Dear helper.
I am a beginer.
I have difficulties to handle axis. I want to draw axis label such that axis has range
of [-0.4,0.4] with intervel 0.2 for x and y axis.
Some part of range do not have data points. Thus, plot does not show whole range. How
can I enforce plot to depict the whole
Hi,
On Wed, 22 Oct 2003, yyh wrote:
I have difficulties to handle axis. I want to draw axis label such that axis has
range of [-0.4,0.4] with intervel 0.2 for x and y axis.
Some part of range do not have data points. Thus, plot does not show whole range.
How can I enforce plot to depict
Thank you for your help. But try() seems to only allow for an expression. My
simulation have serveral expressions which possibly have problem. Is there
any possibility to include them all in the try()? If not, I seem to use
several try().
From: Jason Turner [EMAIL PROTECTED]
To: Zhen Pang
Dear all,
i generated several GLM objects, named myobject1 to myobject25.
Now i'd like to update both of them.
So i tried:
for(ii in 1:25) {
assign(paste(myobject.updated, ii, sep=), update( myobject[ii]
,.~ + VAR2))
}
Doesn't work
I also tried to get all the names in a vector and
On Wed, 22 Oct 2003, Zhen Pang wrote:
Thank you for your help. But try() seems to only allow for an expression. My
simulation have serveral expressions which possibly have problem. Is there
any possibility to include them all in the try()? If not, I seem to use
several try().
{line1
line2
Christoph Bier schrieb:
[...]
Yes, it is, thanks! But it seems only to work with arrays as
No, it also works with data.frames as help(colSums) told me.
--
Christoph Bier, Dipl.Oecotroph., Email: [EMAIL PROTECTED]
Universitaet Kassel, FG Oekologische Lebensmittelqualitaet und
Ernaehrungskultur
What does
Doesn't work
mean here?
Note that myobject[ii] is unlikely to be what you want, and perhaps it
should be
get(paste(myobject, ii, sep=))
but the error messages you surely got should have been informative.
On Wed, 22 Oct 2003, LE TERTRE Alain wrote:
Dear all,
i
Sure that doesn't work is not very informative.
The error message is Error in update.default(mod.init, new.form, data = mydata,
na.action = na.omit) :
need an object with call component
That's because he's looking at a character object (the name) and not at the object
itself.
But your
Hi there fellow R-users,
Can anyone tell me how to build a prediction interval for a gaussian
log-link model for the reponse variable??
I can find the standard error of the predictions but I cant seem to find the
prediction interval. Is there a way I can calculate the
prediction interval from
Indicator kriging is nothing but ordinary or simple
kriging on binary (0/1) data; there's quite a list of packages
that can do kriging: gstat, geoR, sgeostat, fields,
spatial, ...
Be aware that indicator kriging outcomes only estimate
probabilities and may lie outside [0,1]
To my knowledge there's
Dear All,
RSPerl looks like a great package. Does anyone have it working on Windows? I have seen
references to problems building it on Windows, and suggestions to use R(D)COM instead,
therefore I was wondering what the current state of play is.
Many thanks,
Matthew
Hi all,
I wonder how to correctly write the following expression (it's the axis
label in a plot command):
ylab=expression(y' == y - bar(y) )
Somehow the single quote in y' is causing the problems, I guess because
it is interpreted as a quote...
Does it have to be escaped? But how?
Thanks
Dear Colleagues,
I have x, y data (pollen and seed dispersal from oaks !) that I would
like to fit with a function which look like this:
p(a,b,x,y)=b/(2*pi*a²gamma(2/b))*exp(-(square_root(x²+y²)/a)power(b))
I am looking for a and b values that fit my data at best.
Can someone give me hints to
Wayne Jones [EMAIL PROTECTED] writes:
Hi there fellow R-users,
Can anyone tell me how to build a prediction interval for a gaussian
log-link model for the reponse variable??
I can find the standard error of the predictions but I cant seem to find the
prediction interval. Is there a way I
Pascal A. Niklaus wrote:
Hi all,
I wonder how to correctly write the following expression (it's the axis
label in a plot command):
ylab=expression(y' == y - bar(y) )
expression(y * ' == y - bar(y))
Uwe Ligges
Somehow the single quote in y' is causing the problems, I guess because
it
Pascal A. Niklaus [EMAIL PROTECTED] writes:
Hi all,
I wonder how to correctly write the following expression (it's the
axis label in a plot command):
ylab=expression(y' == y - bar(y) )
Somehow the single quote in y' is causing the problems, I guess
because it is interpreted as a
I have a different wish: I want to be able to mouseclick in
the middle of a line to get the cursor there (as in SPlus).
While I appreciate that to get my wish I should just write
a little patch, I estimate it would take me about 2 years
to reach the point where I was capable of it, assuming I
Dear R experts,
I am new to the list and R software. I need to convert arcview file to Winbugs having
R has middle package. Got from friends that it is possible following the steps:
1. Converting arcview shapefile to cgm clear text file
2. Downloading convert.r to into R
2.1 use
Some related suggestions:
1. instead of dataFrame[condition, ], use
subset()
which has an inbuilt test for !is.na(condition). This function is
not documented in the Introduction or cross-referenced
by ?[, so should be posted to this list at least once a week
until everybody knows about
I am trying to understand the nuances of STL (seasonal trend
decomposition with loess) based on William Cleveland's (and others?)
original development. I do not understand the specification or use of
frequency components or equivalent low-pass filter components in
the stl() function.
I have
Have you considered nls or optim?
My way of handling this kind of problem is to assume that x and /
or y follow some probability distribution with parameters a and b. Then
I write a function to compute deviance = (-2*log(likelihood)) =
(-2*log(probability density for x and / or y
Your function is not quite complete -- you need to specify an error
distribution such as Poisson or negative binomial (see literature from the
past decade by J. Clark, Muller-Landau, Ribbens and others)
Assuming Poisson errors, if x and y are locations and
d is observed density:
f -
Hi all!
Is there a possibility to read Latex-formulas directly into R, e.g.
to read c=\frac{a}{b} such that R knows that c- a/b is
meant? I wish to generate some numerical examples of a
theoretical model with R (and also to generate some plots) and
I find it exhausting to translate my model
Simon Fear wrote:
3. I have a very old brown-covered book describing macros in
the S language (version 1? I don't have it to hand to check).
When and why did they disappear? (Hoping John Chambers
is reading this.)
Pretty much the same reason that you don't grind your flour
by hand with a
On Wed, 22 Oct 2003, Andrew White wrote:
I am trying to understand the nuances of STL (seasonal trend
decomposition with loess) based on William Cleveland's (and others?)
original development. I do not understand the specification or use of
frequency components or equivalent low-pass
Having to collect hourly electricity loads and quarter-of-an-hour electricity
production data for some years I think that the tidiest way of doing it is to resort
to ts but I don't know how to define such a frequency starting from a set date.
Leafing through r-help mail archives I've found this
On Wed, 22 Oct 2003, Orlando Zacarias wrote:
Dear R experts,
I am new to the list and R software. I need to convert arcview file to Winbugs
having R has middle package. Got from friends that it is possible following the
steps:
1. Converting arcview shapefile to cgm clear text file
2.
Hi,
I think yesterday's email from M.Kondrin's [EMAIL PROTECTED]
summarizes two alternatives (1 and 2 below); of course you can also
use R-1.7.1. To recap, I think you have 3 easy choices (at least):
(1) install R-patched from
ftp://ftp.stat.math.ethz.ch/Software/R/R-patched.tar.gz
Your question is not really clear because:
- I don't know what 'convert.r' do
- I don't know where 'transf.cgm' is (BTW, 'cgm' is not the usual extension
for shapefiles which is 'shp'). Check if it is really in your current
directory.
but, yes, if what you want is to import shapefiles in R, it's
Indeed, keeping the computations in R and working directly with the
Excel view of the cells is desirable for generality. It minimizes the
loss in information from translating to simpler forms such as CSV,
strings, etc.
From within R on Windows, one can use DCOM to create an Excel
application,
Hello,
I am looking for a workaround of species empty plots in a correspondence
analysis.
I tried to do a community structure analysis with a ca via decorana(), ca()
and CAIV(), but none of them allow 0 only-rows.
I have species (abs./pres) in columns and sites in rows
sp1 sp1 sp3
On Wed, 22 Oct 2003, Patrick Burns wrote:
Simon Fear wrote:
3. I have a very old brown-covered book describing macros in
the S language (version 1? I don't have it to hand to check).
When and why did they disappear? (Hoping John Chambers
is reading this.)
Pretty much the same
Thank you. The copy of M.Kondrin's email that I received was truncated,
so I don't know what he suggested. This should get me going.
Regards,
Barnet Wagman
David James wrote:
Hi,
I think yesterday's email from M.Kondrin's [EMAIL PROTECTED]
summarizes two alternatives (1 and 2 below); of
You may find the irregular time-series (its) package on CRAN
helpful.
If your raw data were in a csv file thus:
x
april 26 2002 15:00:00 1.1
april 26 2002 15:15:00 1.2
april 26 2002 15:30:00 1.3
april 26 2002 15:45:00 1.4
Then you could read it in thus:
On Wednesday 22 October 2003 15:09, [EMAIL PROTECTED] wrote:
Having to collect hourly electricity loads and quarter-of-an-hour
electricity production data for some years I think that the tidiest
way of doing it is to resort to ts but I don't know how to define
such a frequency starting from a
CA is based on relative composition and not on absolute value. So, empty
site do not give any information. In a computational point of view, empty
row or column do not allow to compute row / col weights. that is why most
function do not work with empty row or column. dudi.coa (ade4 package)
I am using Sweave to produce handouts for teaching.
Is there a way of making Sweave keep the comments following the `#' in
the code chuncks?
Thanks,
Giovanni
--
__
[ ]
[ Giovanni Petris
Hi,
I have a data set(say 2-d demands of a product (say flow-rate vs
concentration)) and with each demand is the weightage (like a probability)
of that demand occuring. Is there a way to cluster this demand-data
(deterministic or probabilistic(if possible)) which also incorporates the
weights
I have been using a product called rpy to allow me to access R from
Python. I was wondering if anybody know if a similar product for
Scheme.
Thanks,
Arend
__
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Hello.
I've got a very short question.
I've got a vector with about 800 numbers; and I would like to put them in a
file, but I need them to be written just one value in each row. Is this
possible?
Best regards
Javier
__
[EMAIL PROTECTED] mailing
javier garcia - CEBAS [EMAIL PROTECTED] writes:
I've got a very short question.
I've got a vector with about 800 numbers; and I would like to put them in a
file, but I need them to be written just one value in each row. Is this
possible?
write(myvec, file = 'myfile.txt', ncol = 1)
Hi!
Have build a package. I do not create by myself an INDEX file. If I got it
right it is optional. If no INDEX are there it is created during the
installation process.(So I understand the manual.) I call R CMD INSTALL
mytest .. But no INDEX file
are generated. Hence no function list are
On Wed, 22 Oct 2003, javier garcia - CEBAS wrote:
Hello.
I've got a very short question.
I've got a vector with about 800 numbers; and I would like to put them in a
file, but I need them to be written just one value in each row. Is this
possible?
Yes.
?write tells you one way.
--
From a data frame, how do we extract a specific column name, and plug that
into a command (eg. for Anova as shown below)
df = read.delim(mydata.txt)
y = colnames(df)
r = ncol(x)
Lets say that in the data frame column 1 contains treatments, column 2
contains doses, and columns 3, 4, 5 etc. are
My previous question put in a simpler way:
How would I pass a value of a variable to a function such as
lm(Effect1~Trt*Dose, data = x, contrasts = list(Trt = contr.sum, Dose =
contr.sum))?
Here, 'Effect' is a column name in my data matrix, and I want Effect1 to
be replaced by Effect2 and so on
Hi,
I asked exactly the same question to the author of Sweave privately last
week. Friedrich's reply was that it is not possible at the moment, as R
parser discard the comments. But he's working on it ;-D
On Wed, 22 Oct 2003, Giovanni Petris wrote:
Date: Wed, 22 Oct 2003 10:59:38 -0500
On Wed, 22 Oct 2003, Eryk Wolski wrote:
Hi!
Have build a package. I do not create by myself an INDEX file. If I got it
right it is optional. If no INDEX are there it is created during the
installation process.(So I understand the manual.) I call R CMD INSTALL
mytest .. But no INDEX file
Dear Subramanian,
How about this:
for (y in df[, 3:5]) {
mod = lm(y ~ Trt*Dose, data = x, contrasts = list(Trt =
contr.sum, Dose = contr.sum))
Anova(mod, type = III)
}
Does that give you what you want?
John
At 01:31 PM 10/22/2003
Simon Fear wrote:
I have a different wish: I want to be able to mouseclick in
the middle of a line to get the cursor there (as in SPlus).
While I appreciate that to get my wish I should just write
a little patch, I estimate it would take me about 2 years
to reach the point where I was capable of
I'm trying to find a clever way to re-map data from a database
query into a data.frame.
Querying a database often returns a table (data.frame) like this:
GeneID MethodID Value
61 123
62 456
63 987
71 234
73
Thanks John,
Your solution worked..
After i posted my message I tried sth else which also worked...
I tried this:
for (i in 3:cnum) {
fla = as.formula(paste((cnom[i],~,Trt*Dose))
mod = lm(fla, data = x, contrasts = list(Trt = contr.sum, Dose =
contr.sum))
an = Anova(mod,type
Subramanian Karthikeyan [EMAIL PROTECTED] writes:
My previous question put in a simpler way:
How would I pass a value of a variable to a function such as
lm(Effect1~Trt*Dose, data = x, contrasts = list(Trt = contr.sum, Dose =
contr.sum))?
Here, 'Effect' is a column name in my data
Simon Fear [EMAIL PROTECTED] writes:
While I appreciate that to get my wish I should just write
a little patch, I estimate it would take me about 2 years
to reach the point where I was capable of it, assuming I
did nothing else, and I would certainly have to understand
Windows, which in
Assuming your input data frame is genes:
reshape(genes,idvar=GeneID,timevar=MethodID,direction=wide)
--- On Wed 10/22, Mark Dalphin [EMAIL PROTECTED] wrote:
From: Mark Dalphin [mailto: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Date: Wed, 22 Oct 2003 12:05:44 -0700
Subject: [R] How to
Hi, Peter:
How does that compare with the following:
for (myname in names(myframe)[1:4]){
mdl - formula(paste(myname, ~ etc.etc))
myfit - lm(mdl, data=myframe)
print(summary(myfit))
}
Or:
for (myname in names(myframe)[1:4]){
lm.txt - paste(lm(, myname, ~ etc.etc, data=myframe))
Spencer Graves [EMAIL PROTECTED] writes:
Hi, Peter: How does that compare with the following: for (myname
in names(myframe)[1:4]){
mdl - formula(paste(myname, ~ etc.etc))
myfit - lm(mdl, data=myframe)
print(summary(myfit))
}
Or: for (myname in names(myframe)[1:4]){
Hi, Peter: I'll have to study your example and alternatives. spencer
graves
Peter Dalgaard wrote:
Spencer Graves [EMAIL PROTECTED] writes:
Hi, Peter: How does that compare with the following: for (myname
in names(myframe)[1:4]){
mdl - formula(paste(myname, ~ etc.etc))
myfit -
I have spatial data in 2 dimensions - say (x,y). The correlation
between x and y is fairly substantial. My goal is to use a
non-parametric approach to estimate the multivariate density describing
the spatial locations. Ultimately, I would like to use this estimated
density to determine the area
John -
My recollection is that Adrian Raftery's contributed package 'mclust'
does kernel density estimation as well. Not sure whether it does what
you need. Take a look at it on CRAN. Ah..I see that the description
which shows up on Jon Baron's search page is not encouraging. Give it
a try,
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