Mean :0.420119 Mean :1997
5 :10 1988...
2005 Mar 16
1
Note: "The default device has been opened to honour attempt to modify trellis settings"
...after
plotting.
I have to close the graphics device to get the desired result (and it
works only after a few more function calls)
Here is the function code
"function"<-function(somedata)
{
..........
library(lattice)
trellis.par.set(theme = col.whitebg())
xyplot(log.catch ~ age | yrclass , data = tmp2)
detach(package:lattice)
savePlot(file="catch curve",type="jpeg")
}
function(somedata)
Thanks in advance.
I'm running on Windows XP
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system...
2004 Nov 11
0
ROracle SQL length limitation
...ples from 'An introduction to R', 'S-plus 6 programmers guide', etc, use simple vectors. I'm sure I'm missing something obvious but I can't find a way to change a single column in data frame. Ive tried several approaches: here is one
> summary(test)
age yrclass weight year
1 :10 1992 :10 Min. :0.005333 Min. :1993
2 :10 1989 : 9 1st Qu.:0.221790 1st Qu.:1995
3 :10 1990 : 9 Median :0.413411 Median :1997
4 :10 1991 : 9 Mean :0.420119 Mean :1997
5 :10 1988...