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Forum: R

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

  1. 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
    27 Pages
    1 2 3 ... 27
    • Replies: 391
    • Views: 271,290
    11-05-2017, 08:22 PM Go to last post
  2. 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 07:20 PM
    • Replies: 0
    • Views: 26,224
    10-17-2012, 07:20 PM Go to last post
  3. Sticky Thread Sticky: What R packages are you aching to see?

    Are there any R packages that don't yet exist that you wish existed? What kinds of things do you wish were easier to do in R? What things do you...

    Started by Dason‎, 11-19-2015 01:38 AM
    • Replies: 2
    • Views: 13,555
    07-20-2017, 10:43 AM Go to last post
  4. 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 09:22 AM
    7 Pages
    1 2 3 ... 7
    information
    • Replies: 100
    • Views: 124,731
    04-14-2016, 01:02 PM Go to last post
  5. 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 05:08 AM
    9 Pages
    1 2 3 ... 9
    • Replies: 120
    • Views: 117,329
    12-13-2016, 05:47 PM Go to last post
  6. 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 03:42 PM
    20 Pages
    1 2 3 ... 20
    • Replies: 286
    • Views: 256,953
    09-13-2016, 03:35 PM Go to last post
  7. 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 09:41 AM
    8 Pages
    1 2 3 ... 8
    news
    • Replies: 115
    • Views: 112,321
    09-29-2017, 08:14 PM Go to last post
  1. store objects on disk, not in memory?

    Is there a way to create an R object that's stored on the disk, not in memory? I don't mean saving things and reloading them for persistence, I want...

    Started by -AP-‎, 11-07-2010 10:22 AM
    • Replies: 0
    • Views: 5,788
    11-07-2010, 10:22 AM Go to last post
  2. Question Choroplethr - Zooming in within a region?

    Hello all, I'm trying to create a choropleth plot to show iguana population data on a map of the Galapagos. I have installed choroplethr, maps,...

    Started by 10jessica‎, 03-04-2016 11:30 AM
    choropleth, choroplethr, plot
    • Replies: 0
    • Views: 1,401
    03-04-2016, 11:30 AM Go to last post
  3. about hclust()

    Can any body tell me how the hclust() method in stats package will work? Or can u give me some link for documentation with sample input and output....

    Started by 168768‎, 05-21-2009 02:50 AM
    • Replies: 1
    • Views: 6,304
    05-21-2009, 05:11 PM Go to last post
  4. Help

    Here is the question below: Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05...

    Started by 1NAMILL‎, 12-10-2005 05:54 PM
    • Replies: 3
    • Views: 7,268
    12-10-2005, 09:09 PM Go to last post
  5. Question multiple comparison problem post Kruskal-wallis

    Hello, I am new to R and am terrible at statistics, so hope someone can help me. I am trying to run multiple comparisons after a significant diff...

    Started by 2+2‎, 01-12-2014 10:04 PM
    • Replies: 3
    • Views: 2,811
    01-14-2014, 01:43 AM Go to last post
  6. Rolling parameter estimation (NIG distribution).

    I'd really appreciate someone pointing me in the right direction with this. I am trying to write a simple function in R which will estimate the...

    Started by 294006‎, 10-26-2010 07:13 PM
    • Replies: 0
    • Views: 3,788
    10-26-2010, 07:13 PM Go to last post
  7. [SOLVED] REGW Post Hoc in R

    Hi Everyone, I've looked and am surprised to be unable to find a way already created to compute the REGW post hoc anlaysis in R. Does anyone...

    Started by 3.14159‎, 04-20-2014 11:24 PM
    post hoc, regw
    • Replies: 4
    • Views: 3,586
    05-03-2014, 07:19 PM Go to last post
  8. Generating peer nomination dataset in R

    Hi all, I have been trying to generate a dataset on peer nominations in R. Often in research participants are asked to nominate others in the peer...

    Started by 3353206‎, 01-11-2016 08:10 AM
    function, generate data, probability, r code
    • Replies: 1
    • Views: 1,426
    01-11-2016, 08:43 AM Go to last post
  9. Vector problem

    I'm a R novice - just getting started and I'm stuck on something basic. Here is my program: x = 1:10 z = NULL for(j in seq(along=x)) { ...

    Started by 48K‎, 08-13-2013 07:29 AM
    • Replies: 9
    • Views: 1,581
    08-13-2013, 12:32 PM Go to last post
  10. Loop

    Hello all, :wave: I'm new here and new to R, but I have to admit I'm learning rather fast. Right now I need to write a loop, and I don't seem to...

    Started by @ngel‎, 06-15-2012 04:38 PM
    • Replies: 6
    • Views: 1,773
    06-15-2012, 08:02 PM Go to last post
  11. unrestricted cumulative probit model with vglm()---extend to a multivariate setting?

    Hi, all. I'm trying to model the transition of multiple, ordinal response variables on a continuous predictor (age). In this specific case, I'm...

    Started by @nthRo‎, 03-27-2012 02:57 PM
    • Replies: 0
    • Views: 1,755
    03-27-2012, 02:57 PM Go to last post
  12. log-rank (or other) test for difference between survival curves

    Hi, all. I have co-opted some R code that estimates parameters for a Gompertz-Makeham mortality model. The data to which the model is fit is...

    Started by @nthRo‎, 04-16-2012 03:38 PM
    gompertz, significant difference, survival analysis
    • Replies: 0
    • Views: 1,596
    04-16-2012, 03:38 PM Go to last post
  13. looping a procedure that utilizes an integration of a function

    Hi, all. I've written a function that returns the survival function for a Gompertz mortality model. I've specified the two model parameters. ...

    Started by @nthRo‎, 04-22-2012 04:18 PM
    integration, loops, vector
    • Replies: 2
    • Views: 1,239
    04-22-2012, 05:03 PM Go to last post
  14. A question about ARMAtoMA

    Hi everyone: I notice that in R, we have the function "ARMAtoMA", which can convert ARMA process to infinite MA process. However I wonder if there...

    Started by a little boy‎, 05-24-2009 09:18 AM
    • Replies: 2
    • Views: 8,723
    10-12-2009, 12:20 AM Go to last post
  15. Ergm

    Hi, I have the following question: Does anybody know how are the p-values in the function ergm computed? Do you know a paper where I can read it?

    Started by A.C‎, 08-14-2014 12:52 PM
    • Replies: 2
    • Views: 2,203
    08-14-2014, 04:41 PM Go to last post
  16. how to manipulate (best package) NoSQL data format in R

    Hi, I'm trying to manage data in a NoSQL format. Example: ID Date Rule 1 2016-02-03 A:20;B:30 2 2016-02-01 A:20 3 ...

    Started by a1492dc‎, 02-11-2016 08:53 PM
    dataframe, import, nosql
    • Replies: 0
    • Views: 1,697
    02-11-2016, 08:53 PM Go to last post
  17. Naive Bayes

    Hi there, I have four columns city, col1,col2,col3 with 20 rows of data from file practicedata. I created a 5 rows of test set and 15 rows of...

    Started by a234u‎, 11-08-2015 07:07 PM
    • Replies: 3
    • Views: 1,474
    11-09-2015, 08:08 PM Go to last post
  18. R reference manual for beginners

    Hi everyone! I have been using SPSS but have heard that R has superior graphic capabilities and so I have downloaded it but I am in desperate need...

    Started by a7dk‎, 02-16-2008 07:21 PM
    • Replies: 3
    • Views: 7,164
    05-20-2008, 10:13 AM Go to last post
  19. Question Repeated measures ANOVA?

    Post to come...

    Started by Aaron&Benji‎, 02-28-2014 02:04 AM
    anova
    • Replies: 1
    • Views: 2,636
    02-28-2014, 03:14 AM Go to last post
  20. Repeated measures ANOVA

    I have some data on 100 women who gave a rating of laziness on a scale of 1 (not lazy) to 5 (very lazy) to each of three people: themselves (W),...

    Started by Aaron&Benji‎, 03-03-2014 10:55 PM
    • Replies: 0
    • Views: 2,858
    03-03-2014, 10:55 PM Go to last post
  21. Lightbulb Statistical analysis and playing around with incidence rates

    Dear TalkStats Members, I am a bloody noob to R (used SPSS till now) and decided to learn R now. My first quest would be following: I have...

    Started by AAWWR-Mike‎, 10-21-2016 03:57 AM
    disease, incidence rate, linear regression, predictive analysis, projection
    • Replies: 0
    • Views: 2,314
    10-21-2016, 03:57 AM Go to last post
  22. Clustering time series

    Hi, I have 1000 monthly time series (just a year) and I want to cluster them. for instance (x): jan 2010 feb 2010 mar 2010 ...

    Started by abanero‎, 08-26-2010 02:38 AM
    • Replies: 0
    • Views: 2,921
    08-26-2010, 02:38 AM Go to last post
  23. Outreg command for R?

    Is there a similar to STATA outreg command for R that could create nice tables and report significance level just like stata does with that command?

    Started by abc‎, 12-22-2013 11:50 AM
    • Replies: 2
    • Views: 2,989
    12-22-2013, 03:11 PM Go to last post
  24. Question power of a test

    how we can calculate the power of a test statistics when we have 100 bootstrap values of a test statistics with 5% level of significance.

    Started by ABD‎, 01-02-2012 02:31 AM
    • Replies: 0
    • Views: 1,735
    01-02-2012, 02:31 AM Go to last post
  25. Packages Carseat Dataset!

    Hi, Ok i am very new to R and I am not a computer wiz. I just installed R on my laptop and I need to work on the carseat dataset. I tried to...

    Started by abeer85‎, 12-25-2014 06:58 PM
    pakages
    • Replies: 6
    • Views: 8,024
    12-26-2014, 04:09 PM Go to last post
  26. partitioning variance in the polr command

    I am using ordinal regression (MASS package, polr command) to analyze ranked coloration data (% piebaldism) of an iguana species based on sex,...

    Started by acampbell‎, 06-16-2015 07:36 PM
    mass package, ordinal regression, polr
    • Replies: 0
    • Views: 1,540
    06-16-2015, 07:36 PM Go to last post
  27. iterative regressions, adding a new line of data each time

    Hi, I am pretty new to R. I'm trying run a regression repeatedly, adding a new data point each time, and then storing the predicted Y values. For...

    Started by ace834‎, 01-31-2010 10:27 AM
    • Replies: 2
    • Views: 2,704
    02-02-2010, 10:15 PM Go to last post
  28. Moran I Test for Spatal Panel Data

    Hi, I am currently trying to analyze the spillover effect on regional economic factors. But first, I need to identify the spatial dependency on...

    Started by Addin‎, 04-10-2017 10:55 PM
    • Replies: 0
    • Views: 1,082
    04-10-2017, 10:55 PM Go to last post
  29. Arrow Anybody knows how to specify a latent class model using FLXMRLMER in R?

    Hi Everyone, I'm trying to use the package 'flexmix' in R to specify latent class models. I want to specify a model that has random effects. I...

    Started by Adiosamigos‎, 12-31-2014 05:52 PM
    flexmix, flxmrlmer, latent class modeling, random effects
    • Replies: 2
    • Views: 1,427
    01-07-2015, 09:33 AM Go to last post
  30. Problem in installation of quantreg in R ubuntu 16.04

    > install.packages("quantreg") Installing package into ‘/home/aditya/R/x86_64-pc-linux-gnu-library/3.3’ (as ‘lib’ is unspecified) trying URL...

    Started by Aditya2956‎, 02-12-2017 10:41 PM
    bioconductor, libgfortran, quantreg, ubuntu
    • Replies: 0
    • Views: 1,737
    02-12-2017, 10:41 PM Go to last post
  31. Best way to impute NAs before PCA in R

    Hey, I have a dataset with approximately 4000 rows and 150 columns. I want to predict the values of a single column (= target). The data is on...

    Started by admiratio‎, 10-22-2014 03:58 AM
    missing values, pca, principal components
    • Replies: 9
    • Views: 6,035
    10-28-2014, 02:25 AM Go to last post
  32. Trend analysis/linear contrasts with repeated-measures

    Hi, From what I understand (not that much unfortunately), if my data follow a repeated-measures scheme, I need to take it into account when...

    Started by Adoudoux‎, 04-12-2011 08:48 PM
    • Replies: 0
    • Views: 4,404
    04-12-2011, 08:48 PM Go to last post
  33. Going crazy over R problem:=)

    Hi all! I'm new here! This is my first post, starting out with needing help, awesome right? I have a problem that I've looked at for days,...

    Started by AE35‎, 10-20-2012 07:23 PM
    • Replies: 10
    • Views: 1,765
    10-21-2012, 05:35 PM Go to last post
  34. r confidence interval

    hi, i am new to both r and stats. i have a data set with x = ht of group 1 and y = ht of group 2. for subpopulations with x = *cm and x = **cm i am...

    Started by aeb‎, 09-30-2010 12:44 PM
    • Replies: 3
    • Views: 5,564
    12-11-2010, 03:18 AM Go to last post
  35. Bullet Graph - how to create a graph which compares multiple samples without ggplot2?

    I would like to create a bullet graph in R, as per Drennan, based on the graph attached. I've had a look at the thread...

    Started by AEve‎, 01-22-2013 12:53 AM
    • Replies: 5
    • Views: 4,021
    01-22-2013, 03:41 PM Go to last post
  36. R Boxplot subset - remove vacant columns

    Hi, I'm trying to produce a box plot of a subset, which only displays the x-axis labels that form part of the subset. As you can see in the...

    Started by AEve‎, 01-10-2013 06:19 AM
    • Replies: 2
    • Views: 17,269
    01-10-2013, 10:43 PM Go to last post
  37. R dataframe help

    Hello everyone, I'm trying to extract certain sets of data from a dataframe on some fishing data (imaginatively named "fish"). Here's how the...

    Started by AFH‎, 10-16-2012 06:02 PM
    dataframe
    • Replies: 4
    • Views: 1,923
    10-17-2012, 11:47 AM Go to last post
  38. Need help with R

    Hello everyone, I'm a newbie with R, so please bear with me ^^. I've just programmed a simple board game on R to extract the number of times the...

    Started by afiqdeist‎, 04-09-2011 09:36 PM
    • Replies: 7
    • Views: 3,495
    04-11-2011, 08:45 PM Go to last post
  39. Make regression for high and low income countries

    Hi! I am currently making a project in econometrics, and i want to make separate regression for low and high income countries. I have GNI per capita...

    Started by AgithaBella‎, 12-06-2015 07:48 AM
    • Replies: 4
    • Views: 1,685
    12-07-2015, 05:36 AM Go to last post
  40. OLS assumptions in Rstudio

    Hey! I am making an econometrics project and there is one of the assumptions i cant figure out how to calculate in R: Assumption MLR.4 (Zero...

    Started by AgithaBella‎, 12-07-2015 05:41 AM
    • Replies: 0
    • Views: 1,727
    12-07-2015, 05:41 AM Go to last post
  41. Selecting data frames

    Hi all, I have a questions. I have a data frame like this obs 1 2 2 2 2 obs 2 3 3 4 5 obs 3 1 4 9 8 indict 1 0 1 0 A 4x3...

    Started by agp‎, 02-06-2013 11:00 AM
    • Replies: 1
    • Views: 1,042
    02-06-2013, 12:33 PM Go to last post
  42. Everything in R studio suddenly because in italics

    Not really sure what happened, but when I turned on R studio today, everything were in italics. I can't change anything under options because there's...

    Started by agp‎, 04-06-2013 01:39 AM
    • Replies: 1
    • Views: 1,315
    04-09-2013, 08:35 AM Go to last post
  43. For Loop without numbers

    Ran into this little problem today... I have a data table, with about 20 columns, each is a different parameter. I want the descriptive stat...

    Started by agp‎, 01-15-2013 09:59 PM
    • Replies: 3
    • Views: 1,608
    01-16-2013, 08:17 AM Go to last post
  44. Best way to visualize graph with 3 predictors?

    I have some data with three predictors (one is ordinal/categorical with three categories that may be able to combined into two, one is continuous,...

    Started by agp‎, 04-18-2013 09:43 AM
    • Replies: 1
    • Views: 2,514
    04-18-2013, 08:16 PM Go to last post
  45. Counting True Positives

    I'm not sure how to count true positives in R and was wondering if you guys can help me out: dataset$y is the actual condition (1 for true, 0 for...

    Started by agp‎, 01-17-2013 11:30 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,489
    01-18-2013, 02:52 AM Go to last post
  46. 3D Circular contour plot

    Hey guys, I want to make a 3D circular/diamond contour plot using the following data, but wanted to know if it was possible... X and Y are...

    Started by agp‎, 02-20-2013 10:04 PM
    • Replies: 2
    • Views: 3,622
    02-21-2013, 01:16 AM Go to last post
  47. binom.test question

    Hey guys, I'm trying to figure out if I'm using binom.test correctly. Below is the issue at hand: I have nx2 df, column 1 contains actual values...

    Started by agp‎, 03-17-2013 05:08 PM
    • Replies: 3
    • Views: 3,213
    03-17-2013, 08:34 PM Go to last post
  48. Removing duplicate column names

    I have a dataset with different variables/column names. How do I remove all but one of the columns by duplicate column names?

    Started by agp‎, 01-31-2013 11:44 PM
    • Replies: 3
    • Views: 11,331
    02-01-2013, 05:14 PM Go to last post
  49. Wilcoxon tests

    I'm running some Wilcoxon signed rank tests in R and have some questions regarding what "exact" and "continuity" means. I have a dataset of paired...

    Started by agp‎, 02-15-2013 12:24 AM
    • Replies: 0
    • Views: 1,830
    02-15-2013, 12:24 AM Go to last post
  50. 2-Stage Linear Mixed Model in nlme

    I'm trying to fit a 2 stage lmm in nlme using lme(). I have predictors A, B, C, and D, and outcome Y. I want to fit a model in which Stage 1: A~B...

    Started by agp‎, 04-18-2013 06:24 PM
    • Replies: 0
    • Views: 1,487
    04-18-2013, 06:24 PM Go to last post
  51. ggplot and regression curves

    When fitting a scatterplot in ggplot, I know that there is an option for adding a simple linear regression curve or a loess curve. However, is there...

    Started by agp‎, 03-25-2013 09:11 PM
    • Replies: 1
    • Views: 3,875
    03-30-2013, 05:40 AM Go to last post
  52. Replacing values

    A seemingly simple issue, but I can't figure it out... I have a n by m data frame (n and m >2) and I want to change all the values that are...

    Started by agp‎, 03-23-2013 09:56 PM
    • Replies: 2
    • Views: 2,351
    03-23-2013, 10:46 PM Go to last post
  53. Local average smoother

    Does anyone know a package/have the code that will calculate the local average smoother and allows the input of arguments that defines 1. the value...

    Started by agp‎, 04-15-2013 08:04 PM
    • Replies: 2
    • Views: 1,680
    04-16-2013, 12:40 AM Go to last post
  54. R question....

    Not sure what to title this but... Here's my data frame, there are 4 subjects, 5 measurements per subject. 1 8 6 4 2 7 4 6 4 2 6 3 8 5 2 1 2...

    Started by agp‎, 02-21-2013 06:03 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,226
    02-25-2013, 10:09 PM Go to last post
  55. Mean separation for different factor levels

    I am dealing with a split plot experiment set up in blocks, and would like to do a mean separation for levels of subplot effects for each level of...

    Started by agsalomon‎, 07-18-2013 02:02 PM
    • Replies: 0
    • Views: 2,117
    07-18-2013, 02:02 PM Go to last post
  56. Repeated measures anova with non-survival over time

    I have a data set including 8 time periods, with a continuous dependant variable, 4 main-plot treatments, 4 sub-plot treatments. The number of...

    Started by agsalomon‎, 11-20-2013 04:17 AM
    • Replies: 0
    • Views: 2,135
    11-20-2013, 04:17 AM Go to last post
  57. Very elementary question

    Hello all, I'm very new to R. I'm working on a small research project with my hospital that is only using basic descriptive statistics. I decided to...

    Started by ahimsel‎, 02-20-2015 08:00 AM
    • Replies: 0
    • Views: 1,049
    02-20-2015, 08:00 AM Go to last post
  58. Problem in using R to compute statistics

    Hi, I have several problems using R especially to calculate numbers. Below is my input data:- Test1 Test2 Test3 Test4 s1 1000 ...

    Started by ahjiefreak‎, 05-18-2008 08:24 PM
    • Replies: 5
    • Views: 4,517
    05-23-2008, 12:38 PM Go to last post
  59. R unable to access internet to install packages

    I am having some trouble trying to install a number of packages in R on my work computer. An example of the code I am using is as follows:...

    Started by ajc2810‎, 05-08-2013 07:34 PM
    installation, package, r-lang
    • Replies: 2
    • Views: 2,525
    05-08-2013, 11:05 PM Go to last post
  60. contrast codes for type II unbalanced ANOVA

    I am trying to run an unbalanced type II ANOVA from the car package in R but have no idea what contrast code to use for my data. I have two...

    Started by akandes‎, 03-21-2013 08:44 PM
    • Replies: 0
    • Views: 1,664
    03-21-2013, 08:44 PM Go to last post

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