Grokbase Groups R r-help April 2010

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1,009 discussions - 3,419 posts

  • Dear "R" list, Our statisticians usually give us results back in a PDF format. I would like to be able to copy and past tables from "R" output directly into a Microsoft Word table since this will ...
    Max GuntherMax Gunther
    Apr 30, 2010 at 10:13 pm
    May 7, 2010 at 1:09 pm
  • Hi, This is not meant to be critical of R, but is intended as a possible source for improvements to R. SAS needs the competition. I am reasonably knowledgeable about R SAS-(all products including ...
    Roger DeAngelis(xlr82sas)Roger DeAngelis(xlr82sas)
    Apr 5, 2010 at 8:13 pm
    Apr 7, 2010 at 7:12 am
  • I am working on plotting a response surface using wireframe(). The default style/orientation is z y | \ | \ | \ | \ | \ | \ | \ | \|________________x Now what I want the orientation of axes is: z /0\ ...
    Array chipArray chip
    Apr 6, 2010 at 11:12 pm
    May 2, 2010 at 7:51 pm
  • Does anyone know of a method that I can get the intersection where the red and blue curves meet i.e. the value on the x-axis? x <- 1:10 y <- 10:1 plot(x,y) abline(lm(y~x),col="blue") ...
    Muhammad RahizMuhammad Rahiz
    Apr 23, 2010 at 5:06 pm
    Apr 25, 2010 at 3:33 pm
  • Hi the list, I use rgl to produce a 3D graph. I would like to "show" this graph to some collaborator. Is there a way to save it and send it to someone else? Christophe Genolini
    Apr 15, 2010 at 9:24 am
    Apr 29, 2010 at 7:17 am
  • Dear all, How do stamp my graphs with date and time somewhere like left corner of the graph (not the plotting area). I know date() and Sys.time(), but where to? Thanks. Jun
    Jun ShenJun Shen
    Apr 21, 2010 at 9:41 pm
    Apr 25, 2010 at 3:36 am
  • I recently came to realize the true power of R for statistical analysis -- mainly for post-processing of data from large-scale simulations -- and have been converting many of existing Python(SciPy) ...
    Kyeong Soo (Joseph) KimKyeong Soo (Joseph) Kim
    Apr 27, 2010 at 5:30 pm
    May 2, 2010 at 8:25 pm
  • Dear all, What is the right test to test whether the median of two groups are statistically significant? Is it the wilcox.test, mood.test or the ks.test? In the text book I have got there is ...
    Cheba meierCheba meier
    Apr 6, 2010 at 12:21 pm
    May 12, 2010 at 11:44 am
  • Hello, I am trying to model a type II functional response of number of prey eaten (Ne) against number supplied (No) with a non-linear least squares regression (nls). I am using a modification of ...
    Apr 28, 2010 at 11:43 am
    Apr 29, 2010 at 8:10 am
  • hello, i'd appreciate help with my glmer. i have a dependent which is an index (MH.index) ranging from 0-1. this index can also be considered as a propability. as i have a fixed factor (stage) and a ...
    Kay CichiniKay Cichini
    Apr 12, 2010 at 2:11 pm
    Apr 23, 2010 at 3:52 pm
  • Dear R-Help, With the attached data set, I am still getting incorrect bwplots Puts the boxes on the wrong x-axis values # look especially at 0 and 3. How do I fix this? What is happening? Thanks, Jim ...
    James RomeJames Rome
    Apr 16, 2010 at 8:54 pm
    Apr 20, 2010 at 2:44 am
  • Having some difficulties with understanding how tapply works and getting return values I expect Data: dataframe. DF DF$Id $D $Year....... Id D Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ...
    Steven mosherSteven mosher
    Apr 26, 2010 at 4:52 am
    Apr 28, 2010 at 6:05 am
  • Hi, any one with experience in merging files i have different files, some of the files, have the same fields, so i would like to merge them *File 1:* field a,b,c,d,e,f *File 2:* field a, c, e, m, n ...
    Alex JamesonAlex Jameson
    Apr 27, 2010 at 3:34 pm
    Apr 27, 2010 at 9:55 pm
  • Hi All! I have 2 plain questions: 1.) I know that very primitive question, but that to grant it, that the drawing on the screen divided up onto which part draw for example: layout(matrix(1:4,ncol=2, ...
    Tamas barjakTamas barjak
    Apr 23, 2010 at 4:52 pm
    Apr 26, 2010 at 8:15 pm
  • R experts, How could I extract the week number from a date vector (in Date class) such that week numbering (week 1...2...) begins (May 01) and ends (October 31) on the same specific dates each year? ...
    Michael HosackMichael Hosack
    Apr 20, 2010 at 5:59 pm
    Apr 22, 2010 at 8:07 am
  • Hi,every one .I have searched the solutions in the forum for replacing my date value which is in a data frame ,01/01/2000 to 01-01-2000 using replace function but got the following warning message ...
    Apr 15, 2010 at 5:51 pm
    Apr 16, 2010 at 6:44 am
  • Dear R?ers. I?ve got a dataset with age and year of diagnosis. In order to age-standardize the incidence I need to transform the data into a matrix with age-groups (divided in 5 or 10 years) along ...
    Apr 5, 2010 at 6:46 pm
    Apr 9, 2010 at 4:12 pm
  • Hi, I generated an R package but at running R CMD check, I got the following error message for the first data file: *** installing help indices Formats: text html latex example f1 text html latex ...
    Carol whiteCarol white
    Apr 16, 2010 at 9:40 am
    Apr 18, 2010 at 8:08 pm
  • Dear all, I understand identical (a,b) will tell me if a and b are exactly the same or not. But what if they are different, is there anyway to tell which element(s) are different? Thanks. Jun
    Jun ShenJun Shen
    Apr 8, 2010 at 1:31 am
    Apr 8, 2010 at 8:20 pm
  • Hello I wanted to compare two fingerprint images. How do you do with R?. Is there a role for cross-correlation of images? Thanks -- ========================================================= Juan ...
    Juan Antonio Gil PascualJuan Antonio Gil Pascual
    Apr 2, 2010 at 6:52 pm
    Apr 4, 2010 at 7:37 pm
  • Hi, I am working with the package nlme, and I tried creating a new correlation class (which, according to the help pages, is possible if you write a few new method functions). Anyways, I think I am ...
    Michael Steven RooneyMichael Steven Rooney
    Apr 21, 2010 at 3:41 pm
    Apr 23, 2010 at 2:48 pm
  • I've generated a levelplot showing the density distribution of a species derived from survey transects, with lon, lat co-ordinates. I'd like to overlay this on a map of the study region specified ...
    Simon GoodmanSimon Goodman
    Apr 21, 2010 at 6:27 pm
    Apr 23, 2010 at 11:19 am
  • Hey there, I need to count the matches of a sequence seq=c(2,3,4) in a long vector v=c(4,2,5,8,9,2,3,5,6,1,7,2,3,4,5,....). With sum(v %in% seq) I only get the sum of sum(v %in% 2), sum(v %in% 3) and ...
    Apr 21, 2010 at 2:16 pm
    Apr 22, 2010 at 2:23 am
  • Dear R experts: I attempted to compile c source code into DLL using "R CMD SHLIB" but I found the DLL run in R is almost twice slower than the codes compiled in C++ 6.0 when I chose "release" option ...
    Apr 15, 2010 at 11:23 pm
    Apr 19, 2010 at 10:15 pm
  • When read.table imports a table that includes a header called 'Date', it tries to recognize the date format. For example, if one imports this data from Yahoo finance, the Date column is automatically ...
    Jeroen OomsJeroen Ooms
    Apr 16, 2010 at 7:32 pm
    Apr 17, 2010 at 1:55 pm
  • Readers, Please refer to attached example data files. It seems that the merge function fails for the latter section of the data set. Command terminal output: x[, 2] y[, 2] 01:01:01 0.5418645 ...
    Apr 2, 2010 at 2:55 pm
    Apr 7, 2010 at 11:11 am
  • Dear All, I've been?searching for?appropriate codes to compute the rate of change and the curvature?of ?nonparametric regression model whish was denoted by a smooth function?but?unfortunately?don't ...
    Apr 2, 2010 at 8:36 am
    May 10, 2010 at 4:45 pm
  • Hi, I am trying to place my own functions in the nlme environment: The following statement works: environment(coef.corSPT) <- environment(getS3method("coef","corSpatial")) but this one returns an ...
    Michael Steven RooneyMichael Steven Rooney
    Apr 27, 2010 at 1:49 am
    Apr 28, 2010 at 12:31 am
  • I need to create 10 matrices. say matrix 1-10. matrix_1 is 1 by 1 matrix_2 is 2 by 2 matrix_3 is 3 by 3 . . . matrix_10 is 10 by 10 I am just wondering if there are some functions in R that are ...
    Apr 22, 2010 at 4:08 pm
    Apr 27, 2010 at 10:58 pm
  • Hi every one I?m new to R and I cant figure our how to use the loop to do the following task, any help would be very kind of every one. I have a file called (table3.txt) that contains over 1000 row ...
    Apr 16, 2010 at 10:35 am
    Apr 23, 2010 at 11:43 am
  • I have a data frame called "pose": DESCRIPTION QUANITY CLOSING.PRICE 1 WHEAT May/10 1 467.75 2 WHEAT May/10 2 467.75 3 WHEAT May/10 1 467.75 4 WHEAT May/10 1 467.75 5 COTTON NO.2 May/10 1 78.13 6 ...
    arnaud Gabouryarnaud Gaboury
    Apr 14, 2010 at 8:57 am
    Apr 21, 2010 at 12:08 am
  • I want to get the plot like this, ...
    Apr 14, 2010 at 4:45 am
    Apr 17, 2010 at 2:19 am
  • Hello Everyone, Â I am a newbie with about a month's worth of experience using R. I've just spent a little time learning how to work with date values. Mostly, this has involved converting text values ...
    Paul MillerPaul Miller
    Apr 8, 2010 at 3:14 pm
    Apr 16, 2010 at 1:17 pm
  • Hey Everyone, Im fresh new in R, and Im supposed to write a code to give me a correlation between two rankings. So I have two ranking lists, which contain file names, e.g.: Ranking list 1: ...
    David NemerDavid Nemer
    Apr 9, 2010 at 3:22 pm
    Apr 15, 2010 at 8:31 am
  • Hi all, I am trying to minimize the quardratic form w'Aw, with certain constraints. In particular, (1) A=(a_{ij}) is n by n matrix and it is symmetric positive definite, a_{ii}=1 for all i; and ...
    Li liLi li
    Apr 10, 2010 at 3:58 pm
    Apr 11, 2010 at 4:54 pm
  • Hi, I have numerical variable that I want to recode into categories '0' and '1 and more' and do analysis with that data. I have tried various of possibilities to do so, but I am sucked and nothing is ...
    Vlatka Matkovic PuljicVlatka Matkovic Puljic
    Apr 7, 2010 at 5:31 pm
    Apr 10, 2010 at 1:46 pm
  • Hi Guys I have two data frames which I would like to merge on two conditions. I am doing the following (abstract form) <- merge(df1,df2, by=c("Col1","Col2")) It is giving me a null ...
    Abhishek PratapAbhishek Pratap
    Apr 6, 2010 at 7:54 pm
    Apr 7, 2010 at 12:54 am
  • Dear all, I want to do a logistic regression. So far I've only found out how, in a dataset of complete cases. I'd like to do logistic regression via max likelihood, using all the study cases ...
    Desmond D CampbellDesmond D Campbell
    Apr 4, 2010 at 10:44 pm
    Apr 6, 2010 at 11:19 am
  • Hi R users, where can I find the equations used by acf function to calculate autocorrelation? I think I misunderstand acf. Doesn't acf use following equation to calculate autocorrelation? [image ...
    Zhenjiang xuZhenjiang xu
    Apr 29, 2010 at 10:22 pm
    Dec 6, 2011 at 1:17 pm
  • Hello I tried the odfWeave package today, by running the formatting.odt and example.odt files that are included with the package. They both ran fine, but when I try to open them in my OpenOffice ...
    Apr 28, 2010 at 4:58 pm
    May 7, 2010 at 8:40 pm
  • Hi there, I've got a column vector in a csv file as follows, and I need to add 11 hours to each of them. Is there a way that I can do it? (The actual file size is much bigger than this.) Time ...
    Carol GaoCarol Gao
    Apr 29, 2010 at 1:33 pm
    Apr 29, 2010 at 3:26 pm
  • Hello, I have a data.frame: name col1 col2 col3 col4 AA 23 54 0.999 0.78 BB 123 5 1 0.99 AA 203 98 0.79 0.99 I want to get mean value data.frame in terms of name: name col1 col2 col3 col4 AA 113.0000 ...
    Yuan JianYuan Jian
    Apr 29, 2010 at 3:56 am
    Apr 29, 2010 at 7:59 am
  • Hi All Slightly lost on how should I pass values to a function I am calling using apply. apply( veh_drg_animal1[ , c("readCount","gene_length")] ,1, stats() ) here stats is a custom function where I ...
    Abhishek PratapAbhishek Pratap
    Apr 27, 2010 at 6:10 pm
    Apr 27, 2010 at 7:36 pm
  • Hi, I've had a little problem for several weeks now. It is annoying and therefore I will ask for help now: When I write a script with several iterations, I make it write out a text file to save the ...
    Laetitia SchmidLaetitia Schmid
    Apr 25, 2010 at 8:14 pm
    Apr 26, 2010 at 10:30 pm
  • Hi all, I'm trying to load a csv file in which all the variables must be of type number.The object is a dataframe.When i load the file what i get is a dataframe in wich the variables are of type ...
    N VialmaN Vialma
    Apr 19, 2010 at 8:12 am
    Apr 21, 2010 at 4:03 pm
  • Dear all, I am using the following code to generate a legend in my plot (consisting of both bars and points), but end up with boxes around my points: legend(10, par("usr")[4], c("A", "B", "C", "D"), ...
    Steve MurraySteve Murray
    Apr 15, 2010 at 5:10 pm
    Apr 21, 2010 at 11:10 am
  • Dear list, What are the cross-platform, serverless databases in R? Sincerely, KeithC.
    Apr 18, 2010 at 4:56 am
    Apr 19, 2010 at 11:46 am
  • Dear R-users, I want to check if certain values are from random distribution, that includes values between 0-1. So, it is not really normal even though shapiro.test says it is highly normal... Can I ...
    Atte TenkanenAtte Tenkanen
    Apr 16, 2010 at 4:11 pm
    Apr 17, 2010 at 7:32 am
  • First my excuses if I keep bugging everyone in this list, but I am a newbie, and tend to find some behaviour that looks unexpected to me; and I would really appreciate to be pointed to some location ...
    Uwe DippelUwe Dippel
    Apr 15, 2010 at 8:10 am
    Apr 16, 2010 at 2:18 am
  • Dear R users, I am currently writing the documentation for my first package. I have created a short user manual using sweave/pdflatex which is distinct from the manual/summary-of-package-functions ...
    Sébastien BihorelSébastien Bihorel
    Apr 14, 2010 at 10:32 am
    Apr 15, 2010 at 10:47 pm
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David Winsemius: 228 posts Gabor Grothendieck: 105 posts Peter Ehlers: 69 posts Tal Galili: 64 posts Uwe Ligges: 59 posts Greg Snow: 47 posts Erik Iverson: 43 posts Henrique Dallazuanna: 42 posts Jim holtman: 40 posts Duncan Murdoch: 38 posts Changbin Du: 33 posts Steve Lianoglou: 32 posts Petr PIKAL: 31 posts arnaud Gaboury: 28 posts Marc Schwartz: 27 posts Barry Rowlingson: 24 posts Bert Gunter: 23 posts Charles C. Berry: 23 posts Duncan Murdoch: 23 posts Jim Lemon: 22 posts
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