Re: [R] factor expansion

2012 9:19 Asunto: RE: [R] factor expansion Hi I did not see any answer yet but can you explain what you mean by factor expansion? Something like expand.grid? Petr -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Jose Bustos Melo

[R] 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

[R] 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

[R] 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

[R] 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

[R] 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

[R] 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:

Re: [R] Creating categories from a date-time object

Dear Jim,   Thank you so much, I really apreciate you advice. That was what I was trying to do so much!!!. I just wanted to create a new variable depending of these criteria of office time. I realize in this issue the function format is good to understand well. Saludos,  José

[R] Creating categories from a date-time object

Hello R-List, I have a question about recoding from a date time object.  I have tried using as.POSIXct objects and Chron Objects, but I can get the what I want. I need to create a new variable from a date-time object, adding Office Time for those events that happens between 08:00:00 to

[R] 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

[R] Regression-Discontinuity Analysis

Hi everyone, In social reseach, economic and others fields Non-Equivalent Groups Analysis shows an issue when data are biased between Posttest and Pretest. Many authors talk about the Regression-Discontinuity Analysis wich is used when dispersion are different in both groups (in this case

[R] 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

[R] 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

[R] 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

[R] Rpart modelling a decisión tree and getting probability

Hello everyone, I working in a public health project and we have created a Decision Tree for categorical variables usign the package rpart. Our goal is to develop a model (Using the ROC tool) in order to predict presence/ausent of  diabetes and get a better understanding  of what are the

[R] 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.

[R] Life Cycle Assessment with R.

Hello everyone,  There's something really important about climate change and how many institutions around the globe are looking for softwares solutions in order to achieve they (and everyone) needs to improve life conditions in all the planet. Currently, they're many comercial softwares working

[R] scatterplot3d using colors in groups

Hi everyone, I would like to improve my plot and I was wondering if someone can help me whith it. I'm trying this plot using two groups, but I want to choice the colors (the black and white circles) but I don't know how to change it from here. These are my sentences: myplot3d-

[R] 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.

[R] R course in Santiago, Chile/ Curso de R en Santiago, Chile (Confirmado)

(English Below)Estimados,  Acabamos de confirmar el lugar y la fecha del primer curso de R en Santiago, Chile. El curso se realizará el día Miércoles 9 y Jueves 10 de Marzo en las dependencias de la Facultad de Recursos Naturales de la Universidad Andres Bello, ubicada en República 440 (Metro 

[R] Free R Course Chile / Curso Gratis R (Universidad Andres Bello)

(English version below) Queridos R-usuarios!   Con mis colegas estamos creando un curso básico de nuestra espectacular herramienta R. Nos hemos dado cuenta que muchas personas usan software comercial y pensamos que sería una buena oportunidad para dar un curso gratis acerca de R. Por otro

[R] Curso de R en Santiago, Chile

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

[R] Lacunarity analisys using R

Hi R-people, I have done spatial and geostatistics for some time and now I am interested in concentration indexes. There is one index named Lacunarity.  Is there any extension like that in R? Thank you all, José Bustos [[alternative HTML version deleted]]

[R] R instalation on Ubuntu 7.10

Hi everyone, I'm trying to change the operative systems in the Lab Biology. Now We are using Ubuntu 7.10 and we are trying to install the R software. Someone can send some step to do this instalation easy? Like for dummies, because we are so novice in this system. Thank you in