Displaying 20 results from an estimated 300 matches similar to: "how to do this sum?"
2003 Nov 16
1
Mixtures of Von-mises distributions
Dear all,
I would like to fit a von mises mixture to my data using the EM
Algorithm.
Unfornately, existing packages (including circstats) doesn't provide
such method.
So, does anybody have written such code ?
Big thanks,
Christophe, (R newbie)
2006 Mar 15
3
GAM using R tutorials?
Hi all,
I am trying to use GAM to work on some data... Are there any resources
providing hands-on tutorial/guide on how to do GAM on data in R?
Specifically, I am not sure about which model to choose, and smooth models
with which effective degree-of-freedom shall I use...
I knew there is a book titled: GAM: an introduction using R. Unfornately our
local library does not have it... so that's
2002 May 29
4
Why is.integer() doesn't work with single values?
Hi all,
I don't understand the behavior of is.integer():
> x <- integer()
> is.integer(x)
[1] TRUE
> x <- 10
> is.integer(x)
[1] FALSE
> x <- 1:10
> is.integer(x)
[1] TRUE
Why is.interger() returns FALSE if x has only one element? And how can
someone check if x is an integer but contains only one value? (R 1.5.0
on Linux i386)
Thanks, Sven
2005 Nov 23
2
How to plot two different lines with different color with the same "plot" function?
Hi,R_Help!
I have done something like this:
>x<-seq(412,612,1)
>plot(x,dpois(x,512),col="blue",type="l")
>plot(x,dnorm(x,512,sd=sqrt(512)),col="red",type="l")
And now,I want to plot the two lines in the same picture or with the same "plot" action?
What should I do?
And any advises?
Thank you in advance!
仭仭仭仭仭仭仭仭仭仭仭仭仭仭仭仭伖併佇伹
2012 May 15
2
max value
Here is an R problem I am struggling with:
My dataset is organized like this...
subject session variable_x variable_y
01 1 1 <interger values>
01 1 2
01 1 3
01 2 1
01 2 2
01
2006 Dec 05
5
if(){} else{}
Dear R-community,
my data set looks like 'mat' below.
Plant<-c(NA,1,1,1,NA,NA,NA,NA,NA,1);
Value1<-rnorm(1:10);
Value2<-rnorm(1:10);
mat<-cbind(Plant,Value1,Value2);
I receive data from two different sites.
One site is identified by an interger number, the other site has no data in
column Plant=NA.
My pb:
I'm trying to assign labels "A" or "B" to
2009 Feb 17
2
printing out the summary for lm into a txt file
Hi All,
I am trying to run several linear regressions and print out the summay and
the anova reslts on the top of
each other for each model. Below is a sample progarm that did not work. is
it possible to print the
anova below the summary of lm in one file?
thanks for your help
######################################################
data<-read.table("data.txt", header=T,
2005 Nov 28
3
How Can I change the acf's plot type?
In the R Document, the usage of the acf() is as follow:
acf(x, lag.max = NULL,
type = c("correlation", "covariance", "partial"),
plot = TRUE, na.action = na.fail, demean = TRUE, ...)
But now I want to get the result picture like:
plot(x,type="l")
or
plot(x,type="p")
How can I do this with acf function?
仭仭仭仭仭仭仭仭仭仭仭仭仭仭仭仭佒伮
伬侎仯仭
2012 Oct 20
2
Help with programming a tricky algorithm
Hi All,
I'm a little stumped by the following problem. I've got a dataset with
the following structure:
idxy ix iy country (other variables)
1 1 1 c1 x1
2 1 2 c1 x2
3 1 3 c1 x3
. . . . .
3739 55 67 c7 x3739
3740 55 68 c7 x3740
where ix and
2005 May 05
2
[LLVMdev] (no subject)
>> In other words, abandoning overflow detection makes the
>> duplication of types redundant, while requiring it would be a
>> great burden on CPUs that don't have overflow exception hardware.
>
>Yes, you're right. This has been a desired change for quite some time
>now. Unfortunately, its a huge impact to nearly every part of LLVM. We
>will
2009 Jul 18
2
Zinb for Non-interger data
Sorry bit of a Newbie question, and I promise I have searched the forum
already, but I'm getting a bit desperate!
I have over-dispersed, zero inflated data, with variance greater than the
mean, suggesting Zero-Inflated Negative Binomial - which I attempted in R
with the pscl package suggested on
http://www.ats.ucla.edu/stat/R/dae/zinbreg.htm
However my data is non-integer with some pesky
2009 May 06
4
[LLVMdev] Suggestion: Support union types in IR
Chris Lattner wrote:
> On May 5, 2009, at 8:09 PM, Talin wrote:
>
>
>> I wanted to mention, by the way, that my need/desire for this hasn't
>> gone away :)
>>
>> And my wish list still includes support for something like uintptr_t
>> - a
>> primitive integer type that is defined to always be the same size as a
>> pointer, however large or
2010 Aug 21
4
basic hist() question
Hi list
I loaded the content of a file dureetasks.txt to variable a. This file
contains an interger per line.
when I print a vector, it displays correctly.
however, when I try to print the histogram, I get this error message
> a=read.table("dureetasks.txt")
> hist(a)
Error in hist.default(a) : 'x' must be numeric
Can you help please?
regards
--
PhD candidate in
2011 Feb 09
1
Question on sapply
Hello All,
Thanks in advance for all help
I have the following vector of strings that I want to split..
> y = c("1/1","2/2", "3/3", "4/4")
> y
[1] "1/1" "2/2" "3/3" "4/4"
> z = strsplit(y,"/")
> z
[[1]]
[1] "1" "1"
[[2]]
[1] "2" "2"
[[3]]
[1]
2004 Nov 14
1
question about the tick label.
Hello,
I am a beginner of R. I want to plot the vectors Y vs. X where X has
continuous interger values. How can I use the name of each element as
the tick label?
Thanks a lot!
Haiyong
2008 Jun 11
1
[LLVMdev] question on constant folding
Hello, LLVMers.
I have a quick question for constant folding.
When I treated a code twice by changing the data type from 'floating point' to 'integer,'
What I found was:
optimization is done better for the code having int's.
E.g., for this simple code:
-------------------------------------------------------------
double foo() {
double i,j;
double sum = 0;
for (i=0;
2013 Jul 30
1
Ayuda
Hola colegas:
He estado usando R Studo para obtener unos reportes que espero me ayuden a
comprender un ejemplo que estoy tomando de la red.
Usando sink("Tabla.txt") , al pedir summay(n), obtengo:
sr tl
1 : 1 1: 4
10 : 1 2:13
18 : 1 3:10
30 : 1 4: 4
47 : 1 7: 9
67 : 1
(Other):34
d
Min. : 1.000
1st Qu.: 2.000
Median : 5.000
2005 May 25
1
The error while using R2WinBUGS
Dear all,
I tried to run WinBUGS model in R by using package R2WinBUGS, but I
failed because of the massage : cannot calculate DIC for model in log
file of WinBUGS14. In fact, the model works in WinBUGS and I can get
summaries of the model, such as density, stats..., except DIC , because
DIC may not be appropriate in this kind of model due to some
reasons(according to the manual of WinBUGS14),
2015 Oct 28
4
RFC: Supporting macros in LLVM debug info
Hi,
I would like to implement macro debug info support in LLVM.
Below you will find 4 parts:
1. Background on what does it mean to debug macros.
2. A brief explanation on how to represent macro debug info in DWARF 4.0.
3. The suggested design.
4. A full example: Source -> AST -> LLVM IR -> DWARF.
Feel free to skip first two parts if you think you know the background.
2005 Aug 26
1
basic anova and t-test question
Hello,
I'm posting this to receive some comments/hints about a rather statistical than R-technical question ... .
In an anova of a lme factor SSPos11 shows up non-significant, but in the t-test of the summay 2 of the 4 levels (one for constrast) are significant. See below for some truncated output.
I realize that the two test are different (F-test/t-test), but I'm looking for for a