Daniel Malter umd.edu> writes:
>
> Let's say I have an equilateral triangle. Then, the three Euclidean
> distances between points A, B, and C are all equal. That is,
> dist(AB)=dist(AC)=dist(BC). Let the points A, B, and C have
> (x,y)-coordinates (0,0), (2,0), and (1,sqrt(3)). Then, MDS shoul
Also try the asp parameter in plot.
plot(fit2$points, xlab="Coordinate 1", ylab="Coordinate 2",main="Metric
MDS",type='n',asp=1)
text(fit2$points, labels = c('A','B','C','D'), cex=1)
Hope it helps
mario
On 02-Apr-11 22:07, Daniel Malter wrote:
Hi,
I just enco
On Mar 31, 2011, at 3:46 PM, Henrique Dallazuanna wrote:
Take a look in ?assign
On Thu, Mar 31, 2011 at 5:42 PM, Noah Silverman > wrote:
Hi,
I want to create variable names from within my code, but can't find
any documentation for this.
An example is probably the best way to illustrate.
On Sat, Apr 2, 2011 at 7:59 PM, David Winsemius wrote:
>
> On Apr 2, 2011, at 10:20 PM, Joshua Wiley wrote:
>> VA <- cbind(OS = c(.2, 0, 1, -.1, NA, 3, NA),
>> OD = c(.3, -.1, .2, -.1, NA, 0, .1),
>> Desired = c(0.225, -0.075, 0.4, -0.1, NA, 0.75, 0.1))
>
> VA <- cbind(VA, 0.75*pmin(VA[, "OS"],
Sorry, I did not get the question because I read it too sloppily. I hope this
is not homework. You can proceed along this example:
set.seed(32345)
#Value of observation
value=rpois(60,100)
#Day of observation
day=sample(1:1080,50,replace=F)
day=sort(day)
#Assume 3 years
#Assume months have all
On Apr 2, 2011, at 10:20 PM, Joshua Wiley wrote:
Dear List,
I am trying to take the weighted average of two numbers (visual acuity
measures from the left and right eye). For each row, the lowest value
should get a weight of .75, and the highest a weight of .25. My
problem is, if one value i
Hi,
How can I generate a random correlation matrix, R={r_ij}, where some
off-diagonal elements being zero?
Thanks in advance.
Joe
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Dear List,
I am trying to take the weighted average of two numbers (visual acuity
measures from the left and right eye). For each row, the lowest value
should get a weight of .75, and the highest a weight of .25. My
problem is, if one value is missing (NA), the remaining one should get
a weight
The ?cut function should work for that. Have you tried?
D.
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Check whether x, y, or glm have been redefined. If not, restart R.
D.
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Michael,
Although this is a rather old post I'm responding to, I recently came across
it and have a suggestions for getting rid of the legend. Simply modify the
code associated with the function and stuff it into a new function,
edm<-function (x = seq(0, 1, length.out = nrow(z)), y = seq(0, 1,
Hi guys,
I'd like to thank you ahead of time for any help that you can offer me.
I'm kind of stuck trying to do this.
I have a data frame with dates and values (note: only two columns shown):
head(test)
date value stop
1 01/02/05 100 12/01/07
2 07/16/05 20
Hi, list,
I'm using Rterm on windows, I find that when I try to complete the code
with , the rest of the input from cursor will be wiped out.
How to reproduce(`|' means the cursor position):
> write.table(file='foo',fileEn|="")
Then hit ,
R will try to complete the code, but the rest is gone:
Dear Deepayan,
thank you very much, this works great.
Cheers,
Marius
On 2011-04-01, at 13:58 , Deepayan Sarkar wrote:
> On Thu, Mar 31, 2011 at 3:26 AM, Marius Hofert wrote:
>> Dear Deepayan,
>>
>> thanks for answering. It's never too late to be useful.
>>
>> I see your point in the minimal
On Sat, Apr 02, 2011 at 08:24:07AM -0400, ivo welch wrote:
> curiosity---given that vector operations are so much faster than
> scalar operations, would it make sense to make uniroot vectorized? if
> I read the uniroot docs correctly, uniroot() calls an external C
> routine which seems to be a sca
I swear, I didn't touch it!
I can't fit GLM's anymore, and I can't make it talk english (for
googling the error messages) anymore.
y <- c(1,1,0,1,0,1)
x <- c(2,7,3,5,2,4)
glm(y~x, binomial)
Fehler in runif(length(pi)) :
Element 1 ist leer;
Der Teil der Argumentliste 'length' der berechne
One way that u might have thought of is to create plot in PDF in R and the
use pdftools.
Additionally one can also think of running R script using R CMD and then
using pdftools in a .sh script file if u r in linux.
I am not aware of pdftools capability in R.
On 2 April 2011 23:01, Vijayan Padmanab
On Apr 2, 2011, at 1:15 PM, statfan wrote:
The definition of the "mean vector" is essentially what my question
boils
down to. In the functions details, the author states
"We sample x ~ T(mean, Sigma, df) subject to the rectangular
truncation
lower <= x <= upper. Currently, two random numb
Hi,
I just encountered what I thought was strange behavior in MDS. However, it
turned out that the mistake was mine. The lesson learned from my mistake is
that one should plot on a square pane when plotting results of an MDS. Not
doing so can be very misleading. Follow the example of an equilatera
Dear R Help group
I need to run a command line script from within R session. I am not clear
how i can acheive this. I tried shell and system function, but i am missing
something critical.can someone provide help?
My intention is to create a pdf file of a plot in R and then attach
existing files fro
The definition of the "mean vector" is essentially what my question boils
down to. In the functions details, the author states
"We sample x ~ T(mean, Sigma, df) subject to the rectangular truncation
lower <= x <= upper. Currently, two random number generation methods are
implemented: rejection sa
Here's one way .
Lines<-"x1 x2 x3 x4 x5 x6
NA NA 3 4 NA NA
5 3 4 NA NA NA
7 3 4 4 NA NA
11 3 4 5 NA NA
67 4 4 NA NA NA"
d <- read.table(textConnection(Lines), header = TRUE,
colClasses=c("integer"))
closeAllConnections()
res = t(apply(d, 1, function(x) ave(x,is.na(x),FUN=cumsum)))
print(res
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Love- ItSee msToMeA Dream There are times when all you need is a touch;
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PLEASE do read the
On Apr 2, 2011, at 11:16 AM, David Winsemius wrote:
On Apr 2, 2011, at 6:02 AM, Erich Neuwirth wrote:
The problem of changing the default font used fpr the windows
graphics
device seems to be quite complicated.
As I wrote already
windowsFonts(myfont="Consolas")
par(family="myfont")
will
Thanks so much Josh. That absolutely does help. I was just stuck on the
function regexpr and didn't consider how handy the other string handling
functions would be. As far as attaching 'i' to 'vector', that was indeed a
typo. As I was going through my code to make it more readable (at least that
wa
On Apr 2, 2011, at 11:06 AM, statfan wrote:
I am sampling from the truncated multivariate student t distribution
"rtmvt"
in the package {tmvtnorm}. My question is about the mean vector. Is
it
possible to define a mean vector outside of the truncated region?
Thank you
in advance for any h
I am sampling from the truncated multivariate student t distribution "rtmvt"
in the package {tmvtnorm}. My question is about the mean vector. Is it
possible to define a mean vector outside of the truncated region? Thank you
in advance for any help.
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Wensui,
use google and search for "r stats scripts" and find among others:
http://cran.r-project.org/doc/contrib/Lemon-kickstart/kr_scrpt.html
Tom
- Original Message -
From: Wensui Liu
Date: Saturday, April 2, 2011 11:22 am
Subject: [R] recommendation on r scripting tutorial?
To: r-hel
Good morning, dear listers
I am wondering if you could recommend a good tutorial / book for r scripting.
thank you so much in advance!
WenSui Liu
Credit Risk Manager, 53 Bancorp
wensui@53.com
513-295-4370
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On Apr 2, 2011, at 6:02 AM, Erich Neuwirth wrote:
The problem of changing the default font used fpr the windows graphics
device seems to be quite complicated.
As I wrote already
windowsFonts(myfont="Consolas")
par(family="myfont")
will make the windows graphics device use Consolas as the
defa
http://www.gardenersown.co.uk/Education/Lectures/R/basics.htm#t_test
--- On Thu, 3/31/11, arkajyoti jana wrote:
> From: arkajyoti jana
> Subject: [R] how to do t-test in r for difference of mean
> To: r-help@r-project.org
> Received: Thursday, March 31, 2011, 9:07 AM
> I am trying to do t-test
On Apr 1, 2011, at 7:46 PM, David Winsemius wrote:
On Apr 1, 2011, at 6:21 PM, Pam Allen wrote:
I have a question about wireframe 3-D plots and how to apply
colors. I have
a large dataset of river flow (m^3/s) over time, and I have coded
these
flows based on their height. I would like t
On Apr 2, 2011, at 4:21 AM, stan zimine wrote:
Hi.
Googled but did not found the answer for the following little issue.
how to force R gui on windows (maybe a specific setting) to always
show the last line of output in the window console.
My program in R makes measurements every 5 mins in
curiosity---given that vector operations are so much faster than
scalar operations, would it make sense to make uniroot vectorized? if
I read the uniroot docs correctly, uniroot() calls an external C
routine which seems to be a scalar function. that must be slow. I am
thinking a vectorized versi
If I were you, I would use another GUI. The standart GUI (to mee) seems
to be very basic and lacks many handy features (e.g. autosave etc). I am
not sure which GUI does what you want, but just try a few (list is
sorted from intuitive to more complicated):
-RStudio (still in Beta but very nive)
The problem of changing the default font used fpr the windows graphics
device seems to be quite complicated.
As I wrote already
windowsFonts(myfont="Consolas")
par(family="myfont")
will make the windows graphics device use Consolas as the
defaut font for labels.
Therefore, a function call like
p
Hi.
Googled but did not found the answer for the following little issue.
how to force R gui on windows (maybe a specific setting) to always
show the last line of output in the window console.
My program in R makes measurements every 5 mins in indefinite loop and
prints results in the console
Ben Hunter wrote:
>
> I'm stuck here. The following code works great if I just use it on the
> command line in a 'for' loop. Once I try to define it as a function as
> seen
> below, I get bad results. I'm trying to return a vector of column indices
> based on a short string that is contained in a
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