Displaying 20 results from an estimated 2000 matches similar to: "R instalation on Ubuntu 7.10"
2008 Apr 30
2
fCopulae
Hello,
Hela wrote :
My problem in a few words is as folow:
I used the fCopulae packages because i have 2 series which are already
transformed in the uniform domain (the space of the copulas functions) and i
estimated with type archmList() from 1 to 22, but i don't know their
names:for exemple the type=4 is the Gumbel Copula...and for the others i
can't have any idea about how can i find
2011 Dec 12
3
Variables from a Dataframe
Hello everyone,
I want make a variable selection from a dataframe, but when I build this new object (using cbind) the new table (which is a matrix) I lost all the original factor names in the variables. I get 1,2,3....
Someone would be so kind and tell me if there's is a ny way to get variables in a dataframe, but not changing these factor to numbers?
Thank you all.
José
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2011 Oct 14
3
change uppercase variables
Hello everyone,
I'm trying to change the name variables of a big dataset. Here's more than 300 variables. The point is that I have to match it with another dataset that have same variables, but in lowercase, the I can use rbind and do my work.
Is there any function for changing uppercase or lowercase variables?
Thank you in advance!
José
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2011 Dec 12
3
obtener variables desde un dataframe
Hola amigos de R en Español,
Estoy eliguiendo unas variables desde una dataframe, pero cuando creo un objeto nuevo ( con cbind) las nueva tabla (que es una matriz) se pierden los nombres de los factores. Aparecen numeros (1,2,3..).
Alguien me puede decir si existe un comando para extraer las variables a un nuevo dataframe, pero sin cambiar el nombre, ni la codificacion ?
Gracias,
José
2011 Apr 21
1
numbers and superscripts in the same unit of measurement.
Hola everyone,
I'm doing an analisys about abundance of a planctonic specie in Robinson Crusoe Islan and I am having a hard time just adding the superscripts and the 100 (one hundred) in the measure of abundance.
Perhaps this is so basic to you, but I need to put the real unit of measure. Individuals / 100 cubic meters.
I have been looking in websites and R-list and there is not any
2007 Apr 12
1
making a counter of consecitive positive cases in time series
Hi all..RCounters!
I´m working with standarized time series, and i need make a counter of consecutives positves numbers to make a cumulative experimental funtion. I have x: the time series (0,1) and y: my counter, i have this for step. What is wrong?.. any can help me please!
x<-rbinom(15,1,.3)
y<-NULL;s<-0
for (i in 1: length (x))
{if (x[i]>0)
{s<-s+x[i]
s=0}
2008 Apr 21
1
Analysis of Epidemiological Data Using R
Hi everyone,
I'm studying the manual name: Analysis of Epidemiological Data Using
R and Epicalc, maked by: Virasakdi Chongsuvivatwong and Edward McNeil.
And I can't find the data base that they use in some examples, this are
the names:
Chapter7.Rdata,Chapter8.Rdata,Chapter9.Rdata
Somebody can tell me how can I have this files?
Thk!
Jos?
O__ ---- Jos? Bustos M.
c/ /'_ ---
2011 Aug 08
1
Classification trees problem.
Hello Everyone,
I'm doing a Classification trees with categorical explanatory variables using library rpart and I would like to do a prediction for some data imputs. I don't know where's a function or how can I do it?. Is there someone can help ?? ¿. Here's the code that I'm using.
library(rpart)
fit <- rpart(Kyphosis ~ Age + Number + Start, data=kyphosis)
plot(fit)
2012 Apr 26
1
creating a package?
Dear R users.
I'm trying to know how to create a function. I have developed a big code that use a file and makes many process and then creates a table that is exported as txt.
The point is to make something like a function. I need to make it easy for others, so they can run it. This has a particular name?
I will be very gratefull and placed if any of you can provide some lights.
2012 May 29
1
Creating a new R mirror in Chile
Hello everyone,
I would like to create a new R mirror en Chile and I would be very placed if any of you who are familiar doing it can help us.
We are looking for manuals and materials need it.
Thank you in advance,
José Bustos
Data Scientist at www.aespro.cl
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2010 Dec 30
2
Curso de R en Santiago, Chile. Gratis!
Estimados,
A todos quienes estan insterados y estan en Stgo de
Chile les tengo una muy buena noticia. Desde hace ya algunas semanas,
nos hemos sentado a la mesa con Alex (Epidemiologo) a discutir la
necesidad de desarrollar un curso de R para principiantes. No solo
porque es necesario unirse en torno a un projecto como es el R, sino que
es una oportunidad para muchos cientificos (como
2010 Sep 21
3
Web forum - should I make one?
Hello,
this might be little off-topic, but still... I have not found any official web
forum for R users. Did I look good? If not, I'm sorry and shame on me! :-)
Such forums are very probably the most common way to share information about
all sorts of problems, to ask and get answer. See http://forums.opensuse.org/
as an example. Admins, developers, users, do You think to have such forum
2008 May 05
1
proportional test on epicalc library vs. Jerrold H. Zar.
Hi everyone,
I'm working with the Epical library, specicatly using the power test in
proportions. I think this test is not working like in the book:
Biostatistical Analysis (4th Edition): Jerrold H. Zar
In the example 23.25. (I attach this Pic) It's not the same answer.
Using the follow command don't give the same answer.
library(epicalc)
power.for.2p(0.75, 0.50, 50, 45, alpha =
2008 Jul 03
2
Relative Mortality Risk second part
Hi everyone,
We are looking for some data sets working with relative risk mortality.
so, someone know where can I find the data.mgus dataset and the data.mgus?
Using 1384 records from Minnesota.
This data set are used in the :
Robert A. Kyle, Terry M. Therneau, S. Vincent Rajkumar, Janice R. Offord,
Dirk R. Larson, Matthew F. Plevak, and L. Joseph Melton III. A long-term
study of prognosis in
2011 Oct 04
1
joining tables
Hello everyone,
I know this is very basic question for you people. I'm working with mani diferent tables, but everyone has the same variables. (V1, V2, V3). The only think that I need to do is to put together this tables. In other words, creating just one big table with all the cases showed in the smaller tables.
For example:
tabla1<-data.frame(v1,v2,v3)
tabla2<-data.frame(v1,v2,v3)
2011 Sep 14
2
Image processing and analysis with R
Hello everyone,
I'm working in a project to create an special analysis about visualization in some animals and its behaviour, through checking eye movement. The point is this is very important to get data from the image as a resume of what this animal sees. I think an RGB histogram like photoshop does, but I need to get the data from this histogram analysis and I was wondering about using R
2012 Mar 19
1
Dotplot: how to change size in the y lab ?
Hi everyone,
I'm trying to reduce the font size in the Y exe in this plot:
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=150
Anyone knows how to do it?
I have checked the argument lab.cex and cex, but any of these works!
if you want to check us this code:
### read the data
d <- read.csv( file( "http://addictedtor.free.fr/graphiques/data/150/data.txt" ) )
2012 Sep 12
1
factor expansion
I'm trying to use a data base from SPSS and get all data
representing the true data. I would like to use a variable as expansion
data. In our data base we have the variable with the factor expansion,
but we have not idea how to set it in R.
Any idea?
Thanks in advance!
José
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2012 May 03
1
Identifying case by groups in a data frame
Hi everyone,
I would like to identify the case by groups that is just bigger that
avg plus sd. For example, using species as group and petal.wid as my
variable in the iris data.
What's the better way to doit? creating a function?
So,the question is to identify the single element of each species that is just larger than a cut-off point (i.e. larger than mean + sd)
I made this, but I can not
2012 Feb 28
1
Dotplot edition
Hi everyone,
Im very new with R and I would like to change the size text (names) in the ylab in a dotplot. I have checked many webpages and R sites, but I have not found any help.
This is the same structure of the plot in R graph Gallery: http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=150
thanks in thanks is advance
José
Mi code is this:
### setup the key
k <- simpleKey( c(