search for: busto

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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 [[alternative
2007 Apr 12
1
making a counter of consecitive positive cases in time series
...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} else y<-c(y,s)} y x Thk u all! José Bustos --------------------------------- [[alternative HTML version deleted]]
2007 Jul 08
2
Making Gehan-Breslow test for Survival data
...vivals functions can be tested by the Log-rank test and others, for example the Gehan-Breslow. The graham breslow work with the alpha values. But I don't know how is the Gehan-Breslow test with R. Somebody know a type function?.. or other suggestions? Any help will be really appreciated Jos? Bustos Marine Biologist Master Apllied Stat Program University of Concepci?n
2008 Apr 21
1
Analysis of Epidemiological Data Using R
...cal 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/ /'_ --- Master Apllied Stat Program (*) \(*) -- University of Concepci?n
2011 Aug 08
1
Classification trees problem.
...;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) text(fit, use.n=TRUE) #Someone can help me?? I hope someone can help! Respect, José Bustos [[alternative HTML version deleted]]
2011 Apr 21
1
numbers and superscripts in the same unit of measurement.
...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 example with numbers and supercripst in the same unit of measurement. Any idea? Saludos, José Bustos Biologo Marino Magister en Estadistica Aplicada Director AESPRO www.aespro.cl [[alternative HTML version deleted]]
2012 Apr 26
1
creating a package?
...le 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. Saludos, José Bustos www.aespro.cl Asesorias Estadisticas Celular 95939144 [[alternative HTML version deleted]]
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 [[alternative HTML version deleted]]
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 [[alternative HTML version deleted]]
2010 Dec 30
2
Curso de R en Santiago, Chile. Gratis!
...e curso lo adjunto aqui, para que le hechen una miradita. Dependiendo de la participacion y afluencia, realizaremos otros cursos de R basados en diferentes topicos de Estadistica y/o Epidemiologia. Usando las redes sociales como facebook podemos. Muy atento a sus comentarios, me despido. José Bustos Bioestadistico Escuela de Enfermeria Pontificia Universidad Católica de Chile Celular 95939144 http://www.facebook.com/?sk=messages&tid=1248634633579#!/note.php?note_id=475603118010&id=49677888734 [[alternative HTML version deleted]]
2007 Feb 22
2
Number of files to be transferred?
I'm writing a wrapper around a large number of rsyncs that need to happen, and it would be great if I could parse the output of a running rsync and find out how far along it is. To do this, I would need to know how many files the rsync is going to transfer. If I run 'rsync -avz --progress', it tells me how many files it is considering, but not how many it actually needs to update.
2008 Apr 27
2
R instalation on Ubuntu 7.10
Se ha borrado un texto insertado con un juego de caracteres sin especificar... Nombre: no disponible Url: https://stat.ethz.ch/pipermail/r-help/attachments/20080427/53a3d8c7/attachment.pl
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
2006 Oct 03
2
maybe use voronoi.findrejectsites?
...ea with projections, but i need cut the polygons left. On other words, i need cut the polygons in the worked area. R help say that use the command voronoi.findrejectsites, but in this command i need put the numbers, any way...this command not cut!! do you can help me? Thank you for help me! José Bustos Master Stat Program Universidad de Concepción Chile jbustosm@udec.cl, jbutosmelo@yahoo.es --------------------------------- [[alternative HTML version deleted]]
2008 May 05
1
proportional test on epicalc library vs. Jerrold H. Zar.
...wer. Using the follow command don't give the same answer. library(epicalc) power.for.2p(0.75, 0.50, 50, 45, alpha = 0.05) with this command the Power = 0.6402. But in the Book we find Power=0.72. ?what it's the correct answer?...?Zar or Chongsuvivatwong? Thank guys! O__ ---- Jos? Bustos M. c/ /'_ --- Master Apllied Stat Program (*) \(*) -- University of Concepci?n, Chile
2008 Jul 03
2
Relative Mortality Risk second part
...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 monoclonal gammopathy of undetermined significance. New England J Medicine, 346:564?569, 2002. Thank! O__ ---- Jos? Bustos M. c/ /'_ --- Master Apllied Stat Program (*) \(*) -- University of Concepci?n Chile
2008 Jul 03
1
R-help Digest, Vol 65, Issue 4
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. Thank! O__ ---- Jos? Bustos M. c/ /'_ --- Master Apllied Stat Program (*) \(*) -- University of Concepci?n
2011 Feb 28
0
R course in Santiago, Chile/ Curso de R en Santiago, Chile (Confirmado)
...o que esta sea solo en comienzo entre la interacción de profesionales en relación al análisis estadístico en base en R. Más información en: http://www.aespro.cl/index.php?option=com_content&view=category&id=10&Itemid=16 Cualquier duda o consulta háganme saber. Saludos cordiales,  José Bustos Magíster Estadística Aplicada (UDEC) Cel 95939144 -------------------------------Dear R-users,  We have already confirmed date and place where we're going to do the first R básic course in Santiago, Chile. This course will start March 9h and 10th, from 9AM to 4.30PM at Facultad de Recursos Na...
2011 Jan 27
0
Curso R Gratis (Universidad Andres Bello)
...  Por otro lado, si tú eres un usuario avanzado de R y tienes ganas de contribuir a este curso gratis. Por favor, siéntase libre de compartir  contribuyendo con ideas, libros en pdf, R-links o cualquier material de enseñanza de R será extremadamente beneficioso.   Atte.,   Alex Mellado y José Bustos Escuela de Salud Pública Pontificia Universidad de Chile Marcoleta 434, Santiago. Chile Cell phone: +56 9 95939144 ----------------------------------------------------------------   Dear R-users!   I work in the Catholic University of Chile here in Santiago. Some of my colleagues at the...
2011 Jan 28
0
Free R Course Chile / Curso Gratis R (Universidad Andres Bello)
...  Por otro lado, si tú eres un usuario avanzado de R y tienes ganas de contribuir a este curso gratis. Por favor, siéntase libre de compartir  contribuyendo con ideas, libros en pdf, R-links o cualquier material de enseñanza de R será extremadamente beneficioso.   Atte.,   Alex Mellado y José Bustos Escuela de Salud Pública Pontificia Universidad de Chile Marcoleta 434, Santiago. Chile Cell phone: +56 9 95939144 ----------------------------------------------------------------   Dear R-users!   I work in the Catholic University of Chile here in Santiago. Some of my colleagues at the...