Hello
Recently, I've been dealing with a seemingly simple problem. I have a table
with two columns filled with values from a test I made (say, amount of
precipitation and Months measured). Now, instead of plotting a typical
linear graphic with precipitation on the y-axis and the months in the
Fellow Users,
In Spatstat, if you have a ppp object with, say 100 points, how do you
create another ppp containing a random selection, N, of the original?
You can tell the function 'rthin' to make a sub-selection of points, i.e.
every point is removed with probability 0.5 but you CAN'T set N
Try getSymbols(RCOM.NS, from=1900-01-01) instead.
It looks like google has removed the ability to download csv (not much business
providing it;)). In any case, Yahoo historical prices go way back than googles.
For instance, getSymbols(^DJI, from=1900-01-01) ; head(get(DJI)) shows
the first
Dear Mr. or Ms.,
I used the R-software to run the zero-inflatoin negative binomial model, but I
could not get the results. And the error message is
solve.default(as.matrix(fit$gaussian)) . In the model, I introduced 3 dummy
variables. I do not know the reasons fully.
I will be very
That was very clever. Worked perfectly, thanks!
And thanks to everyone else who provided feedback.
On Jun 5, 2010, at 5:46 AM, jim holtman wrote:
It this what you are looking for:
set.seed(1)
# create range for each possible class
# 'name' the values so you can use them in the 'sapply'
Hi Prof Brain Ripley,
If we know the residual of the model, how could we calculate the Log
likelihood?
Thanks for your help,
Yunteng Lao
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On 06/06/2010 10:02 AM, Diogo_Silva wrote:
Hello
Recently, I've been dealing with a seemingly simple problem. I have a table
with two columns filled with values from a test I made (say, amount of
precipitation and Months measured). Now, instead of plotting a typical
linear graphic with
Philippe,
ad 2)
I totally agree that alt+f1 is the better and more comfortable option here. The
main reason I tried to test some of the functionality that is typically display
outside the R console, such as plotting and ?topic (and honestly, I did not
realize from the start that alt+f1 was
On 06/06/10 10:45, Bunny, lautloscrew.com wrote:
Philippe,
ad 2)
I totally agree that alt+f1 is the better and more comfortable option here. The main
reason I tried to test some of the functionality that is typically display outside the R
console, such as plotting and ?topic (and honestly, I
Hi,
If we know the residual of the model, how could we calculate the Log
likelihood?
It depends on the model (lm? glm? nls?). Why not using directly the
logLik function?
x - rnorm(100, 10)
y - rnorm(100, 10)
model1 - lm(y ~ x)
logLik(model1)
model2 - glm(y ~ x, family=gaussian)
logLik(model2)
On Sun, Jun 6, 2010 at 12:51 AM, beloitstudent schu...@beloit.edu wrote:
Thanks for the suggestion...but R still doesn't like it. Now I have 3 error
messages. It seems to dislike my *err=y* command. I'm going to continue
trying. Thanks for your help! If you happen to spot anything else,
You can't specify it in rthin, which I can understand for the simple
reason that this violates the independence of the sampling. If you put
a fixed limit on your resampling, the chance of being selected depends
on when some point is selected.
You could do it by hacking the object :
rthin.exact -
Hi,
I have a set of user defined package which I have installed in 2.8.1 for quite
some time. I installed 2.11.0 and 2.11.1 a couple of days ago while still
having 2.8.1 version in my system. For the package, package.skeleton works fine
in R 2.11. However, it comes problem when I run Rcmd
I'm sory for my weak english. I need to analyze this subject :
x1 x2 x3 x4 x5 x6 x7 x8 x9 x10
y
0 0 1 0 0 1 0 0 1 0
czarne
1 1 0 0 0 0 1 0
Hi,
I've just added width/heightDetails methods following Paul's
suggestion. I kept a duplicate of all on-the-fly grob size
calculations; it is necessary to ensure that the table cells adjust to
the content which can be subsequently edited (e.g changing the
colnames to plotmath expressions).
This help list is not intended for solving your assignments. But
you're honest about it, so I'll describe for you shortly what the
output is. How to interprete that output is up to you.
see inline comments.
On Sun, Jun 6, 2010 at 12:38 PM, wojak121 rotworm...@op.pl wrote:
I'm sory for my weak
Hello,
how can I load an external picture/image file to screen?
I want to use locator() then to get coordinates of that picture...
...in other words I want to use R to do some measurements on a picture.
Therefore I need to load the image into R display,
and that displaying needs to work
Hi,
Try this,
library(png)
example(readPNG)
HTH,
baptiste
On 6 June 2010 13:46, oliver oli...@first.in-berlin.de wrote:
Hello,
how can I load an external picture/image file to screen?
I want to use locator() then to get coordinates of that picture...
...in other words I want to use R
Dear Anita and Joris,
Please see https://stat.ethz.ch/pipermail/r-help/2010-March/230280.html,
posted to r-help in March.
Regards,
John
John Fox
Senator William McMaster
Professor of Social Statistics
Department of Sociology
McMaster University
Hamilton,
Does anyone know how to get cumulative frequency percentage and how to
access library (equate)?
Thanks.
Grace
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PLEASE do
Thanks very much for helping me, i will think about what you've write :
thanks again. :
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Andy Zhu wrote:
Hi,
I have a set of user defined package which I have installed in 2.8.1 for quite
some time. I installed 2.11.0 and 2.11.1 a couple of days ago while still
having 2.8.1 version in my system. For the package, package.skeleton works fine
in R 2.11. However, it comes problem
For cumulative frequencies, see ?cumsum
https://stat.ethz.ch/pipermail/r-help/2007-September/141499.html
To access the _package_ equate, you have to install it first. Then,
you just use library(equate).
Cheers
Joris
On Sun, Jun 6, 2010 at 3:26 PM, ying_chen wang gracedrop.w...@gmail.com wrote:
Yvonnick NOEL yvonnick.noel at uhb.fr writes:
Hello,
I have the very same problem. Plotting code that used to work before I
upgraded to Ubuntu Lucid Lynx does not work anymore. For example:
plot(1:10)
text(6,4,expression(pi))
The 'pi' greek letter appear as a \neq (different from
Good morning!
I have two datasets with the same structure, one containing all my
values and the second one that update same of these values (see example
below).
I want to create a data.frame with all the values of the first dataset
except when an entry is present in the second dataset, in
Hi all,
does anyone have any practical examples of how this command can be used in
prettyR?
add.value.labels(x,value.labels)
I mean, can we have the SPSS style of using numbers and/or labels if we want to?
Thank you for your time
Jason
Dr. Iasonas Lamprianou
Assistant Professor
Dear R people,
I have a couple of questions about post-doc analyses for 2 by 2 within
subjects ANOVA. I conducted a psycholinguistic study that combined a 2 by 2
design and a latin square design. Specifically, I had 32 items each of which
generated 4 conditions. Participants saw each of the 32
I'm looking for a way to create a pdf report that contains multiple graphs on
one page as well as tables (ideally with some lines below categories etc.) . I
have used the pdf(filename) followed by dev.off() to date but this prints one
graph per page and does not seem to have functionality for
Hello,
I am using the igraph package, and I wonder how to add or modify
informations on a drawn graph.
Example:
library(igraph)
M - matrix( nc=12, nr=12 , 0)
M[ 1,]=c(0,1,0,0,1,1,0,0,0,0,0,0)
M[ 2,]=c(1,0,1,1,1,0,0,0,0,0,0,0)
M[ 3,]=c(0,1,0,0,0,1,1,0,0,0,0,0)
M[ 4,]=c(0,1,0,0,0,1,0,0,0,0,0,0)
Sir,
I want to fit a multinomial logistic regression in R.I think mlogit() is the
function for doing this. mlogit () is in packege globaltest.But, I can not
install this package. I use the following:
install.packages(globaltest)
Can you help me?
Regards,
Suman Dhara
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Hi everyone,
I want to do a maximum likelihood estimation for the Generalized Dynamic
Conditional Correlation (GDCC) Model of Hafner and Franses (2009), but I
don't know how exactly. I hope you can help me. This is what I have so far.
Well first of all Hafner models the conditional covariance
Which editor could I use on Windows? The program that already works with
TinnR... will work with this new editor? Thanks!
On Sat, Jun 5, 2010 at 11:40 PM, Joris FA Meys [via R]
ml-node+2244582-437396255-277...@n4.nabble.comml-node%2b2244582-437396255-277...@n4.nabble.com
wrote:
Tinn-R is
On 06/06/10 19:26, bjlwilkin...@gmail.com wrote:
I'm looking for a way to create a pdf report that contains multiple graphs on
one page as well as tables (ideally with some lines below categories etc.) . I
have used the pdf(filename) followed by dev.off() to date but this prints one
graph per
Hi Hadley,
On 5/31/10 9:51 PM, Hadley Wickham wrote:
There's no easy way to do this because behind the scenes geom_ribbon
uses grid.polygon.
A possible workaround might be to have grid.polygon draw multiple
polygons, one for each interval. We can do this by constructing vectors
with
Sorry, that in the last message the tables were messed up. Here is a link to
the tables http://www-scf.usc.edu/~hex/data.txt
http://www-scf.usc.edu/~hex/data.txtThanks!
On Sun, Jun 6, 2010 at 10:18 AM, Xiao He praguewaterme...@gmail.com wrote:
Dear R people,
I have a couple of questions
For multiple figures on one page have a look at
An introduction to R (pdf, downloadable from the net), page 72
For printing the data have a look at:
library(gplots)
help(textplot)
HTH
Jannis
bjlwilkin...@gmail.com schrieb:
I'm looking for a way to create a pdf report that contains
suman dhara suman.dhara89 at gmail.com writes:
I want to fit a multinomial logistic regression in R.I think mlogit() is the
function for doing this. mlogit () is in packege globaltest.But, I can not
install this package. I use the following:
install.packages(globaltest)
Can you help me?
To install this package, start R and enter:
source(http://bioconductor.org/biocLite.R;)
biocLite(globaltest)
Hope that helps
On Mon, Jun 7, 2010 at 12:15 AM, Ben Bolker bol...@ufl.edu wrote:
suman dhara suman.dhara89 at gmail.com writes:
I want to fit a multinomial logistic
Sorry if I could not understand your problem properly. Are you looking for
this type of example?
assign(paste(x, 1, level, sep=), 4)
x1level
[1] 4
Thanks,
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On 6/6/10 7:46 PM, Karsten Loesing wrote:
Hi Hadley,
On 5/31/10 9:51 PM, Hadley Wickham wrote:
There's no easy way to do this because behind the scenes geom_ribbon
uses grid.polygon.
A possible workaround might be to have grid.polygon draw multiple
polygons, one for each interval. We can
On Sun, 6 Jun 2010, suman dhara wrote:
Sir, I want to fit a multinomial logistic regression in R.I think
mlogit() is the function for doing this. mlogit () is in packege
globaltest.But, I can not install this package. I use the following:
To add to some of the previously given advice:
-
Hi,
ggplot2 and lattice also provide convenient ways to arrange multiple
plots on a page. For tables, there's also a function based on Grid
graphics in the gridExtra package.
A typical dummy example might be,
library(ggplot2)
library(gridExtra)
p = qplot(Sepal.Length, Petal.Length, data=iris,
Dear Ana,
I copy here the response that I sent to you directly, for the other people
reading this thread on r-help:
I've now had a chance to look at your model. Because of its unusual
structure, it's hard for me to know its identification status. For example,
you specify that almost all of the
try this:
a
V1 V2
1 AAA 1
2 BBB 2
3 CCC 3
u
V1 V2
1 BBB 22
a$V2[match(u$V1, a$V1)] - u$V2
a
V1 V2
1 AAA 1
2 BBB 22
3 CCC 3
On Sun, Jun 6, 2010 at 12:41 PM, Mario Valle mva...@cscs.ch wrote:
Good morning!
I have two datasets with the same structure, one containing all my
baptiste auguie baptiste.auguie at googlemail.com writes:
Hi,
Try this,
library(png)
example(readPNG)
[...]
If rasterImage would be available, I think this would be the right hint.
But it isn't.
So I can load the pic, but not display it. :(
Ciao,
Oliver
Hi All-
I have been trying to separate data into columns - specifically the
date - and then aggregate the rest of the data to calculate summer
hourly means. However, now I would like to calculate hourly means just
over one day at a time. And, I am not able to figure out how to do
this. I
This calculates hourly means:
aggregate(z, trunc(time(z), 01:00:00), mean)
Precip mphDeg DegF Fuel Rel volts DegMx
mphgust wm
(06/01/06 00:00:00) 0 2.375 97.625 40.8 NA 37.00833NANA
2.708333 0.3
(06/01/06 01:00:00) 0 1.800 97.700 38.6 NA
I am sure there is a more sophisticated way, but I would do it like this:
hourindex - round(as.numeric(YYMMDDHHmm)/100,digits=0)
hourly.means - aggregate(dataset,hourindex,mean)
For aggregate you just need an index with the length of the amount of
rows that your dataset has, that assigns a
Dear r-listers,
I need to pass a string to a function. However the length of the string is
dependent on the length of a vector.
b-length(h)
v-paste(rep(names(ts$a[,1:b,]),ts$a[,1:b,]),sep=)
Is it possible somehow to pass this as an argument to a function later on ?
Regards,
//M
Wild guess, but it looks like you are looking at :
ts - list(a=1:5)
names(ts$a) - letters[1:5]
v-paste(rep(names(ts$a[,1:b,]),ts$a[,1:b,]),sep=)
sapply(v,function(x){eval(parse(,text=x))})
$`rep(names(ts$a[1]),ts$a[1])`
[1] a
$`rep(names(ts$a[2]),ts$a[2])`
[1] b b
There might be a way doing that in R, but if you really need to take
measures of a picture in some standardized way, I suggest you take a
look at ImageJ. More than R that seems the right tool for the job.
Some people have been experimenting with connecting ImageJ and R, but
even without connection
Very simple as explained in the help files:
X - 1:5
X
[1] 1 2 3 4 5
add.value.labels(X,letters[1:5])
[1] 1 2 3 4 5
attr(,value.labels)
a b c d e
1 2 3 4 5
X
[1] 1 2 3 4 5
X didn't change.
X - add.value.labels(X,letters[1:5])
X
[1] 1 2 3 4 5
attr(,value.labels)
a b c d e
1 2 3 4 5
X
Take a look at eclipse :
http://www.splusbook.com/R_Eclipse_StatET.pdf
And yes, your program should work. The editor doesn't do anything else
but sending your code to R. It is R that decides what to do with it.
Cheers
Joris
On Sun, Jun 6, 2010 at 7:25 PM, RGtk2User iagoco...@gmail.com wrote:
Hi all,
Thanks a lot for anyone's help in advance.
I am trying to find a way to compute the day-to-day return (log return) from
a n x r matrix containing, n different stocks and price quotes over r days.
The time series of prices are already split by using unstack function.
For the
I am trying to generate a plot whose x-axis values are the following:
data_out[,1]
[1] 1979 1958 1937 1916 1895 1874 1853 1832 1811 1790 1769 1748 1727 1706
1685 1664 1643 1622 1601 1580 1559
[22] 1538 1517 1496 1475 1454 1433 1412 1391 1370 1349 1328 1307 1286 1265
1244 1223 1202 1181 1160
Try:
plot(, xaxt='n', )
axis(1, at=c(1,2,3,4,5, ... all the rest of them ...) )
You might also need to use the label argument to axis()
-Don
At 5:18 AM +0200 6/7/10, mau...@alice.it wrote:
I am trying to generate a plot whose x-axis values are the following:
data_out[,1]
[1]
That is! Match, not merge is the solution.
Ahhh, memory, memory...
Thanks a lot!
mario
On 07-Jun-10 0:09, jim holtman wrote:
try this:
a
V1 V2
1 AAA 1
2 BBB 2
3 CCC 3
u
V1 V2
1 BBB 22
a$V2[match(u$V1, a$V1)]- u$V2
a
V1 V2
1 AAA 1
2 BBB 22
3 CCC 3
On 7 June 2010 01:16, Oliver oli...@first.in-berlin.de wrote:
baptiste auguie baptiste.auguie at googlemail.com writes:
Hi,
Try this,
library(png)
example(readPNG)
[...]
If rasterImage would be available, I think this would be the right hint.
It is available when you use the latest
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