similar to: plot/screen

Dear R helpers I would like to make a plot where the symbols were the numbers of the corresponding classes, i.e, samples of class 1 would the symbol 1, samples of class 2 would have symbol 2,.... Is this possible? Thank you Luis -- Kit SAPO.ADSL.PT Apenas 50 ?. Adira j? em http://www.sapo.pt/kitadsl

Dear helpers I want to use rpart several times in a loop to build a classification tree. My problem is that rpart needs a formula as argument and for that the variables need to have names and this doesn't happen in my case. Every iteration in the loop has a different dataset with several variables (ex. 38 or more) and so I can't type the names by hand every time. Is there any function

Hello everybody. I'm trying to send the result of a decision tree for latex, but I do not get with the package(xtable), there is a package that make this export Export this for latex marital.status = Divorced | educational.num <= 12: <=50K (1795.0/90.0) | educational.num > 12 | | hours.per.week <= 41: <=50K (302.0/58.0) | | hours.per.week > 41 | | |

Hi everybody! Is there any package or functions to make Partial Least Squares analysis with R? Thanks a lot Luis -------------------------------------------- sapo.pt/kitadsl -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

Hi I made a 3d plot with scatterplot3d, but I would like to rotate it to achieve the best view of the data. Is this possible? Thanks a lot Luis -------------------------------------------- sapo.pt/kitadsl -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",

Hi again. Thank you for the tips but I don't know what is a X server. I remember that I?m working with my own notebook. Is this possible? I could also try to run it in my faculty. thanks Luis -------------------------------------------- sapo.pt/kitadsl -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hello I was doing PCA (principal component analysis) with a DNA expression matrix (7000 rows/38 columns; from golubEsets) but I had the following problem "Error:cannot allocate vector of size 397051 Kb In addition: Warning message: Reached total allocation of 119Mb: see help(memory.size)" I've already done some filtering (reduced to 3051 rows) but the problem remains, only the

Hi, I have a microarray matrix 3000x70 for example (genes x experiments). This data has more than 2 classes. I would like to make some filtering on the genes. For example, I would like to exclude genes with the same mean expression across all classes. This is a problem of ANOVA H0:mu1=mu2=...=muk H1: at least one is different First question: Do you think Anova is reasonable for this? Second

Hello, I'm new with R. I need some help; I have a matrix of data to wich i want to apply the function dudi.acm to perform multiple correspondence analysis. However to use it all variables must be factors, so how can i turn each column of the matrix into a factor? I've tried as.factor. It works isolated for each column, but when I form the matrix of all factors it doesnt work. Please

hello R-users, I'm trying to port from S+4 a library called S2HTML. generic function HTMLExport, when called for a lm object, uses HTMLExport.lm which itself calls HTMLExport.list to export the summary. My problem is that HTMLExport.list may itself call HTMLExport (and so HTMLExport.list) for components of the lists that are lists themselves (like "terms" component of an lm object).

Hello! I need to classify a data set with 19 variables and 9 classes using Logistic Regression(on R). I know that when we have only 2 classes we can use glm() to estimate the coefficients of the model. But I don?t understand how can I do a classification task with Logistic Regression on a data set with 9 classes! Does anybody know how can I estimate these coefficients (of a model with 9

>Subject: Error: cannot allocate vector of size 554 Kb > Does anyone know how I can avoid this error? > > Error: cannot allocate vector of size 554 Kb > > I think my computer should have enough memory to allocate such vector. Hi, I had that problem already. In windows I did this C:\Programas\R\rw1060\bin\Rgui.exe --max-mem-size=400M in the icon path of R. You'll

Hi again With arima0 the problem was solved but what are the diferences between arima and arima0? I have another question. I fit the model to the data and I make some predictions. But I also want to calculate MAPE based in the last 3 observations available. Is it possible? Can I obtain the fitted values from the model? thanks~ luis -- SAPO ADSL.PT, apanhe j? o comboio da Banda Larga. Kit

Dear helpers, I'm working with expression matrices (DNA microarrays) and my professor suggested me to investigate the possibilities of Xgobi. Searching the net I found that I could use it with R. Is that true? How can I do this? I'm working on a Windows ME notebook. I've already got xgobi.zip from CRAN and xgobi.zip from Professor Brian Ripley

Hi again, Thanks for the tips on Xgobi. I'll try them. Now I have another question. There is a package (not submitted to CRAN yet), that I would like to use, but it has the extension .tar, so it's for Linux platforms am I rigth? Is it possible from those files to compile for Windows? Nice weekend for all Luis -------------------------------------------- sapo.pt/kitadsl

I don't understand where is my problem. I tried the problem suggested by Prof. Brian Ripley data(USAccDeaths, package="ts") and it worked. So this is not a machine or configuration problem. This is my series (dataset1.ts) Jan Feb Mar Apr May Jun Jul Aug 1998 20957656 22280838 28048581 32286754 36456729 35575315 34127179 34363108 1999

Hi, Does anybody know some package or function that computes canonical variates? Luis & Janete -------------------------------------------- sapo.pt/kitadsl -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

I have a question about the D'Agostino skewness test and the Anscombe-Glynn kurtosis test. agostino.test(x, alternative = c("two.sided", "less", "greater")) anscombe.test(x, alternative = c("two.sided", "less", "greater")) The option "alternative" in those two functions seems to be the null hypothesis. In the output, the

Hello, I'm willing to plot a sequence of densities on a 3d graph, something like ----------------------------------------------------------------- x <- sapply(1:10, function(i)rnorm(1000)) f <- sapply(1:10, function(i)density(x[,i], from=-5,to=5)$y) grid <- density(x[,1], from=-5,to=5)$x win.graph() persp(grid1, 1:10, f,theta=-50, phi=30, d=2)

Hello Everyone,   This is my first attempt to do something in R. As a precursor to a Willingness to Pay analysis, I want to conduct a Mixed Conditional Logit analysis but am unsure how to proceed because of some nesting within my data.   Below is some data and code that illustrate what I’m trying to do. The data are based on responses to a conjoint survey obtained during pilot testing. In the