1. 10-14-2010
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Forum: R

R programming and usage, R news, R tips and tutorials

  1. Sticky Thread Sticky: [R Graphics] Beautiful graphics thread

    Hi Everyone, I thought I might start a thread which showcases the graphics abilities of R. I'll start it off with one I just made. This thread...

    Started by TheEcologist‎, 10-17-2012 06:08 AM
    5 Pages
    1 2 3 ... 5
    • Replies: 64
    • Views: 16,758
    11-27-2014, 03:15 AM Go to last post
  2. Sticky Thread Sticky: R News and Updates

    I'm starting this thread out of frustration for my own oversight. blog.revolutionanalytics.com was having an R webinar today (LINK) that looked...

    Started by trinker‎, 08-24-2011 10:41 AM
    8 Pages
    1 2 3 ... 8
    • Replies: 107
    • Views: 18,198
    11-22-2014, 09:28 AM Go to last post
  3. Sticky Thread Sticky: Today I Learned: ____

    I thought it might be nice to just have a place to post some happy little things you learned or (re)discovered about R that makes your life nicer and...

    Started by Dason‎, 01-03-2012 11:39 AM
    22 Pages
    1 2 3 ... 22
    • Replies: 322
    • Views: 36,732
    10-23-2014, 08:26 PM Go to last post
  4. Sticky Thread Sticky: Share your functions & code

    I’m starting this thread as a sharing thread. The power of is in building and sharing on one another’s creativity. I’m often amazed at how people...

    Started by trinker‎, 06-25-2011 04:42 PM
    19 Pages
    1 2 3 ... 19
    • Replies: 273
    • Views: 41,594
    10-20-2014, 11:21 AM Go to last post
  5. Sticky Thread Sticky: Info for R users (Links, Manuals, Books, etc.)

    Note: This original post has been modified to make it easier to find the resources in the thread and to compile them into one location. If you want...

    Started by Tart‎, 08-06-2008 10:22 AM
    7 Pages
    1 2 3 ... 7
    • Replies: 99
    • Views: 34,002
    05-22-2014, 03:07 AM Go to last post
  6. Sticky Thread Sticky: How to use Code tags

    Using Code Tags This thread contains a brief introduction to using code tags and presenting code in general on this forum. I'm biased toward R so...

    Started by Dason‎, 10-17-2012 08:20 PM
    • Replies: 0
    • Views: 5,433
    10-17-2012, 08:20 PM Go to last post
  1. Rcpp

    Does anyone here use Rcpp? I wonder how do I install Linux, and if anyone knows of some study material on it I'm grateful.

    Started by askazy‎, 12-12-2014 04:16 PM
    • Replies: 12
    • Views: 300
    Yesterday, 06:50 PM Go to last post
  2. Export R output table to Excel

    Export R output table to Excel Usually i use SAS Proc Tabulate to generate tables and then i export them to excel. But now my license for SAS is...

    Started by dezo_pp‎, 12-11-2014 10:27 AM
    • Replies: 4
    • Views: 262
    12-19-2014, 12:31 PM Go to last post
  3. Hypothesis test of proportion from a table

    I have a column with 50 data points regarding gender of the respondent (male or female). Is there a direct way to calculate if the number of males in...

    Started by zerohour‎, 12-18-2014 12:41 PM
    hypothesis, proportion
    • Replies: 1
    • Views: 117
    12-18-2014, 01:40 PM Go to last post
  4. Two sample test from same table

    I have a table with 3 columns - the respondent serial number, the gender (male / female) and the height. I want to test if the males are taller than...

    Started by zerohour‎, 12-18-2014 12:48 PM
    testing of hypothesis, two sample
    • Replies: 0
    • Views: 88
    12-18-2014, 12:48 PM Go to last post
  5. Installing Rcmdr into Rstudio on a Mac

    I am trying to install the Rcmdr package into Rstudio on my mac but it keeps crashing as soon as I click the checkmark beside Rcmdr under the...

    Started by brittrlynn‎, 01-15-2014 01:39 PM
    crashing, rcmdr, rstudio, software
    • Replies: 8
    • Views: 675
    12-15-2014, 06:24 PM Go to last post
  6. How to have the effect of density from the hist() in the filled box in the legend?

    how to have the effect of density = 55 or 45 in hist() in the filled box in the legend? Thanks! x1 <- rnorm(100) x2 <- rnorm(100, 2) hist(x1,...

    Started by zzz‎, 12-14-2014 07:43 PM
    • Replies: 2
    • Views: 117
    12-15-2014, 12:21 PM Go to last post
  7. Beta- binomial regression

    I want to calculate the ICC for data by assuming that it follows a beta-binomial distribution. I think I may need to run a beta-binomial regression...

    Started by beano2914‎, 12-15-2014 11:41 AM
    • Replies: 0
    • Views: 82
    12-15-2014, 11:41 AM Go to last post
  8. Problem with family fonts in graph in library(arulesViz) R

    Hi all, I am try to replicate some rutine as a task, lamentably I am having problem with a graph using: library(arulesViz), my command is: ...

    Started by Rodrigo Badilla Cabrera‎, 12-14-2014 07:37 PM
    • Replies: 0
    • Views: 124
    12-14-2014, 07:37 PM Go to last post
  9. Installing the "bivpois" package in r

    I have to install the "bivpois" package in the software R using Windows. Browsing on the Internet on StackOverflow site, I found different solution...

    Started by Pierre‎, 12-03-2014 04:13 PM
    install, package
    • Replies: 2
    • Views: 252
    12-14-2014, 02:51 PM Go to last post
  10. Partial Cross-correlation function - how to compute it on R

    I am getting desperate. Computing a cross-correlation function on R is easy: ccf(x,y, ...) and it's done. But what about computing a Partial...

    Started by basouille‎, 12-14-2014 05:46 AM
    correlation, cross, partial
    • Replies: 1
    • Views: 122
    12-14-2014, 09:20 AM Go to last post
  11. weighted correlation

    Hi Folks, So I have data that looks like: myData <- structure(list(total = c(0.154, 0.223, 0.252, 0.157, 0.196, 0.252, 0.198, 0.162, 0.222,...

    Started by Lazar‎, 12-11-2014 06:06 AM
    correlation, standard errors, weights
    • Replies: 5
    • Views: 258
    12-12-2014, 12:26 PM Go to last post
  12. "cross product" regression of all variables to find highest correlation?

    http://blog.nutonian.com/how-we-beat-nate-silver I just read this article where the Stats team has no understanding of the domain or variables...

    Started by CrunchAndSee‎, 12-11-2014 04:35 PM
    • Replies: 1
    • Views: 161
    12-11-2014, 05:33 PM Go to last post
  13. Package Unmarked

    I am trying to write a script to run occupancy analysis for very large sets of data for multiple species. I have in the past used PRESENCE but...

    Started by dynamicwildlife‎, 12-11-2014 10:16 AM
    • Replies: 0
    • Views: 96
    12-11-2014, 10:16 AM Go to last post
  14. Multilevel Analysis with Intercations

    Hello I'd like to do a regression analysis with interactions, my data has two levels (school classes ans pupils). My variables are: Predictor =...

    Started by St_Fo‎, 12-11-2014 05:34 AM
    interaction effect, multilevel, regression analysis
    • Replies: 1
    • Views: 95
    12-11-2014, 05:51 AM Go to last post
  15. [SOLVED] [package installation error] quantreg

    Not sure how to troubleshoot this one - Im using R version 3.1.2 Could someone advise me what to do please? > install.packages("quantreg")...

    Started by bugman‎, 12-10-2014 02:59 AM
    • Replies: 12
    • Views: 214
    12-10-2014, 07:17 PM Go to last post
  16. party ctree cforest

    Im running a ctree and cforest to preform a analyse. Im qute a noob in this stuff and have a few simple questions When preforming a ctree analyse...

    Started by Freefall1‎, 12-07-2014 04:17 PM
    • Replies: 3
    • Views: 213
    12-08-2014, 06:07 PM Go to last post
  17. Manipulating data

    I have data saved in .csv format. In one of the columns has data of interest to me, I want to count how many numbers beginning with the digit 1, 2,...

    Started by askazy‎, 12-08-2014 10:42 AM
    • Replies: 7
    • Views: 217
    12-08-2014, 05:55 PM Go to last post
  18. Import .ods

    I'm still learning how to use the R, I am currently using linux, I have some data in a table in LibreOffice (similar to microsoft excel) and I wonder...

    Started by askazy‎, 12-07-2014 06:42 PM
    • Replies: 3
    • Views: 217
    12-08-2014, 10:02 AM Go to last post
  19. Trying to do an ANOVA - not sure if it's the right test

    Hi, I am trying to use R to run an ANOVA on survival data from an animal tracking study. My data consists of survival rates by location (reach), and...

    Started by tally‎, 12-06-2014 06:08 PM
    • Replies: 3
    • Views: 241
    12-08-2014, 08:07 AM Go to last post
  20. Differential item functioning for IRT using R programme

    Hello, I will analyze polytomous differential item functioning for IRT. I have a Likert type scale. For example, I want to analyze items in term of...

    Started by rockandrock‎, 12-08-2014 07:58 AM
    dif, lordif, packages, r programming help
    • Replies: 0
    • Views: 92
    12-08-2014, 07:58 AM Go to last post
  21. Best book on R

    Sorry guys, this post may not belong here but I had no idea where else to post. I'm looking for some recommendations for an "excellent" book for R...

    Started by excelmac‎, 12-07-2014 01:39 PM
    books, r programming
    • Replies: 3
    • Views: 204
    12-07-2014, 06:17 PM Go to last post
  22. Moving away from 'for-loops' and into 'apply' for simulations. Help!

    Hello TalkStats community, I have been trying to learn how to do some basic simulations in R. I think I have made some progress, but Im...

    Started by will22‎, 12-03-2014 03:36 PM
    • Replies: 12
    • Views: 395
    12-07-2014, 05:06 PM Go to last post
  23. assocstats() output

    Hello, When I type > assocstats(mytable) I get the output: X^2 df P(> X^2) Likelihood...

    Started by zvio.ab‎, 12-06-2014 07:19 PM
    chi-square, likelihood ratio, pearson
    • Replies: 0
    • Views: 131
    12-06-2014, 07:19 PM Go to last post
  24. How to write an easy for loop for my function in RStudio? (R script below)

    I received an R script from my prof., it can convert an input adjacency matrix to a network format output. It works properly. I'd like to write a...

    Started by fastfoodboy‎, 12-06-2014 09:29 AM
    loop, r statistics, rstudio
    • Replies: 3
    • Views: 187
    12-06-2014, 12:42 PM Go to last post
  25. betareg in R

    Hi all, I have been transitioning from some other statistic and math tools to R and was wondering whether I can somehow retrieve the actually used...

    Started by pzwickl‎, 11-28-2014 05:11 AM
    • Replies: 1
    • Views: 237
    12-06-2014, 10:55 AM Go to last post
  26. preparing R output for LateX using paste

    I need to make a function that does something like this doit=function(x,y) { return(paste=("$\stackrel{",x,"\}\{",y,"\}",sep="")) } ...

    Started by JesperHP‎, 12-04-2014 11:05 AM
    • Replies: 5
    • Views: 217
    12-04-2014, 09:09 PM Go to last post
  27. Convert NA to missing (numeric)

    Hi all: I'm fairly new to the ways of R (I have used SAS for a long time). In my dataset I have a column that marks the date of someone's death....

    Started by lancearmstrong1313‎, 12-04-2014 07:21 AM
    • Replies: 3
    • Views: 182
    12-04-2014, 04:03 PM Go to last post
  28. how to reshape the data.frame from a square matrix to three column

    I have a data.frame like this: row.name a b c 1 1 4 7 2 2 5 8 3 3 6 9 and I want to reshape it like...

    Started by guozihuaa‎, 11-30-2014 10:08 PM
    data.frame, reshape
    • Replies: 3
    • Views: 298
    12-02-2014, 01:56 AM Go to last post
  29. F statistic is rounded to whole integer in RKWard

    I am currently using the RKWard frontend for R as I am a novice and have only previously used SPSS. I am using the rk.ANOVA plugin to perform a...

    Started by mdshaver‎, 11-29-2014 05:40 PM
    • Replies: 9
    • Views: 320
    11-30-2014, 10:30 AM Go to last post
  30. Importing data from excel

    Hello, I have imported data from excel with:"read.xls" command, but I can not use this table, because the columns are not as vectors. For...

    Started by zvio.ab‎, 11-29-2014 10:23 AM
    • Replies: 2
    • Views: 251
    11-29-2014, 10:42 AM Go to last post
  31. Get the overall p value of a categorical variabel in regression

    I am doing multiple univariate cox regressions to select significant predictors for a multivariate analysis in r. I have categorical ( dichotoom and...

    Started by noob‎, 11-24-2014 07:55 AM
    • Replies: 3
    • Views: 384
    11-28-2014, 12:27 PM Go to last post
  32. Logical operator question

    I have two vectors and I want to see if either vector satisfy the following condition: 2^n = n^2 How would I write the code to reference...

    Started by greg6363‎, 11-26-2014 10:14 PM
    • Replies: 4
    • Views: 275
    11-27-2014, 11:27 PM Go to last post
  33. multiply each row of one matrix with equally indexed row of another

    Given two matrices A and B i would like to crossproduct row(i) of A with row(i) of B for each i=1,2,3 - could use a loop - but have big matrices and...

    Started by JesperHP‎, 11-25-2014 05:44 PM
    • Replies: 2
    • Views: 242
    11-25-2014, 07:30 PM Go to last post
  34. Copying values via multiple conditions in data.frame

    Dear all, once again i ran into a problem of generating a new column in a data, frame. My plan is to find the maximum time value for rows in a...

    Started by tester1234‎, 11-21-2014 04:53 AM
    • Replies: 8
    • Views: 478
    11-24-2014, 11:45 PM Go to last post
  35. For Loop questions A) Tidying up and B) Speeding up

    Dear all, I have two questions regarding running for loop 1) How to tidy up the output 2) Speeding up the time taken to execute ...

    Started by ledzep‎, 11-24-2014 04:26 PM
    • Replies: 5
    • Views: 252
    11-24-2014, 06:38 PM Go to last post
  36. [R t.test] Is this test suitable for my data - Gallup Q12

    There's a standard survey for assessing the engagement level of staff in an organisation called the Gallup Q12 test. There are twelve questions and...

    Started by Richo‎, 11-23-2014 11:24 PM
    gallup, q12, t.test
    • Replies: 0
    • Views: 277
    11-23-2014, 11:24 PM Go to last post
  37. Newbie question, datasets missing label values

    Hi everybody guys, I hope you could help this rookie! It shouldn't take you a long time, I hope it's just me... Well, this is a little...

    Started by edosan‎, 11-22-2014 09:43 AM
    • Replies: 0
    • Views: 306
    11-22-2014, 09:43 AM Go to last post
  38. Beginner problem - "while" loop

    Hi guys! I just started using R, and have a small problem. I'm supposed to find the smallest n for which factorial (n) < n^100 using "while" loop....

    Started by Ozzy‎, 11-20-2014 01:37 PM
    • Replies: 5
    • Views: 401
    11-21-2014, 06:23 PM Go to last post
  39. Post How to predict the next value in R

    Total working days = 310 Can any one Please help me getting this report in graph with respect to the number of days worked and predict the...

    Started by Rrav‎, 11-20-2014 05:48 AM
    • Replies: 2
    • Views: 378
    11-20-2014, 03:21 PM Go to last post
  40. Question Help please with a tricky problem: compare one element to a row in a table

    Hi Please help I am stuck with a really tricky problem: Hi I have a really tricky problem. I tried several approaches and so far I got lost. ...

    Started by Lill‎, 11-19-2014 05:41 PM
    column, compare
    • Replies: 2
    • Views: 312
    11-19-2014, 07:28 PM Go to last post
  41. Question CSV-file with random 8-digit integers

    Hi. I'm looking for some help I simply can't get my head (or Google) around. I'm trying to create a CSV-file with 250 entries, all with a...

    Started by Lukan27‎, 11-16-2014 01:39 PM
    r random integer csv list
    • Replies: 3
    • Views: 446
    11-17-2014, 06:35 AM Go to last post
  42. lattice dotplot - hot to show only "useful" label on y-axis

    Dear All, I'm facing a boring issue using lattice dotplot, concerning the y-labelling. Taking into account the standard mtcars dataset, I'd...

    Started by Thaunes‎, 11-17-2014 05:28 AM
    lattice dotplot, r charts, r dotplot
    • Replies: 0
    • Views: 322
    11-17-2014, 05:28 AM Go to last post
  43. Smile error in the function can't figure out

    The question is writing a function int2v(n) such that integer n converts to numeric vector. E.G. int2v(2014), result: 2 0 1 4 int2v<-function(n){...

    Started by ericanita‎, 11-15-2014 01:23 PM
    • Replies: 2
    • Views: 420
    11-15-2014, 09:04 PM Go to last post
  44. Tutor needed for R programming help PAID tutor opportunity

    Hi my name is Sam. I am looking for a statistics tutor who is familiar with the R programming language. I have some questions that I need help...

    Started by statsman101‎, 11-13-2014 12:00 AM
    paid, r programming help, statistics course, trap, tutor, tutor needed
    • Replies: 7
    • Views: 540
    11-15-2014, 07:25 PM Go to last post
  45. use of bootstrap

    I am new member and this is my first time to use this talk stats. hence i don't know how to use properly. I my question is how can I create...

    Started by mikugreat‎, 11-14-2014 05:01 PM
    • Replies: 2
    • Views: 376
    11-15-2014, 07:13 PM Go to last post
  46. dataframe: proportion of the occurrence of a given ordering

    Hello! Suppose I have a dataframe as the one below: Geology Biochemistry Chemistry Zoology Physics Engineering 1 6 1 2 ...

    Started by gianmarco‎, 11-14-2014 01:34 AM
    frequency table
    • Replies: 6
    • Views: 359
    11-14-2014, 03:18 PM Go to last post
  47. Trying to replicate SAS Proc Logistic Code in SPSS or R

    I am an inexperienced user on R and mostly use SPSS for any statistical analysis. Recently I have been working at trying to replicate work done using...

    Started by kyleham90‎, 11-14-2014 06:57 AM
    logistic regression, proc logistic, r statistics, sas, spss
    • Replies: 0
    • Views: 283
    11-14-2014, 06:57 AM Go to last post
  48. subset data

    why can't I subset data that have values from -9998 to 1000. I want to subset the data with only values greater than 0. I used the following code: ...

    Started by rskgautam‎, 11-12-2014 12:36 PM
    factor, subset
    • Replies: 1
    • Views: 381
    11-14-2014, 12:11 AM Go to last post
  49. Anyone know about changing text colour in Phlyograms in R?

    Hi, I am a very new user of R and have only been using the phytools capability to create phylograms. I have now created the one I want but was...

    Started by greeneyesylf‎, 11-13-2014 12:18 PM
    • Replies: 0
    • Views: 204
    11-13-2014, 12:18 PM Go to last post
  50. How do I convert a numeric vector into binary numbers?

    Hello, I converted a factor into a numeric vector i.e. from "Male" and "Female" to "1" and "2" with the R code, "as.numeric(data$Gender)"....

    Started by Sociologist‎, 11-12-2014 01:20 AM
    linear transformation, r numeric vector, the second sex
    • Replies: 2
    • Views: 296
    11-12-2014, 08:49 AM Go to last post
  51. Holt Winters predict results differ from fitted data?

    I am having a huge difference between my fitted data with HoltWinters and the predict data. I can understand there being a huge difference after...

    Started by alphacentauriAB‎, 11-11-2014 10:55 PM
    r holt winters
    • Replies: 0
    • Views: 286
    11-11-2014, 10:55 PM Go to last post
  52. Another Simple Loop Question

    Sorry for yet another simple loop question. Say I have two vectors: One is "type", with a length of 4, and the other is an id, with length of...

    Started by MJWeinstein‎, 11-11-2014 01:12 PM
    • Replies: 2
    • Views: 315
    11-11-2014, 04:58 PM Go to last post
  53. Running multiple chi-square analyses simultaneously

    Greetings everyone, This is my first post in this forum. My name is Robert and I work for a statistical consulting firm where we mostly utilize...

    Started by Fliegster‎, 11-11-2014 10:10 AM
    • Replies: 0
    • Views: 208
    11-11-2014, 10:10 AM Go to last post
  54. an error message in R

    Hello, again, I am estimating a logit model. After I estimate the mode, I would like to create ROC curve and find out the optimal cutoff point:...

    Started by t.wang21@yahoo.com.au‎, 11-02-2014 09:02 PM
    • Replies: 3
    • Views: 604
    11-10-2014, 08:28 PM Go to last post
  55. R did not display results for marginal effects

    Hello, everyone, I am estimating a logit model. I tried to find out marginal effects using the following commands: require(foreign)...

    Started by t.wang21@yahoo.com.au‎, 11-02-2014 07:27 PM
    • Replies: 2
    • Views: 508
    11-10-2014, 08:24 PM Go to last post
  56. Biglm predict Error message "Error in x %*% coef(object) : non-conformable arguments"

    Dear all, i am using biglm-packages for big data to do linear Regressions and log-Regressions for probability. In both cases i am able to run...

    Started by tester1234‎, 11-03-2014 11:48 AM
    level code
    • Replies: 5
    • Views: 748
    11-09-2014, 05:50 AM Go to last post
  57. Graphical Analysis of Dason's Qualitative Analysis of Lil' Jon's Turn Down (for what)

    First let me say if you have not yet read Dason's analysis of Lil’ Jon’s magnum opus “Turn Down (For What)" do yourself a favor and read it. I...

    Started by trinker‎, 11-08-2014 09:55 PM
    • Replies: 0
    • Views: 282
    11-08-2014, 09:55 PM Go to last post
  58. Big rounding error in R or miscoding? Pdf of a quadratic of function of N(0,1)

    Dear all, I am trying to plot the pdf of a random variable y defined by : y=c+b*x+a*x^2 The pdf is a non-central chi-squared distribution. For...

    Started by Gravier1Billion‎, 11-07-2014 07:16 AM
    • Replies: 2
    • Views: 355
    11-07-2014, 01:35 PM Go to last post
  59. ADF tests

    Hello, There are many ADF.tests functions under R software. I don't know which one to choose knowing that the results differ from one test to...

    Started by Marwa‎, 11-06-2014 05:44 AM
    • Replies: 0
    • Views: 320
    11-06-2014, 05:44 AM Go to last post
  60. Plotting many time series on same graph (50+)

    Hello, Thank you for taking the time to read my question. I have a LOT of time series data that I would like to plot all on the same graph. ...

    Started by kmj‎, 11-05-2014 07:08 PM
    ggplot2, graph, plot, time series
    • Replies: 1
    • Views: 338
    11-05-2014, 08:11 PM Go to last post

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