similar to: Automatically install package dependencies

Hi, I have a very simple doubt. Look: > teste <- c("A","B","C") > teste2 <- paste(teste[1],teste[2],teste[3],sep="+") > teste2 [1] "A+B+C" > How to make it automatic, like I try to use paste(teste,sep="+") but the paste dont get the teste elements separately to join again in a unique element. Exist any

Hi, I have a table like that: > datatest var1 var2 var3 1 1 1 1 2 3 1 2 3 8 1 3 4 6 1 4 5 10 1 5 6 2 2 1 7 4 2 2 8 6 2 3 9 8 2 4 10 10 2 5 I need to create another table based on that with the rules: take a random sample by var2==1 (2 sample rows for example): var1 var2 var3 1 1

Hi, I try to plot bars with different colours in a barchart graphic. My idea is make that all X-Levels from trat var with different colour (grey scale). I search for a solution but dont find any. Any help? Thanks dados <- structure(list(Medias = c(0.994169096209855, 0.99416342412449, 0.974683544303797, 0.954430379746835, 0.669047619047619, 0.999999998475569, 0.994163424124514,

Hi, I have two tables and I need to merge both. I use the merge command, but in this way the name must be exactly. How I can make to compare independently of upper or lower-case? Look: data1<-data.frame(journal=c("Ecology","Environmental Entomology","Neotropical Biology And Conservation"))

Hi, I dont know if this a coding rule or a program bug. When I write this function below it work: a <- c(1,2) for(i in a){ print(i) } [1] 1 [1] 2 But if I write this function with line space it dont work. a <- c(1,2) for(i in a){ print(i) } Error: unexpected '}' in "}" I remember that in early R version this limitation dont exist. This is a bus, a rule or a

Hi, this is a simple question I have this data.frame: > test <- data.frame(var1=c(1,1,1,1,1,1),var2=c("a","a","b","c","d","e"),var3=c("a1","a1","b1","a1","c1","d1")) > test var1 var2 var3 1 1 a a1 2 1 a a1 3 1 b b1 4 1 c a1 5 1

Hi, I have this vector: > A <- c("00:00:36","00:02:18") > A [1] "00:00:36" "00:02:18" I use as.difftime to convert this to time vector based > B <- as.difftime(A) > B Time differences in secs [1] 36 138 attr(,"tzone") [1] "" Now i try to make a sum > sum(B) Time difference of 174 secs The sum is ok, but

Hi, I try to change the panel name in a xyplot without success. Look this example from xyplot manual: xyplot(Murder ~ Population | state.region,data=states) The panel title are: Northeast, South, North Central, West, that are factor from state.region. I need do change some names and, for example, put some of these in italic. I dont find how change this. I looking for this in Deepayan

Hi, I try to make a xyplot withou colors. I try: pdf(file="test.pdf") trellis.device(color=F) Depth <- equal.count(quakes$depth, number=8, overlap=.1) xyplot(lat ~ long | Depth, data = quakes) dev.off() the graphic is showed without colors in a X device but it dont work saving directly on pdf device. How I made to put color off in trellis device? Thanks Ronaldo -- 2ª lei - Na

Hi, I have a R package with some functions made all of then only with R code. I use the command R CMD build to build a package that I can install on linux, windows or mac, because all the code is only R code. But I have some problems with R version. For each new R version I need to rebuild the package to be install in this new version. It is possible to make a package without this R Version

Hi, I try to create a data.frame from results of a tapply. I have this results from tapply: -------------------------- , , tapinom sp 1 1 2 3 4 5 6 7 8 9 10 1 NA NA NA NA NA NA NA NA NA NA 4 NA NA NA NA NA NA NA NA NA 4 5 NA NA NA NA NA NA NA NA NA NA 6 NA NA NA NA NA NA NA NA NA NA 7 NA NA NA NA NA NA NA NA NA NA , , wasm sp 2 1 2 3 4 5 6 7 8 9 10 1 1 NA NA NA NA NA

Hi, I have a newbie doubt. I try to use metaMDS in R, it is OK, but the stress that I get is 16.32, in other programs stress is showed like 0.173. I don't find a good explanation about this calculations on books, I think that R show stress em a percentage data (0-100) and other software in a proportional data (0-1), it is correct? Thanks Ronaldo -- 11ª lei - Você deve conhecer mais de

Hi, when I use the install.packages() function this make a download of packages, try do compile/install packages and delete the downloaded file. But if the compilation of package fail, I need to make the download again because R delete all downloaded file. How I can make install.packages dont delete the downloaded file automatically to be used again in case of compilation fail? Thanks

Dear R-help I want to display an image file in a new plot frame. SVG is my preferred format, but I can also consider PNG, GIF, JPEG, TIFF, and PPM (from ImageMagick). By way of background (although not material to this posting), the image file is generated by a call to 'dot' (part of the 'Graphviz' suite) after the required .dot file has been produced using hand-crafted R code.

Buenas dias a tod@s, Quisiera saber si alguien tiene experiencia con el procesamiento de imágenes (en formatos JPEG o PNG) en R y la búsqueda de similitudes / diferencias entre ellas. La idea de lo que me gustaría hacer es: tomar una imagen, cargarla en R y luego analizar su estructura. Para las dos primeras tareas, la libreria ReadImages en CRAN me ha sido útil, pero para la segunda, hasta

Hi, I try to use a substitute function to generalise a equation. I have this: expression(1+2*pred+3*lat) I need to define the equation in function of x1 and x2 variables. Also I try to define who is x1 and x2. I try this: X1 <- "pred" X2 <- "lat" Now I need substitute pred and lat in equation by x1 and x2 defined on X1 and X2 above, I try this way: >

Hi, I try to make a plot like this: Y | | | o | o o | o o | o o |o o o |-------------------------------- 0 10 20 30 40 50 60 70 80 90 100 (A) 100 90 80 70 60 50 40 30 20 10 0 (B) or B 100 90 80 70 60 50 40 30 20 10 0 Y |-------------------------------- | | o

Hi, I have this message: Warning message: In mer_finalize(ans, verbose) : iteration limit reached without convergence (9) How to increase this limit? I try control=list(maxit=1000) I try maxIter and it dont work. Any idea Thanks Ronaldo -- Opportunities are usually disguised as hard work, so most people don't recognize them. -- > Prof. Ronaldo Reis J?nior | .''`.

Hi, I need a help in a survival analysis using survreg function with weibull distribution from survival package. Look the data sample: ########## Start of script dados <- structure(list(TFD = c(20L, 34L, 1L, 2L, 3L, 3L, 50L, 26L, 1L, 50L, 21L, 3L, 13L, 11L, 22L, 50L, 50L, 1L, 50L, 9L, 50L, 1L, 13L, 50L, 50L, 1L, 6L, 50L, 50L, 50L, 36L, 3L, 46L, 10L, 50L, 1L, 18L, 3L, 36L, 37L, 50L, 7L, 1L,

Hi, I'm testing rKward and it's become a great GUI for R on linux, mainly for new linux users. I'm not a new linux user and I use Emacs for my own R's script. But I always try new GUIs or IDEs for to recommend to my students. The most dificult for new R and Linux users is: I have installed R on my linux but I dont found the R icon. This happen because R on linux have only the