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Forum: R

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

  1. 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
    19 Pages
    1 2 3 ... 19
    • Replies: 274
    • Views: 63,655
    07-14-2015, 04:28 PM Go to last post
  2. 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 10:39 AM
    24 Pages
    1 2 3 ... 24
    • Replies: 350
    • Views: 63,846
    07-01-2015, 01:03 PM Go to last post
  3. 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
    6 Pages
    1 2 3 ... 6
    • Replies: 76
    • Views: 27,247
    06-28-2015, 12:32 PM Go to last post
  4. 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: 1
    • Views: 8,360
    06-04-2015, 08:01 AM Go to last post
  5. 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: 107
    • Views: 28,135
    11-22-2014, 08:28 AM 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
    information
    • Replies: 99
    • Views: 43,186
    05-22-2014, 02:07 AM Go to last post
  1. Problem with fanny function

    Hi. I have a problem with this code: “require(cluster) data1 <-...

    Started by alb‎, Today 01:15 PM
    • Replies: 0
    • Views: 44
    Today, 01:15 PM Go to last post
  2. R vs Sas vs Splus vs Matlab vs others

    Can someone explain to me the pros and cons of all these software packages? Which one would you use if you can start all over again? Thanks.

    Started by shrek‎, 05-16-2008 02:40 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 92,564
    Today, 01:10 PM Go to last post
  3. Apply function in R

    Hi, I want to apply a user defined function over a matrix object. I don't have desired results my input is a 4x4 matrix and I want to get as output...

    Started by juanvg1972‎, Today 11:48 AM
    r apply
    • Replies: 0
    • Views: 42
    Today, 11:48 AM Go to last post
  4. R books

    Hello everyone, I began to study hard on R, I took two books, only would like a view of the most experienced on which one to get, or even other...

    Started by askazy‎, 01-08-2015 05:51 AM
    • Replies: 8
    • Views: 548
    08-29-2015, 04:31 PM Go to last post
  5. but are character vectors really immutable in R?

    but are character vectors really immutable in R or not? if yes how i can make it immutable? for ex, I want: x <- charvector y <- x x <- modified...

    Started by Madp‎, 08-28-2015 08:45 AM
    • Replies: 8
    • Views: 174
    08-28-2015, 11:54 AM Go to last post
  6. Find the mean of columns and adding these values back to a data frame

    Hello Talk Stats forum: I am new at R hence this basic question. I have imported a simple excel csv file using the read.csv method and have...

    Started by R2015‎, 08-28-2015 09:23 AM
    • Replies: 5
    • Views: 114
    08-28-2015, 10:21 AM Go to last post
  7. R Markdown document-How do you display/format a References/Bibliography section?

    Hello, I am trying to write a scientific paper using R Markdown, but am unsure about the best way to include the references section. Since I have...

    Started by helloR123‎, 08-27-2015 01:56 PM
    bibliography, bibtex, r language, r markdown, references
    • Replies: 0
    • Views: 75
    08-27-2015, 01:56 PM Go to last post
  8. Looking for contributors to join our team

    Hi everyone, I hope you find this post useful. Recently we developed a website DataScience+ to share some R tutorials with other R users. We...

    Started by klo‎, 08-25-2015 11:55 AM
    r programing
    • Replies: 0
    • Views: 165
    08-25-2015, 11:55 AM Go to last post
  9. How to draw a ROC curve in R

    I know how to estimate a model and then draw a ROC curve using R. But I have got a dataset which has already included probability of failure and the...

    Started by t.wang21@yahoo.com.au‎, 08-20-2015 07:59 PM
    • Replies: 2
    • Views: 264
    08-23-2015, 04:23 PM Go to last post
  10. Ordering Data

    Hello, everyone! I am still learning to use Statistical softwares and I have a question about R. I have a data table which has one column...

    Started by Gabriella‎, 08-21-2015 11:28 AM
    data, rstudio, tables
    • Replies: 4
    • Views: 195
    08-21-2015, 12:32 PM Go to last post
  11. Problems installing Caret package

    Hi, I am having problems installing package caret in order to use library carer install.packages("caret") library(caret The installation...

    Started by juanvg1972‎, 08-13-2015 04:43 PM
    • Replies: 2
    • Views: 185
    08-19-2015, 04:48 PM Go to last post
  12. Problem using predictions with decision trees (CART) in CARET package

    I am having problems doing a prediction with decision trees (CART). I have this code: training <- read.csv("pml-training.csv", header=TRUE)...

    Started by juanvg1972‎, 08-19-2015 04:47 PM
    • Replies: 0
    • Views: 101
    08-19-2015, 04:47 PM Go to last post
  13. Latent class cluster analysis with mixed data

    I have data that contains continuous and categorical variables and I have to cluster that data using latent class analaysis - LCA. I know that LCA...

    Started by ArtemisEntr3ri‎, 08-19-2015 07:09 AM
    clustering, latent class analysis, latent class modeling, latent profile anaysis
    • Replies: 0
    • Views: 106
    08-19-2015, 07:09 AM Go to last post
  14. rsession.exe - Entry Point Not Found

    I recently install the newest version of RStudio Version 0.99.473 and when i start i get this message (error) " rsession.exe - Entry Point Not...

    Started by dezo_pp‎, 08-19-2015 06:26 AM
    • Replies: 0
    • Views: 118
    08-19-2015, 06:26 AM Go to last post
  15. RStudio Data View

    Recently i instal the newest version of RStudio Version 0.99.473 and when i want to see the dataset and when i click on the dataset or when i write...

    Started by dezo_pp‎, 08-19-2015 05:13 AM
    • Replies: 0
    • Views: 74
    08-19-2015, 05:13 AM Go to last post
  16. Alternative R Implementations

    Hello, despite of GNU-R (www.r-project.org) there are a number of - appearingly more performant - R implementations: Implementation |...

    Started by consuli‎, 08-09-2015 02:20 AM
    • Replies: 1
    • Views: 147
    08-19-2015, 04:23 AM Go to last post
  17. Jointure de 2 fichiers avec des colonnes différentes

    bonjour mes amis et amies j'ai problème sur mon code de R .je voudrai faire une fusion des 2 fichiers sans la fonction merge qui est destinée au...

    Started by ndiayediop2‎, 08-19-2015 03:15 AM
    • Replies: 0
    • Views: 96
    08-19-2015, 03:15 AM Go to last post
  18. using as.integer as instructed by "The R Book" (2013, p. 44) - doesn't work.

    Hi everyone, I've searched the forums but haven't had any answers on this small problem. I've tried a to coerce a vector to being an integer as...

    Started by محمد Nizaar‎, 08-18-2015 01:11 PM
    as.integer, code problem
    • Replies: 4
    • Views: 178
    08-19-2015, 02:33 AM Go to last post
  19. Output In R

    Hello All, As i am a newbie in R so most of you would have seen this question zillion times. I searched for the answer on this forum as well on...

    Started by Shivi‎, 08-18-2015 05:29 AM
    r programming and usage, r tips and tutorials
    • Replies: 0
    • Views: 105
    08-18-2015, 05:29 AM Go to last post
  20. Help with subsetting

    Hi All, I have a dataset arranged vertically (so the question names are in rows I have used the following code to create a new column...

    Started by drewmac‎, 08-14-2015 09:16 AM
    • Replies: 2
    • Views: 309
    08-15-2015, 03:53 AM Go to last post
  21. operators

    Just trying to clarify a couple of things: 1) (this was from chat room) what is the purpose of the % || % operator? and 2)

    Started by bugman‎, 08-13-2015 06:51 PM
    • Replies: 3
    • Views: 227
    08-14-2015, 08:56 PM Go to last post
  22. Error in inherits(x, "response") - local variable

    Hey, being absolutely unfamiliar with some basic understanding of how a "inherit" works, I have trouble finding out where I went wrong. I was...

    Started by lammy2004‎, 08-14-2015 05:04 PM
    • Replies: 0
    • Views: 109
    08-14-2015, 05:04 PM Go to last post
  23. error bars on R

    hi eveyone, i'm trying to make some errors bars on my barplots. So I use a way that I know but it is not working for a wilcoxon test, only for a...

    Started by hugues‎, 08-13-2015 12:21 PM
    error bars, gplot, wilcoxon-test
    • Replies: 0
    • Views: 76
    08-13-2015, 12:21 PM Go to last post
  24. Crosstable with 2 var resuming 1 and using weights?

    Hi I've been looking and asking in forums, but i just can't solve this. Suppose you have 4 variables in a survey: sex: sex of the person...

    Started by jfca283‎, 08-11-2015 02:49 PM
    • Replies: 2
    • Views: 166
    08-11-2015, 03:09 PM Go to last post
  25. Problems with confirmatory factor analysis in R

    I am trying to teach myself confirmatory factor analysis by working through examples in a textbook. The textbook only contains syntax for LISREL or...

    Started by brittany00‎, 08-11-2015 12:42 PM
    cfa, degreees of freedom, factor analysis, sem
    • Replies: 0
    • Views: 98
    08-11-2015, 12:42 PM Go to last post
  26. Problems loading R-commander

    Hi all, I'm using Windows 7 and currently having problem loading R-commander. I tried installing it using the following commands: ...

    Started by miyii‎, 07-28-2015 02:24 AM
    • Replies: 9
    • Views: 348
    08-10-2015, 03:30 AM Go to last post
  27. Long run distribution

    I have been worked out a transition matrix of a Markov chain using the Metropolis algorithm, and now have to use R in order to show that it has the...

    Started by mh03‎, 08-10-2015 12:55 AM
    long run distribution, markov chain, metropolis-hastings
    • Replies: 0
    • Views: 120
    08-10-2015, 12:55 AM Go to last post
  28. Getting incorrect output for R function

    I'm pretty new to using R so apologies if this is a silly question... I have an exercise that asks me to write a function that "given a vector 'x'...

    Started by Bijoux‎, 08-08-2015 01:15 AM
    • Replies: 4
    • Views: 195
    08-09-2015, 08:46 PM Go to last post
  29. Zoo objects make me wanna kill a raptor

    Am I getting old or is this a bit wierd library(zoo) cool1=structure(c(9.38024, 9.321716, 9.298116, 6.996241, 6.996241, 7.011319,...

    Started by JesperHP‎, 08-08-2015 10:53 AM
    • Replies: 2
    • Views: 157
    08-08-2015, 11:13 AM Go to last post
  30. Profile Confidence Interval in lmer model .

    When I fit lmer model with my data , there is no warning message. But when I tried to construct confidence interval by `confint` , it shows the...

    Started by Cynderella‎, 08-08-2015 08:26 AM
    lme4, lmer, mixed effect models, r help, random effects model
    • Replies: 0
    • Views: 121
    08-08-2015, 08:26 AM Go to last post
  31. Need help, please. Trying to graph a table for 1st time

    Hi. I started using for the 1st time this R tool. Today I attempted to create a graph but keep receiving the following message: "In xy.coords(x,...

    Started by Lobo‎, 08-04-2015 07:39 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 489
    08-07-2015, 06:52 PM Go to last post
  32. How to remove one axis line plot from plot3d in R

    How to remove lines plot3d in R for particular one axis because when I use type='l' then it is drawing line in every axis. rgl.viewpoint( zoom =...

    Started by swpnit‎, 08-06-2015 03:31 AM
    • Replies: 1
    • Views: 141
    08-06-2015, 07:04 PM Go to last post
  33. linking to the MS server

    I am trying to be able to pull data directly from the MS Server into R. Bryan sent me this code conn <- odbcDriverConnect("driver={SQL...

    Started by noetsi‎, 08-04-2015 12:40 PM
    • Replies: 14
    • Views: 265
    08-06-2015, 06:51 PM Go to last post
  34. Missing Data in R

    Hello Everyone, I'm a pretty new R user, so let me apologize in advance if I am missing something obvious in my question. I have been looking...

    Started by user100‎, 08-04-2015 06:01 PM
    • Replies: 5
    • Views: 223
    08-06-2015, 11:19 AM Go to last post
  35. Find the function from a graph

    Hello, I just wanted to know how to have the function from a graph. Actually I had the graph from the solve of an differential equation, with dS,...

    Started by dentifrice‎, 08-06-2015 12:25 AM
    • Replies: 0
    • Views: 111
    08-06-2015, 12:25 AM Go to last post
  36. Question about Kolmogorov-Smirnov Test in R

    Hi all, I'm a bit confused about the way handles the Kolmogorov-Smirnov test for comparing two distributions. From what I know about the K-S test,...

    Started by eugeneby‎, 08-05-2015 01:19 PM
    kolmogorov-smirnov, ks.test
    • Replies: 0
    • Views: 114
    08-05-2015, 01:19 PM Go to last post
  37. R: Do I need to change factors to dummies?

    Hello everyone, I am planning to do an analysis with time series data where the dependent variables are mostly factors in R, ranging from 2 to 164...

    Started by Charlotte010‎, 05-29-2015 06:22 AM
    • Replies: 1
    • Views: 281
    08-05-2015, 01:12 PM Go to last post
  38. Export crosstab to xls/txt/csv file?

    Hi I recently run a simple tabulate with crosstab as this shows you crosstab(var1,var2,varweigth) But i can't export to any kind of output file....

    Started by jfca283‎, 07-23-2015 03:29 PM
    • Replies: 9
    • Views: 246
    08-05-2015, 01:05 PM Go to last post
  39. Manipulating specific index numbers in a list

    Hi, So I have a giant list of data (1000s of rows long) I just need to carry out a simple mathematical operation of multiplying all coefficients...

    Started by TheK9E‎, 08-05-2015 11:30 AM
    • Replies: 3
    • Views: 111
    08-05-2015, 11:50 AM Go to last post
  40. "getVarCov" in lme

    Is "getVarCov" of lme output gives variance-covariance of estimated "Standard Deviation" of random effects or variance-covariance of estimated...

    Started by Cynderella‎, 08-04-2015 11:45 AM
    lme, mixed effects model, nlme, r help
    • Replies: 0
    • Views: 102
    08-04-2015, 11:45 AM Go to last post
  41. How is to define the lme model syntax .

    The following model assumes that the covariance between the random intercepts and random slopes across Subjects is Zero . lmer(Reaction ~ Days +...

    Started by Cynderella‎, 08-04-2015 06:59 AM
    lme, lme random-effect, mixed effects model, r code help, random effects model
    • Replies: 0
    • Views: 102
    08-04-2015, 06:59 AM Go to last post
  42. spell check large document R

    I have a large corpus I want to data mine but I want to spell check it first. What I specifically want is the spell checker to automatically correct...

    Started by Lazar‎, 08-03-2015 11:54 PM
    • Replies: 0
    • Views: 127
    08-03-2015, 11:54 PM Go to last post
  43. Package Installation problem

    I installed lavaan with no problem. Then when I did a library statement I get Error in loadNamespace(j <- i], c(lib.loc, .libPaths()),...

    Started by noetsi‎, 08-03-2015 09:49 AM
    • Replies: 11
    • Views: 209
    08-03-2015, 11:18 PM Go to last post
  44. Specifying the variance component model "varComp" in R .

    I am trying to fit a random slope model by "varComp" in R . For the following example , that is in "lmer" syntax , how can I write it in "varComp"...

    Started by Cynderella‎, 08-03-2015 09:03 PM
    mixed effects model, multilevel, r code help, r help, random effects model
    • Replies: 0
    • Views: 119
    08-03-2015, 09:03 PM Go to last post
  45. translate the SAS code to r code

    Hi, is there anyone can help me translate the SAS code to r code. Thank you very much! %let product_list = 1 2 3 4 5 6; %let...

    Started by Chenj‎, 08-03-2015 03:34 PM
    • Replies: 0
    • Views: 122
    08-03-2015, 03:34 PM Go to last post
  46. Plot estimated and observed lines - Cox regression

    Hi all I'm new here. I've been searching for a method to plot an estimated value through cox regression model and the observed value together....

    Started by Cheung02‎, 08-03-2015 10:10 AM
    • Replies: 0
    • Views: 98
    08-03-2015, 10:10 AM Go to last post
  47. Shiny apps - Facebook data mining using R

    Hello everyone, last time I posted one thread about collecting data from Facebook. You can watch the tutorial here https://youtu.be/_qMh8fmQbAY...

    Started by bobbymistery‎, 08-03-2015 06:13 AM
    • Replies: 0
    • Views: 177
    08-03-2015, 06:13 AM Go to last post
  48. Making a Reaction Stoichiometry Matrix

    Hey, I am really new to coding and using R. I have been provided with this parsing code so far ## Open R ## Load source code (file --> souce R...

    Started by TheK9E‎, 07-31-2015 05:55 PM
    • Replies: 0
    • Views: 177
    07-31-2015, 05:55 PM Go to last post
  49. Put x axis in correct order

    Hello guys, I am having problem in r, as you can see, my data starts from November 2014. It ends at July 2015. However if i plot it in graph. It...

    Started by Mr Good News‎, 07-30-2015 10:07 PM
    • Replies: 5
    • Views: 266
    07-31-2015, 10:44 AM Go to last post
  50. Converting Categorical Columns into Multiple Binary Columns in R

    I am trying to convert a column that has categorical data ('A', 'B', or 'C') to 3 columns where 1,0,0 would be 'A'; 0,1,0 would represent 'B', etc. ...

    Started by atomant‎, 07-30-2015 04:24 PM
    neuralnet
    • Replies: 2
    • Views: 197
    07-30-2015, 05:26 PM Go to last post
  51. Interpretation of various output of "lmer" function in R

    library(lme4) fm1 <- lmer(Reaction ~ Days + (Days | Subject), sleepstudy) The notation `(Days | Subject)` says to allow the intercept and...

    Started by Cynderella‎, 07-27-2015 12:05 AM
    lmer, mixed effects model, multilevel model, random effects model, variance components
    • Replies: 5
    • Views: 279
    07-30-2015, 09:55 AM Go to last post
  52. Frequency table and plots for bird observations

    Hi, It's been several years since I last used R and I have what I hope is a simple problem. I am helping to create frequency plots of bird...

    Started by rgilson‎, 07-30-2015 08:18 AM
    frequency
    • Replies: 1
    • Views: 145
    07-30-2015, 09:16 AM Go to last post
  53. Post Getting variable names of desired values

    Hi, My data (group) has 300 variables showing which group it belong to in the second row..There are a total of 6 groups ...

    Started by maisarah‎, 07-30-2015 05:54 AM
    • Replies: 2
    • Views: 140
    07-30-2015, 07:29 AM Go to last post
  54. Confidence interval of parameters of mixed-model in R

    Hi , can anyone please explain me the following output produces in `R` when I ran the command `confint(lmer())` . Here is the R code : ...

    Started by Cynderella‎, 07-24-2015 10:52 PM
    confidence interval, lmer, mixed model, r output, variance components
    • Replies: 4
    • Views: 298
    07-30-2015, 01:16 AM Go to last post
  55. but ther's a decent progress bar?

    in R-Rstudio? ther're many that works in *for* loops that finally are unnecessary...are toys... ther's a decent package that monitor low level c++...

    Started by Madp‎, 07-29-2015 06:22 PM
    • Replies: 1
    • Views: 158
    07-29-2015, 07:28 PM Go to last post
  56. How an ARIMAX{TSA} model is represented in R

    have a relatively simple problem, but yet taking some time to solve it. I am suing ARIMAX{TSA} function. This is the model out <-...

    Started by wasif‎, 07-29-2015 11:16 AM
    arimax, dynamic regression. arima
    • Replies: 0
    • Views: 141
    07-29-2015, 11:16 AM Go to last post
  57. How can I calculate Standard Errors of Variance Estimates .

    I want to extract the "standard error" of variance component from the output of "lmer" . In Chapter 12 , Experiments with Random Factors , of the...

    Started by Cynderella‎, 07-29-2015 06:18 AM
    • Replies: 0
    • Views: 133
    07-29-2015, 06:18 AM Go to last post
  58. Standard Error of variance component from the output of lmer .

    I want to extract the "standard error" of variance component from the output of "lmer" . library(lme4) model <- lmer(Reaction ~ Days +...

    Started by Cynderella‎, 07-29-2015 03:16 AM
    lme4, lmer, mixed effect models, r help, random effects model
    • Replies: 0
    • Views: 111
    07-29-2015, 03:16 AM Go to last post
  59. R Workspace Disappearing?

    I have a LOT of code that is computationally intensive. It takes a long time to run. I'd love to be able to paste in all of my code, hit run, and...

    Started by TalkStatNewb‎, 07-28-2015 11:18 PM
    • Replies: 1
    • Views: 128
    07-29-2015, 02:35 AM Go to last post
  60. Difference between two lmer model .

    Can you please explain where is the difference between the following two models : fm1 <- lmer(Reaction ~ Days + (Days | Subject), sleepstudy)...

    Started by Cynderella‎, 07-27-2015 07:51 AM
    correlation, lmer, mixed effect models, multilevel model, random effects model
    • Replies: 3
    • Views: 252
    07-28-2015, 10:04 AM Go to last post

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