Re: [R] Confusing concept of vector and matrix in R
> Reframe the problem. Rethink why you need to keep dimensions. I never ever
> had to use drop.
The problem is that the type of the return value changes if you happen
to forget to use drop = FALSE, which can easily turn into a nightmare:
m <- matrix(1:20, ncol=4)
for (i in seq(3, 1, -1)) {
print(class(m[1:i, ]))
}
[1] "matrix"
[1] "matrix"
[1] "integer"
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Re: [R] R output to Rich Text Format
> Hi, Does anyone know of an existing package that will output to rtf? > Something along the lines of pdf(ds,'file.pdf') or write.csv(ds,'file.csv'). You could use odfWeave and then use OpenOffice to generate an RTF file. Regards, Tom __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] odfWeave Error
> I am following an example from online and am getting the following error:
> ."Error unizipping fileunzip not found".
Are zip and unzip in your path? If not you could use odfWeaveControl.
Example:
odfctrl <- odfWeaveControl(
zipCmd = c("h:/bin/zip.exe -r $$file$$ .", "h:/bin/unzip.exe -o $
$file$$"),
)
odfWeave(template, outfile, control = odfctrl)
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Re: [R] dot-dot-dot as an actual argument
> I could not find any documentation of how dot-dot-dot works when used > as an argument in a function call (rather than as a formal argument in > a definition). You might also be interested in other thread regarding this problem: http://groups.google.com/group/r-help-archive/msg/5c6ea5eb593337b4 Regards Tom __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] ellipsis-related error: used in an incorrect context, no ... to look in
Does nobody have an advice concerning that problem? If it is a FAQ,
I'd appreciate a pointer to a discussion of this issue. With the docs
accessible to me, I wasn't able to solve that problem.
> require(lattice)
> f.barchart <- function(...) {
> barchart(...,
> panel = function(x, y, ...) {
> panel.barchart(x, y, ...)
> }
> )
> }
>
> x <- data.frame(a = c(1,1,2,2), b = c(1,2,3,4), c = c(1,2,2,1))
> f.barchart(a ~ b, data = x, groups = c)
>
> Which results in the following error being thrown:
>
> ..3 used in an incorrect context, no ... to look in
Regards,
Tom
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[R] ellipsis-related error: used in an incorrect context, no ... to look in
Hi,
I have the following code snippet:
require(lattice)
f.barchart <- function(...) {
barchart(...,
panel = function(x, y, ...) {
panel.barchart(x, y, ...)
}
)
}
x <- data.frame(a = c(1,1,2,2), b = c(1,2,3,4), c = c(1,2,2,1))
f.barchart(a ~ b, data = x, groups = c)
Which results in the following error being thrown:
..3 used in an incorrect context, no ... to look in
When I use the following definition:
f.barchart <- function(...) {
substitute(barchart(...,
panel = function(x, y, ...) {
panel.barchart(x, y, ...)
}
))
}
I get:
barchart(a ~ b, data = x, groups = c,
panel = function(x, y, ...) {
panel.barchart(x, y, a ~ b, data = x, groups = c)
})
I'm not sure if this is the cause of above error but this would mean
that the ellipsis in panel.barchart gets wrongly expanded with the
contents of the arguments given to f.barchart and not the panel
function.
Is there a way to avoid this problem? How can I make the function
work?
I use R 2.10.1 @ win32.
Regards,
Tom
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Re: [R] question on sqldf syntax
On 25 Jan., 20:26, GL wrote:
> Actually, better sql would likely be:
>
> dbs.final <- sqldf("select * from dbs.possible.combos left join
> dbs.aggregate using (Date,Place)")
>
> but this still doesn't work
I'd suspect name mangling to cause the problem:
http://code.google.com/p/sqldf/#2._Why_does_sqldf_seem_to_mangle_certain_variable_names?
Try to quote the table names with backticks (`).
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Re: [R] lattice: How to display no box but only a y-axis on the left + Thicker lines
> Yes. You can get back the tick marks with scaless$col: Thanks for the hint. May I kindly ask what would be the easiest way to draw a line on the left side? Thanks, Tom __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] lattice: How to display no box but only a y-axis on the left + Thicker lines
> 1.) How do I make lattice (e.g. barchart) to not draw a box but only a > y-axis on the left hand side so that the plot looks like barplot with > default settings? Does nobody have an idea? Or is the solution that obvious? __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] lattice: How to display no box but only a y-axis on the left + Thicker lines
Hi, I have two somewhat embarassing questions about the lattice-related plot functions: 1.) How do I make lattice (e.g. barchart) to not draw a box but only a y-axis on the left hand side so that the plot looks like barplot with default settings? So that the following two code snippets look more alike: barplot(VADeaths) library(reshape) vad <- melt(data.frame(VADeaths, Age=rownames(VADeaths)), id="Age") barchart(value ~ variable, groups=Age, horizontal=FALSE, stack=TRUE, data=vad) 2.) What is the proper way to make lines in xyplots thicker? When I set lwd=2, I get thicker lines but in conjunction with lty=1:n they also look somewhat ugly which makes me wonder if I'm doing something wrong. I guess both questions are newbie questions and the information should be easily available somewhere. Unfortunately I wasn't able to find the answer to these questions myself. Regards, Tom __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
