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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: 269,856
    11-05-2017, 08:22 PM 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 09:41 AM
    8 Pages
    1 2 3 ... 8
    • Replies: 115
    • Views: 111,670
    09-29-2017, 08:14 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: 13,473
    07-20-2017, 10:43 AM Go to last post
  4. 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: 116,857
    12-13-2016, 05:47 PM Go to last post
  5. 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: 255,643
    09-13-2016, 03:35 PM Go to last post
  6. 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
    • Replies: 100
    • Views: 124,213
    04-14-2016, 01:02 PM Go to last post
  7. 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: 26,133
    10-17-2012, 07:20 PM Go to last post
  1. 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: 1,719
    01-02-2012, 02:31 AM Go to last post
  2. [SOLVED] Help with gam package gam()

    I'm attempting to use the function gam() from r's gam package to make some predictions. The y variable is a factor of either 0, .5, or 1 with a mean...

    Started by roasthawg‎, 12-30-2011 01:11 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 5,906
    01-01-2012, 05:18 PM Go to last post
  3. Question on strptime with peeling out hours

    Dear R users, I am trying to peel out information on hours from a column which contains information on date and hours. An example # data...

    Started by ledzep‎, 12-31-2011 02:56 PM
    solved, [solved]
    • Replies: 9
    • Views: 3,838
    12-31-2011, 03:42 PM Go to last post
  4. [SOLVED] Output from rbenchmark's benchmark()

    How do I interpret the output from benchmark (from rbenchmark)? I don't have a programming background and quasi understand system.time. The help...

    Started by trinker‎, 12-31-2011 12:00 AM
    • Replies: 2
    • Views: 1,845
    12-31-2011, 01:18 AM Go to last post
  5. [SOLVED] Eliminate ddply (plyr) dependency

    I have a plyr addiction I'm trying kick. I'm getting better at using the apply family of functions including tapply. I'm just starting to use split...

    Started by trinker‎, 12-30-2011 10:58 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 4,373
    12-30-2011, 11:58 PM Go to last post
  6. Non OS dependent graphics device

    I'm including a call to the graphics device in a function. Currently I use windows() but want the function to be OS independent. Is there a...

    Started by trinker‎, 12-30-2011 10:25 PM
    • Replies: 2
    • Views: 2,337
    12-30-2011, 11:18 PM Go to last post
  7. [SOLVED] Split vector into groups based on a running sum condition.

    This one is a bit hard to explain so hopefully my reproducible example does the talking. I'm working with readability statistics and need to take...

    Started by trinker‎, 12-27-2011 11:14 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 53
    • Views: 10,068
    12-30-2011, 10:32 AM Go to last post
  8. error in boxTidwell (car package)

    I have checked the component + residual plots of a model and realize linearity has not been met. I then tried to use the boxTidwell function from...

    Started by trinker‎, 12-11-2011 03:59 PM
    • Replies: 2
    • Views: 4,160
    12-30-2011, 08:56 AM Go to last post
  9. How to share weights in linear/logistic regression?

    Is there a way in R to share factor weights in regression similar to weight sharing in neural networks which increases data efficiency when inputs...

    Started by rumpel789‎, 12-29-2011 07:05 PM
    • Replies: 0
    • Views: 1,346
    12-29-2011, 07:05 PM Go to last post
  10. About the nonlinear regression model.

    Hi. I've studied about nonlinear regression model, and fitted my data by R. In R, nls package is my case, so I've searched for nls package. But...

    Started by subspaces‎, 12-15-2011 05:19 AM
    • Replies: 2
    • Views: 2,102
    12-28-2011, 03:28 AM Go to last post
  11. Help with SVM!

    I'm trying to get an svm model going on a data set and I'm getting outlandish predictions. There's a footnote at the bottom of the svm package notes...

    Started by roasthawg‎, 12-28-2011 01:20 AM
    • Replies: 3
    • Views: 2,910
    12-28-2011, 01:46 AM Go to last post
  12. Merging Multiple Data Frames

    I've had an earlier thread that talked about this problem, and I used a series of merge statements to get the job done. While it works, I really...

    Started by bryangoodrich‎, 12-15-2011 03:33 PM
    • Replies: 12
    • Views: 23,184
    12-27-2011, 09:02 PM Go to last post
  13. filtering with a logical condition in a character variable

    Dear friends, I import from a database conditions of type "A == 3" (like a character variable, say 'cond') My problem is that I need to use...

    Started by ruski‎, 12-22-2011 07:55 AM
    • Replies: 6
    • Views: 5,294
    12-27-2011, 07:11 AM Go to last post
  14. Cut a list of words into equal groups

    I have what seems like a pretty easy task that I have solved but it seems pretty lame. I have a vector of words. Many of the readability statistics...

    Started by trinker‎, 12-27-2011 01:11 AM
    • Replies: 1
    • Views: 2,253
    12-27-2011, 02:30 AM Go to last post
  15. [SOLVED] Coding convention question

    I have encountered a problem with curly braces several times. I read in one of the coding conventions guide that an ending curly brace should be on...

    Started by trinker‎, 12-26-2011 09:30 AM
    • Replies: 4
    • Views: 1,642
    12-26-2011, 04:26 PM Go to last post
  16. [R project] IG distribution

    Hi all, i'm trying to find Inverse gaussian quantiles.. i tried using an R package called 'statmod' which has the commands i need, but when i gave...

    Started by RefUser‎, 12-25-2011 03:08 AM
    • Replies: 0
    • Views: 1,573
    12-25-2011, 03:08 AM Go to last post
  17. [SOLVED] Uneasy Data Import

    The title is obviously vague, but that's because I have no simple one-liner for how to describe this. I'm helping clean up my friend's data for her...

    Started by bryangoodrich‎, 12-23-2011 03:29 PM
    • Replies: 14
    • Views: 2,344
    12-24-2011, 12:21 PM Go to last post
  18. [SOLVED] Suppress Warningr in Function

    Earlier I had posted a thread asking about suppressing an error inside a function. As it was pointed out to me the function was R 2.14 dependent and...

    Started by trinker‎, 12-23-2011 10:07 PM
    • Replies: 0
    • Views: 1,691
    12-23-2011, 10:07 PM Go to last post
  19. Wrapper Functions (not a question)

    This is to extend a question asked in the chat box of what a wrapper function is. Basically it's a function that slightly alters another function to...

    Started by trinker‎, 12-23-2011 11:22 AM
    • Replies: 2
    • Views: 1,928
    12-23-2011, 12:21 PM Go to last post
  20. R embodies the christmass spirit of giving and asking nothing in return

    I however intend to make a small donation this year and thought I would share the link as it is reasonably well hidden on the official site.

    Started by TheEcologist‎, 12-22-2011 08:25 AM
    • Replies: 1
    • Views: 2,001
    12-22-2011, 02:12 PM Go to last post
  21. accessing bootstrap samples

    Hi All I was wondering how to actually see the boot data generated by bootstrapping (R=12) the data below - that is actaully view the resample...

    Started by troot‎, 12-20-2011 09:17 PM
    • Replies: 12
    • Views: 2,914
    12-21-2011, 07:01 PM Go to last post
  22. Use R to break a word into syllables

    I moved this portion of a thread from (HERE) as the original problem was solved. Posting a problem I'm wrestling with though it's likely outside...

    Started by trinker‎, 12-19-2011 01:36 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 8,695
    12-21-2011, 02:00 PM Go to last post
  23. Is sweave seriusly this difficult to get started with ?

    I am trying to get started with sweave but i am finding it annoyingly difficult, i gather that i should run a .Rnw file from R for example...

    Started by thedreamshaper‎, 12-17-2011 05:22 PM
    • Replies: 13
    • Views: 4,005
    12-21-2011, 10:16 AM Go to last post
  24. Primer on mixed ANOVA?

    I have data from a few experiments where I want to do mixed ANOVA with one or two each of within-subject and between-subject factors. I have sort of...

    Started by baixiwei‎, 12-20-2011 11:45 PM
    • Replies: 2
    • Views: 1,467
    12-21-2011, 12:19 AM Go to last post
  25. Logit Mixed effects plot / binomial plot

    Solved - my mistake.

    Started by drewmac‎, 12-20-2011 05:29 PM
    lmer mixed effects
    • Replies: 1
    • Views: 1,838
    12-20-2011, 06:36 PM Go to last post
  26. Question Transformation w NA data

    Hi I am trying to do transformation (Box-Cox) using R to my data to get the noromal distribution and because I have so many NA in my data ( no...

    Started by lili‎, 12-20-2011 03:09 PM
    • Replies: 2
    • Views: 1,548
    12-20-2011, 03:53 PM Go to last post
  27. split-plot design and lme

    Im working on a data set in order to evaluate the impact of drying on sediment microbial activities. The objective is to determine if the impact of...

    Started by Johnijohn‎, 12-20-2011 03:06 AM
    lme, split-plot
    • Replies: 0
    • Views: 2,665
    12-20-2011, 03:06 AM Go to last post
  28. Convincing IT to add R (I need a justification)

    I need to use R at work. But my IT department has a policy of not allowing open source code on our systems. Does anyone have links etc that would...

    Started by noetsi‎, 12-19-2011 03:07 PM
    • Replies: 6
    • Views: 2,613
    12-19-2011, 08:27 PM Go to last post
  29. Fixed-Point Iteration

    So I'm working on my old Numerical Analysis stuff from 2009 (to add to my website). The old code was horrible. I was such a n00b back then. In any...

    Started by bryangoodrich‎, 12-09-2011 05:56 AM
    • Replies: 3
    • Views: 4,148
    12-19-2011, 11:10 AM Go to last post
  30. [SOLVED] Using a website's tool's in R

    Alright I'm trying to develop this package for quantitative discourse analysis. Anyway I decide i need to do syllable counts (my ultimate goal) and...

    Started by trinker‎, 12-18-2011 10:20 PM
    • Replies: 6
    • Views: 2,582
    12-19-2011, 01:18 AM Go to last post
  31. [SOLVED] Error detection when using package "plyr"

    Problem: I'm running a custom function on subsets of a data.frame using the dlply function in Wickham's package "plyr." It threw an error related to...

    Started by jpkelley‎, 12-18-2011 06:41 PM
    dlply, plyr, subset
    • Replies: 2
    • Views: 1,913
    12-18-2011, 08:36 PM Go to last post
  32. Mlogit: How to handle situation where choice is 1 and variable has a missing value?

    Hi I am trying to estimate parameter values with mlogit. I attach a part of my data. My code is ...

    Started by Ipinho100‎, 12-18-2011 12:01 PM
    • Replies: 0
    • Views: 5,032
    12-18-2011, 12:01 PM Go to last post
  33. Web Scraping

    If you haven't heard the term before, it's basically the act of extracting data off the web, particularly in automated ways, often using some sort of...

    Started by bryangoodrich‎, 12-16-2011 02:01 PM
    • Replies: 9
    • Views: 3,426
    12-17-2011, 04:54 PM Go to last post
  34. [SOLVED] Eliminate plyr dependency from function code

    I have a functions I'm most likely going to publish as part of a package. Right now it depends on plyr. I'd like to avoid that yet get the same...

    Started by trinker‎, 12-06-2011 10:15 AM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 8,099
    12-17-2011, 02:04 PM Go to last post
  35. pairwise with Holm's correctiion after CHISQ

    Hello all, I have a thread going in the statistics section, but feel that this question would be better suited so that it could be available to...

    Started by Dragonwalker‎, 12-17-2011 11:02 AM
    chi pairwise r
    • Replies: 0
    • Views: 1,618
    12-17-2011, 11:02 AM Go to last post
  36. Regular Expression: Split jagged Field

    I'm splitting a field of county-state names. For example, a California county might be "Sacramento CA" (that's with five spaces in between)....

    Started by bryangoodrich‎, 12-16-2011 02:37 PM
    • Replies: 3
    • Views: 3,354
    12-16-2011, 05:02 PM Go to last post
  37. [SOLVED] Smart error handling in R

    He Guys, I was wondering if anybody knows of a simple way to catch an error, and return a certain predefined value? A IF ERROR THEN RETURN X ...

    Started by TheEcologist‎, 12-16-2011 11:01 AM
    • Replies: 5
    • Views: 6,167
    12-16-2011, 11:29 AM Go to last post
  38. Help with tsreg function output (Theil-Sen estimator for linear regression)

    Hi I've been looking into robust methods of linear regression and have been using the tsreg function which computes the Theil-Sen estimator. The...

    Started by RobH‎, 12-16-2011 11:01 AM
    linear regression, theil-sen, wilcox functions
    • Replies: 0
    • Views: 4,312
    12-16-2011, 11:01 AM Go to last post
  39. [SOLVED] Efficiency of an R code

    I have a string of numbers compliments of a velicoraptor hater kinda guy that looks like this: x 1 1.0 2 1.1 3 1.2 4 2.0 5 3.0 6 3.1 7 3.2

    Started by trinker‎, 12-14-2011 09:11 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 5,537
    12-15-2011, 08:56 PM Go to last post
  40. Prepare data for mlogit.data

    I'm new to this so please forgive me. I am preparing data to import and then run through mlogit.data for regression. No matter what I do I get:...

    Started by w424637‎, 12-14-2011 04:15 PM
    • Replies: 14
    • Views: 7,486
    12-15-2011, 05:30 PM Go to last post
  41. modification of the name axis of a R function

    Hi, I use the function fpot of packages evd. If I call the fit that I obtain "fit", I want to modify the name of the axis and the main title that...

    Started by plocq‎, 12-15-2011 04:30 AM
    • Replies: 1
    • Views: 2,558
    12-15-2011, 11:52 AM Go to last post
  42. Unhappy Speedin' up calculations or Death by Maximum Likelihood...

    never in my life did i think i'd be again on this situation but, anyways, here i go... ... so i am starting to run the pre-eliminary code of what...

    Started by spunky‎, 12-14-2011 01:19 PM
    • Replies: 6
    • Views: 2,988
    12-14-2011, 04:26 PM Go to last post
  43. [SOLVED] Digging up the parameter values from optim at the point it failed

    Hi Guys, Anybody know how to get the final parameter values from optim (under Nelder-Mead) before it failed? I tried using...

    Started by TheEcologist‎, 12-06-2011 10:11 AM
    • Replies: 9
    • Views: 1,870
    12-14-2011, 11:17 AM Go to last post
  44. Problem with ploting fitted values

    Hello everyone. I have such a problem... Perhaps someone could halp me... I think that it's not such a big deal but I cannot find the mistake. ...

    Started by mikunda‎, 12-13-2011 04:58 PM
    • Replies: 2
    • Views: 2,732
    12-14-2011, 01:58 AM Go to last post
  45. plotting confidence bands for linear regression

    Hello, I am trying to plot a regression line onto a simple scatterplot displaying the 95% Confidence bands. I have run the analysis and have...

    Started by bugman‎, 12-15-2008 01:01 AM
    • Replies: 8
    • Views: 37,262
    12-13-2011, 08:14 PM Go to last post
  46. Multiple y-axis in ggplot2

    I have read over the Net that there is something fundamentally flawed about showing two plots on one graph using two different axes (one scaled,...

    Started by bryangoodrich‎, 12-13-2011 04:33 PM
    • Replies: 4
    • Views: 15,786
    12-13-2011, 06:13 PM Go to last post
  47. for statement help

    Dear R users, I have a data which looks like this: test<-data.frame(gp=c(rep("A",4),rep("B",4)), val=c(1,2,3,4,5,6,7,8)) > test gp val 1 ...

    Started by ledzep‎, 12-13-2011 09:09 AM
    • Replies: 6
    • Views: 3,218
    12-13-2011, 05:30 PM Go to last post
  48. [SOLVED] Help with a function

    I need a fun project and have one: I've been wanting to make a "boxer" for R and/or latex code for a little while to neatly put a rectangular box...

    Started by trinker‎, 12-12-2011 11:51 PM
    • Replies: 11
    • Views: 2,635
    12-13-2011, 12:55 PM Go to last post
  49. [SOLVED] sourcing a function

    Hi, I try to create (for the first time) a function with R but I have some problem : when I call my function, R can't find it. For example :...

    Started by plocq‎, 12-13-2011 10:19 AM
    • Replies: 6
    • Views: 5,837
    12-13-2011, 12:20 PM Go to last post
  50. Fastest way to find the largest value in a vector

    Here's what I have. Is there a faster way? y <- c(1, 5, 6, 11, 15) y

    Started by trinker‎, 12-12-2011 10:50 PM
    • Replies: 2
    • Views: 1,991
    12-12-2011, 11:18 PM Go to last post
  51. R beginner with a general and a specific question

    Sorry if this is already answered somewhere - I did look - The general question. What is the best thing to read if you want to get started using R...

    Started by baixiwei‎, 12-11-2011 04:32 PM
    • Replies: 10
    • Views: 3,283
    12-12-2011, 07:55 PM Go to last post
  52. Move x axis label down ggplot [ANSWERED]

    Earlier I posted and then relatively quickly deleted a post asking how to move the location of an axis label. I am under the gun to get 2 papers...

    Started by trinker‎, 12-09-2011 11:54 PM
    • Replies: 0
    • Views: 5,722
    12-09-2011, 11:54 PM Go to last post
  53. Linear Fitting

    Kindly see attached for the data. I was asked to use the R to give what was asked in a, b, c, and d. Any help is greatly appreciated.

    Started by dEconomist‎, 12-09-2011 11:36 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 5,478
    12-09-2011, 08:45 PM Go to last post
  54. Question "Error in paste" when fitting a latent curve model using OpenMx

    Hi all, I am relatively new to R. I have been using it to estimate structural equation models using OpenMx. Now I am trying to fit a latent...

    Started by scisci‎, 12-09-2011 01:02 PM
    curve fitting, latent variable, openmx
    • Replies: 0
    • Views: 1,855
    12-09-2011, 01:02 PM Go to last post
  55. Y U NO WORK, Sweave

    Okay, I haven't toyed with Sweave in awhile, but today I was thinking how I could come in handy. I noticed that miktex has a portable version. Great,...

    Started by bryangoodrich‎, 12-08-2011 07:57 PM
    • Replies: 8
    • Views: 3,480
    12-09-2011, 12:38 PM Go to last post
  56. Plot two levels of a factor on the same graph

    Dear R users, I want to plot two levels of a factor on the same plot. Here's an example data test<-dput(structure(list(dayofvisit = c(0, 0,...

    Started by ledzep‎, 12-09-2011 11:39 AM
    • Replies: 4
    • Views: 1,998
    12-09-2011, 12:35 PM Go to last post
  57. profile likelihood

    Hi, I try to use the function profile() of the SpatialExtremes' package to obtain the profile likelihood of parameters for an extreme values fit...

    Started by plocq‎, 12-08-2011 02:43 PM
    • Replies: 1
    • Views: 1,480
    12-09-2011, 01:28 AM Go to last post
  58. odfWeave

    All this talk of sweave has me remembering something from the R in action Book called odfWeave that integrates with open office. I could see this as...

    Started by trinker‎, 12-08-2011 08:14 PM
    • Replies: 0
    • Views: 1,847
    12-08-2011, 08:14 PM Go to last post
  59. Sweave, hide the code

    Hey, I'm trying to use Sweave to make a report. I thought I could just use the command echoe=FALSE, but I still get my R code in the output. ...

    Started by MaxMan‎, 12-08-2011 05:37 PM
    • Replies: 7
    • Views: 12,822
    12-08-2011, 08:00 PM Go to last post
  60. MDS INDSCAL ANALYSIS, problem with 'non-numeric matrix extent'

    Hello I want to make MDS three way analysis of individual differences with smacof package. I get the error Error in matrix(1, n, n) :...

    Started by MarkoLimbek‎, 12-08-2011 05:16 AM
    • Replies: 0
    • Views: 6,119
    12-08-2011, 05:16 AM Go to last post

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