similar to: Is there a data/variable explorer in R?

Hi all, I am using "locator" to select the points from a scatter plot... This is all fine. But the problem is that the locator only returns the axis values of the selected points. Instead, I would like to get the index of these select points... The axis values are real-values so it's a bit hard for me to directly reverse-engineer the index nubmers.. How to do that? Thank you!

Hi, I'm very confused about R structures and the methods to go with them. I'm using R for microarray analysis with Bioconductors. Suppose without reading the documentations, what's the best way to explore a data structure when you know nothing about it? I am currently using is() / class() to see what the object is. str() / attributes() to probe inside the object, and

head, tail and fix commands don't really work well if I have large matrix/array for which I would like to be able to scroll up and dow, left and right ... Could anybody please help me? Thanks [[alternative HTML version deleted]]

Dear R users, is there a way to define the color of the title for the legend in lattice? The help page on xyplot has a lot of details on key options just as the new book, but no mentioning of a color attribute for the title. Should I use ltext or is there any other way? Best wishes, Erik [[alternative HTML version deleted]]

Hi all, I have a newbie question: If I have a function with the following documentation: ca.jo(x, type = c("eigen", "trace"), ecdet = c("none", "const", "trend"), K = 2, spec=c("longrun", "transitory"), season = NULL, dumvar = NULL) Let's take "type" as an example... if I omit this parameter when calling the

Hi all, I found that the PCA gave chaotic results when there are big changes in a few data points. Are there "improved" versions of PCA in R that can help with this problem? Please give me some pointers... Thank you! [[alternative HTML version deleted]]

Hi all, I have an array of 10000 x 200 x 200 numbers... which is a time-series of 200x200 2D data... The 1st dimension is the time index. Is there a way to make a movie out of these data - i.e. playback 10000 frames(200x200) at a playback rate per second? Thanks a lot! [[alternative HTML version deleted]]

I have a logit model with about 10 predictors and I am trying to plot the probability curve for the model. Y=1 = 1 / 1+e^-z where z=B0 + B1X1 + ... + BnXi If the model had only one predictor, I know to do something like below. mod1 = glm(factor(won) ~ as.numeric(bid), data=mydat, family=binomial(link="logit")) all.x <- expand.grid(won=unique(won), bid=unique(bid)) y.hat.new

Dear R users, I would like to employ count data as covariates while fitting a logistic regression model. My question is: do I violate any assumption of the logistic (and, more in general, of the generalized linear) models by employing count, non-negative integer variables as independent variables? I found a lot of references in the literature regarding hot to use count data as outcome,

Hi, I need to represent data structures in a figure.stuff like trees with nodes and pointers etc.can someone guide me to a package that does this? -- Rajesh.J [[alternative HTML version deleted]]

Hello, I'm looking for an easy way to display a data.frame (or other variables) page by page, similarly to what is possible on a file using the more command in a standard UNIX shell. Any help would be greatly appreciated. Thanks Alexandre [[alternative HTML version deleted]]

Hi all, I am looking for a command for doing 2D filtering (rectangular or Gaussian) in R... I have looked at ksmooth, filter and convolve but they seem to be 1D... Any thoughts? Thanks a lot! [[alternative HTML version deleted]]

Hi all, Sorry if I ask something that is answered already, but I am new to this list. I need to run IE for testing purposes (unfortunately too many people are still using Windows and I need to make my web pages Windows compatible). I have an existing Windows installation, but I do not want to reboot just to see if a small change in a web page is shown correctly in IE. I have installed wine, but

> x=split(1:1000,1:1000) > str(x) Although str() can suppress long output for vectors, but it can not suppress long output for list. I'm wondering how to suppress the output for long lists.

When I run a summary(anova) I get output for all of the elements (columns) as these are multiple - single anova results. Can I store the F values? I can't find the attribute of the fitted model attributes(fit) that stores these F values, and for that matter, P values. Thanks -- Gareth Campbell PhD Candidate The University of Auckland P +649 815 3670 M +6421 256 3511 E

I'm currently working with some large complex data structures eg list of lists of data_frames containing lots more variables and lists etc. Sometimes, I'd like to be able to bring up a simple representation of the structure I'm working with, minus all of the values it contains (so simply printing the variable doesn't work as its too hard to see structure when there are 1000s of

Hi all, I am reading the MASS book but it doesn't give examples about the diagnosis and model checking for rlm... My data is highly non-Gaussian so I am using rlm instead of lm. My questions are: 0. Are goodness-of-fit and model-checking using rlm completely the same as usual regression? 1. Please give me some pointers about how to do goodness-of-fit and residual diagnosis for

Hi, I''m trying some RJS to update a series of list boxes in which the user selects a state, and the following list gets updated with a list of counties, and the same for the next list of areas. My code works perfectly (albeit a bit slow) on Firefox, but on Internet Explorer it clears the list box (instead of filling it) and Netscape shows all the counties cramped together on one

Hi, I am looking for a R package to draw 3d plot. But not in a static way like scatterplot3d or stuff like that. I would like to make rotate the plot, to zoom/unzoom etc..., actually to render the graph 'dynamic'... (for the biologist and bioinformatician, a R package which permitts to reproduce what pdb viewer does). Does a Way exist to do something like that in R ? Thanks,

I'm using the levelplot function in the lattice package. I am plotting a grid of cells and I want grid lines drawn between cells. I've spent a lot of time trying different options. I've also looked at panel.levelplot. The border parameter seems to be ignored or it doesn't mean cell border color. The panel.levelplot calls grid.rect but forces lwd=1e-5 instead the passed lwd. On