Displaying 20 results from an estimated 4000 matches similar to: "aggregate.formula"
2007 Nov 21
1
Manipulating x axis in stripchart
Hi all,
I I need to manipulate the x axis in a stripchart.
I will use one of the data sets included in R to
explain what I need to do.
attach(ToothGrowth)
stripchart(len[supp=='VC']~dose[supp=='VC'],
vertical=TRUE, group.names=c('A','A','A'))
stripchart(len[supp=='OJ']~dose[supp=='OJ'], add=TRUE,
vertical=TRUE, at=c(1:3)+.1,
2008 Sep 12
2
Again, about boxplot
Thank you for your guys reply for my previous question. But I got one more
question about the boxplot. With the code in the R-help:
boxplot(len ~ dose, data = ToothGrowth,
boxwex = 0.25, at = 1:3 - 0.2,
subset = supp == "VC", col = "yellow",
main = "Guinea Pigs' Tooth Growth",
xlab = "Vitamin C dose mg",
ylab =
2002 Feb 08
0
interaction.plot (with misplaced legend) (PR#1305)
Kaiya Liu wrote:
>
> Hi,
>
> I encountered a problem when I did interaction plots using the
> interaction.plot() function. The labels for the trace factor appeared on
> the plot when I did the plots in separate windows, but disappeared/cut off
> when multiple plots were placed in one window. Can anybody help me?
>From the example of ?interaction.plot:
data(ToothGrowth)
2010 Sep 26
2
Changing x-axis on boxplot
Dear List,
?
I am creating a boxplot with two subsets, very similar to the example by Roger
Bivand at ?boxplot (reproduced below).? I am trying to change the labels on the
x-axis to have one number to cover both subsets.? I can do this in other plots
by using axis=FALSE followed by a separate axis() command.? I have also tried
variations in the names= argument but can't get it to work.?
2004 Jan 04
0
termplot; failure to subset non-dataframe carriers (PR#6327)
termplot() does not carry subsetting over to carriers that
are in the environment but not in the data frame. This
generates a "subscript out of bounds" error.
> data(ToothGrowth)
> logdose <- log(ToothGrowth$dose)
> tooth.lm <- lm(len ~ logdose, data=ToothGrowth)
> termplot(tooth.lm) ## Works fine
> toothVC2.lm <- lm(len ~ poly(dose,2),
2001 Jul 25
2
pch with plot and legend
I'm trying to plot a scatterplot of two variables using pch to plot
different characters based on a third factor. Here is my example
> data("ToothGrowth")
> attach(ToothGrowth)
> levels(supp)
[1] "OJ" "VC"
> plot(len ~ dose,pch=as.numeric(supp))
> legend(locator(1),pch=as.numeric(supp),legend=levels(supp))
The command as.numeric(supp) returns 2 2
2001 Jan 07
0
boxplot question
Hi All,
As a follow-on from the mail below, it is possible to have boxplots based on
means and variance for more than one input, i.e.,
bxp(input1,input2,....)
Thanks in Advance,
Dermot
******** Previous Mail on this subject ***********
>I have a couple more questions about boxplots. In the books I've read on
>statistics (I'm not a statistics expert but just a poor engineer
2011 Mar 25
2
error in bargraph.CI {sciplot}
Hi to all,
Does anybody knows why this is giving an error?
data(ToothGrowth)
# Two-way design with options
bargraph.CI(dose, len, group = supp, data = ToothGrowth,
xlab = "Dose", ylab = "Growth", cex.lab = 1.5, x.leg = 1,
col = "black", angle = 45, cex.names = 1.25,
density = c(0,20), legend = TRUE)
Error in dn.call[[1]] :
2008 Feb 04
7
adding the mean and standard deviation to boxplots
Dear list,
How can I add the mean and standard deviation to each of the boxplots using the example provided in the boxplot function?
boxplot(len ~ dose, data = ToothGrowth,
boxwex = 0.25, at = 1:3 - 0.2,
subset = supp == "VC", col = "yellow",
main = "Guinea Pigs' Tooth Growth",
xlab = "Vitamin C dose mg",
2008 Sep 11
4
About "Plot.new"
Hi, sorry for bothering your guys.
I will trying to make some nice graph using boxplot. when I check the help
file of boxplot, there is a sample code as:
boxplot(len ~ dose, data = ToothGrowth, add = TRUE,
boxwex = 0.25, at = 1:3 + 0.2,
subset = supp == "OJ", col = "orange")
legend(2, 9, c("Ascorbic acid", "Orange juice"),
2010 Apr 02
1
lineplot.CI in "sciplot": option "ci.fun" can't be changed?
hi List and Manuel,
I have encounter the following problem with the function "lineplot.CI".? I'm running R 2.10.1, sciplot 1.0-7 on Win XP.? It seems like it's a scoping issue, but I couldn't figure it out.
Thanks!
...Tao
> lineplot.CI(x.factor = dose, response = len, data = ToothGrowth)??? ## fine
> lineplot.CI(x.factor = dose, response = len, data = ToothGrowth,
2003 Feb 23
0
unsubscribe
From:r-devel-admin@stat.math.ethz.ch on 02/22/2003 12:00 PM CET
Sent by: r-devel-admin@stat.math.ethz.ch
Please respond to r-devel@stat.math.ethz.ch
To: r-devel@stat.math.ethz.ch
cc: (bcc: Asheka Rahman/arahma1/LSU)
Subject: R-devel digest, Vol 1 #101 - 10 msgs
Send R-devel mailing list submissions to
r-devel@stat.math.ethz.ch
To subscribe or unsubscribe via the World Wide Web,
2010 Feb 11
1
Rounding multinomial proportions
I present you with a function that solves a problem that has bugged me for
many years. I think the problem may be general enough to at least consider
adding this function, or a revamped version of it, to the 'stats' package,
with the other multinomial functions reside.
I'm using R to export data to text files, which are input data for an
external model written in C++. Parts of the
2005 Feb 21
1
is.matrix(), as.matrix, & as(,"matrix")
Under help(matrix) it is written:
'is.matrix' tests if its argument is a (strict) matrix. It is
generic: you can write methods to handle specific classes of
objects, see InternalMethods.
Further down, under "Details", the meaning of "strict" is explained
more explicitly:
'is.matrix' returns 'TRUE' if 'x' is a matrix
2003 Feb 21
1
POSIX problem in New Zealand (PR#2570)
Full_Name: Arni Magnusson
Version: 1.6.2
OS: Windows XP
Submission from: (NULL) (210.48.49.68)
Hi there. I'm experiencing unexpected behaviour from as.POSIXct:
> as.POSIXct("1969-12-24")
[1] "1969-12-23 23:00:00 New Zealand Standard Time"
> as.POSIXlt("1969-12-24")
[1] "1969-12-24"
> as.POSIXlt("1969-12-24")+1
[1] "1969-12-23
2003 Aug 20
1
Five functions proposed for base
Dear r-devel,
Among the R functions I have written and later shared with colleagues,
there are five that I hope will become a part of the R base package. The
tasks are neither specific nor marginal, so rather than creating one more
'misc' package, I would be happy if the R Development Core Team would
adopt these functions and hammer them into shape.
The functions are available from
2009 Nov 03
2
bargraph.ci - CI and color question.
Hello,
When using bargraph.CI in package sciplot can the bars for each group
be different colors? How do I select the color for each group?
When I use this instead of the default (SD vs SE):
bargraph.CI(x.factor = dose, response = len, data = ToothGrowth,
ci.fun= function(x) c(mean(x)-sd(x), mean(x) + sd(x)) )
Am I getting 95% CI bars?
Thank you kindly,
Michael Just
2010 Nov 27
1
How to add multiple ablines
Hi folks
Run;
> ToothGrowth
> attach(ToothGrowth)
> toothgrowth=lm(len~dose)
adding abline:
> abline(toothgrowth)
I got it done adding single abline.
How to add more ablines on the same diagram?
I found following thread, applying "mapply" command;
Plotting multiple ablines
http://www.mail-archive.com/r-help@r-project.org/msg51543.html
mapply(abline,
(converge$kY +
2020 Apr 20
1
stringsAsFactors and type.convert()
Dear Martin,
Thank you for the well-reasoned response. I realized I was rather late to make this suggestion for 4.0.0, changing a somewhat low-level function that can indeed affect packages.
I was just reviewing some R user scripts that were using type.convert(), mainly on data frames. In all cases, people were passing as.is=TRUE, so I was reminded that I would not be the only user who would
2011 Aug 15
2
Missing datasets (2.13.1)
Dear all
How does one resolve the variance between the actual availability of data
sets in the default implementation with those mentioned in the
documentation?
I am unable to attach some of the datasets, even though help() is available
for the same datasets. For example, "ToothGrowth" is a dataset that is
widely mentioned in the documentation as being part of the base install.