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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: 272
    • Views: 34,989
    08-31-2014, 02:22 PM Go to last post
  2. 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
    5 Pages
    1 2 3 ... 5
    • Replies: 63
    • Views: 13,023
    08-12-2014, 06:30 PM Go to last post
  3. 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: 106
    • Views: 14,387
    07-17-2014, 04:31 PM Go to last post
  4. 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
    22 Pages
    1 2 3 ... 22
    • Replies: 321
    • Views: 30,829
    06-18-2014, 04:13 PM 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 09:22 AM
    7 Pages
    1 2 3 ... 7
    information
    • Replies: 99
    • Views: 30,457
    05-22-2014, 02:07 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 07:20 PM
    • Replies: 0
    • Views: 4,052
    10-17-2012, 07:20 PM Go to last post
  1. Help a novice day. Have you helped a novice today?

    So anyway, this plot is awesome. http://www.datapointed.net/2012/02/san-francisco-rain-year-before-after-valentines-day/ I emailed the...

    Started by bugman‎, 09-15-2014 07:40 PM
    • Replies: 9
    • Views: 227
    Today, 06:07 PM Go to last post
  2. Calculating effect size with interaction term

    If I am running multiple regression in r, what is the next step in order to get the effect size for all variables when there's also an interaction...

    Started by bcrider‎, Today 03:11 PM
    effect size, interaction, r program, regression
    • Replies: 0
    • Views: 37
    Today, 03:11 PM Go to last post
  3. Unexpected output from BayesFactor package function, 'ttestBF'

    I'm new to Bayesian stats as well as R (my last stats class was six years ago) but I've done everything I can do get where I'm at... I am a grad...

    Started by Xenodius‎, Yesterday 03:02 PM
    • Replies: 7
    • Views: 178
    Today, 02:17 PM Go to last post
  4. Desnsity weighted average between two quantiles (normal distribution)

    Hello! I want to calculate the density weighted aqverage between two quantiles. For instance I can calculate the quantiles of the normal...

    Started by consuli‎, 09-15-2014 04:37 PM
    • Replies: 1
    • Views: 99
    Yesterday, 03:34 PM Go to last post
  5. step-by-step guide to build a package in R

    Hello, I was looking for a good step-by-step guide to build a package in R. I have made a search on the Web and YouTube and I have found something,...

    Started by gianmarco‎, 09-16-2014 02:25 PM
    • Replies: 3
    • Views: 99
    Yesterday, 09:31 AM Go to last post
  6. how to thicken a line on ggplot2?

    hi! question, i'm trying to do a basic density plot on ggplot2 on which i want to overlay a normal distribution curve. the problem i have is...

    Started by spunky‎, 09-16-2014 04:15 PM
    • Replies: 3
    • Views: 104
    09-16-2014, 06:28 PM Go to last post
  7. Batch Forecast Multiple SKU's - Help

    Hello, I am new to R and ran a few tutorials on how to run a forecast for 1 SKU. I have also read this: ...

    Started by audan2009‎, 09-16-2014 04:02 PM
    batch forecast, forecasting
    • Replies: 2
    • Views: 91
    09-16-2014, 04:33 PM Go to last post
  8. Angry Estimation Problem ARMAX and ARMAX-GARCH

    Hey! Iam facing a problem with the estimation of ARMAX and ARMAX-GARCH models. The ARMAX model is estimated with arima() and the ARMAX-GARCH model...

    Started by lamse‎, 09-15-2014 03:32 AM
    • Replies: 2
    • Views: 85
    09-16-2014, 05:14 AM Go to last post
  9. R Studio won't open

    Hi all, Question about R Studio. I downloaded R and R Studio a few months ago. When I first tried to use them, R Studio froze my computer and I...

    Started by JWFan‎, 07-27-2014 07:27 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 597
    09-15-2014, 05:53 PM Go to last post
  10. Error when using msmFit in R

    I'm trying to generate transition probabilities in R using the Markov Switching method. I wrote the following code and then got the error as per...

    Started by hana88‎, 09-15-2014 08:59 AM
    • Replies: 0
    • Views: 89
    09-15-2014, 08:59 AM Go to last post
  11. How to perform sequential test for type of linearity

    Dear everyone, I am a newbie and I hope to receive your help. In the paper I attached below, there is a sequential test for type of linearity,...

    Started by cuong.tqk‎, 09-15-2014 03:40 AM
    • Replies: 0
    • Views: 72
    09-15-2014, 03:40 AM Go to last post
  12. Matching and returning values in R

    Hello, please forgive my ignorance, I want to return the year, mean SO2, from the data set pollution data of certain rows, where the sited_key...

    Started by chan‎, 09-13-2014 10:49 PM
    • Replies: 0
    • Views: 115
    09-13-2014, 10:49 PM Go to last post
  13. Processor cores - many or a few with speed?

    I am going to buy a new computer ( Dell workstation T5810 - Windows 8) to work with simulatons in R. Now I am asked what kind of processor I like...

    Started by Leif‎, 09-12-2014 05:44 AM
    processor cores
    • Replies: 0
    • Views: 105
    09-12-2014, 05:44 AM Go to last post
  14. Exclamation installing rpud got unrecognized option '-Wl'

    I am trying to install the package rpud on a CENTOS Linux server and got the following error: /usr/local/cuda/bin/nvcc -shared -Xlinker "...

    Started by LEBRoger‎, 05-09-2013 11:43 AM
    installation, package, r ld rpud -wl linker, r-lang
    • Replies: 4
    • Views: 938
    09-12-2014, 03:53 AM Go to last post
  15. plot start & end times on y axis

    Dear R's, I have the data attached in excel file I want to plot start and end time range on y axis I want to plot the data as displayed in...

    Started by nau‎, 09-11-2014 11:03 PM
    • Replies: 0
    • Views: 100
    09-11-2014, 11:03 PM Go to last post
  16. Fleming-Harrington weighted Log-Rank test help

    Hi, I am looking for a package that allows you to run the Fleming-Harrington weighted Log-Rank test with different combinations of Rho and Gamma. Any...

    Started by joyrus‎, 09-11-2014 10:42 PM
    • Replies: 0
    • Views: 80
    09-11-2014, 10:42 PM Go to last post
  17. Scaling the rows of a matrix

    I'm facing a problem while scaling(z-transform) the row values of a numeric data matrix,using the following code: rm(list=ls()) set.seed(12345)...

    Started by the_august‎, 09-11-2014 12:54 PM
    matrix, scaling
    • Replies: 0
    • Views: 99
    09-11-2014, 12:54 PM Go to last post
  18. How to define a field inside a dataframe based on the columnname and the rowname ?

    I have a dataframe called HMDAYTIME with the columnname "A" and the rownames "2" and "3", and based on a raw data csv called "DATA". My question...

    Started by The_AC‎, 09-11-2014 04:58 AM
    assign, column, dataframe, row, values
    • Replies: 0
    • Views: 98
    09-11-2014, 04:58 AM Go to last post
  19. How to input discrete pmf

    Hi there! I need to input this function into R, and I'm having some difficulty as to how to go about this: a discrete random variable X with pmf...

    Started by shelbyrocker‎, 09-10-2014 02:17 PM
    • Replies: 1
    • Views: 86
    09-10-2014, 02:40 PM Go to last post
  20. two way table with weighted statistics?

    Hi I'm trying to understand R. I often work with stata. I need to perform a simple cross tabulation table like this...

    Started by jfca283‎, 09-10-2014 01:45 AM
    • Replies: 0
    • Views: 101
    09-10-2014, 01:45 AM Go to last post
  21. ChAMP Help!!

    Hi everyone, I was wondering whether you would be able to help me with ChAMP. I'm working on the software through R studio and having difficulty...

    Started by avemcm‎, 09-09-2014 07:28 PM
    champ, methylation, r studio
    • Replies: 2
    • Views: 115
    09-09-2014, 10:14 PM Go to last post
  22. software to run ordinal generalized linear mixed model with nonproportional odds?

    Does any body know of a software program that will allow me to run an ordinal generalized linear mixed model with nonproportional odds? I've been...

    Started by Cynthia Tedore‎, 09-06-2014 04:17 AM
    mixcat, mixed model, nonproportional odds, npmlt, ordinal
    • Replies: 0
    • Views: 118
    09-06-2014, 04:17 AM Go to last post
  23. please help on the gap plot

    With the below dataset, the variables are CONCentration, DOSE and TIME. I would like to display dosing information on the gap plots. Dosing...

    Started by zzz‎, 09-03-2014 06:37 PM
    • Replies: 5
    • Views: 255
    09-04-2014, 04:18 PM Go to last post
  24. Westfall Regression ;)

    So I was explaining a problem I had a while back with question types as follows: Did you receive information on university from a career...

    Started by Lazar‎, 09-03-2014 07:02 PM
    • Replies: 1
    • Views: 144
    09-03-2014, 07:16 PM Go to last post
  25. fportfolio package

    Hi Guys, Completely new to the site and to R in general. I'm currently watching a very useful youtube tutorial related to financial applications...

    Started by esuric‎, 09-03-2014 08:58 AM
    • Replies: 2
    • Views: 131
    09-03-2014, 09:22 AM Go to last post
  26. how to save MLR output?

    Hi, How can one save the outputs for 1. step-wise regression (steps, summary and anova) 2. summary (lm) 3. anova(lm) into text or word files...

    Started by Deccantraps‎, 08-31-2014 03:59 AM
    save output
    • Replies: 3
    • Views: 193
    09-02-2014, 06:18 PM Go to last post
  27. simulating beta-hat in regression

    how would you go about simulating beta-hat in multiple regression if you wanted to illustrate convergence? The reason I'm asking is because of the...

    Started by JesperHP‎, 09-02-2014 01:37 PM
    • Replies: 2
    • Views: 131
    09-02-2014, 03:52 PM Go to last post
  28. ARMAX-GARCHX model with QML-Estimation

    Hey guys, I am currently facing a problem with my data, which does not necessarily fulfill the normality assumptions. The ML estimation should...

    Started by lamse‎, 09-02-2014 02:31 AM
    • Replies: 4
    • Views: 182
    09-02-2014, 03:44 PM Go to last post
  29. Wordfish task - first issue "package ‘tm’ was built under R version 2.15.3"

    Hello and thank you for taking the time to read my thread, Background: I plan on using Wordfish and TM to measure change in political positions...

    Started by Edmund‎, 09-01-2014 04:51 PM
    • Replies: 4
    • Views: 255
    09-01-2014, 07:10 PM Go to last post
  30. Resampling in R

    Hi I want to generate two sets of random numbers and see how many times the same number appears in both columns. In R I have been using the code...

    Started by hyenaconflict‎, 08-29-2014 11:06 AM
    r commands, replicate, sample
    • Replies: 5
    • Views: 201
    09-01-2014, 05:46 AM Go to last post
  31. Problem in putting variable into axis label

    Hello! I have built the attached function to calculate the significance of selected dimensions of Correspondence Analysis (it requires the...

    Started by gianmarco‎, 08-31-2014 10:30 AM
    • Replies: 6
    • Views: 192
    08-31-2014, 02:03 PM Go to last post
  32. "Error in manova, need multiple responses"

    I'm a little baffled by this. I have a set of data with the following headers: Condition, Teacher, Level, All, C1, C2, C3 The first three are the...

    Started by JoynerCN‎, 11-14-2013 11:08 PM
    • Replies: 4
    • Views: 824
    08-30-2014, 03:24 PM Go to last post
  33. [R packages] I want to know using the fastSOM packages correctly and plot spillover

    I recently know the fastSOM package from google. So I download the package. But I’m beginner in R. And I really want to studying spillover...

    Started by wawataiji‎, 08-30-2014 12:23 PM
    fastsom packages, rprogram, spillover
    • Replies: 3
    • Views: 214
    08-30-2014, 01:58 PM Go to last post
  34. Is this a valid DSN and if so, why can't I odbcConnect?

    I am trying to 'prove-a-concept': MySQL+R+LaTeX report generation for my department. RODBC is installed and loaded. I have created a sample...

    Started by soon‎, 08-30-2014 08:15 AM
    • Replies: 0
    • Views: 147
    08-30-2014, 08:15 AM Go to last post
  35. Copulas in R

    Hello, I want to simulate the portfolio-VAR using copulas. In the simulation I wanna use copulas instead of correlations, as they are more...

    Started by consuli‎, 08-29-2014 01:45 PM
    • Replies: 1
    • Views: 133
    08-29-2014, 03:42 PM Go to last post
  36. Latent Profile Analysis in R - Is it possible?

    Hello Forum, I am trying to run latent profile analysis for a work project. The measure includes 8 continuous variables (5-point Likert scale...

    Started by Samstats‎, 08-28-2014 07:31 PM
    latent profile anaysis, lpa, polca
    • Replies: 4
    • Views: 243
    08-28-2014, 10:05 PM Go to last post
  37. parse text into list of list

    Hi Folks, I have some bibtex data as follows: @article{ author = {Atkin, A. J. and Gorely, T. and Biddle, S. J. and Marshall, S. J. and...

    Started by Lazar‎, 08-27-2014 10:37 PM
    • Replies: 13
    • Views: 245
    08-28-2014, 07:54 PM Go to last post
  38. Stepwise regression in R using multiple variables of choice

    Hello all. I need a little help in translating SPSS language into R. In SPSS, you can run stepwise regression by entering them into "Blocks"...

    Started by bunguman‎, 08-20-2012 05:25 PM
    regression, spss, stepwise
    • Replies: 3
    • Views: 847
    08-26-2014, 12:35 PM Go to last post
  39. How to change the color gradient of kernel density estimation in R (MASS package)

    Hey there, I processed kernel density estimation on data points and I got the result attached which is all good. The only thing I need to change...

    Started by koronfelina‎, 08-24-2014 06:16 PM
    • Replies: 1
    • Views: 198
    08-25-2014, 03:39 PM Go to last post
  40. Plotting hurdle regression results

    I am attempting to plot hurdle regression output with an interaction term in R, but I having some trouble doing so with the negative binomial count...

    Started by Nick123‎, 08-22-2014 01:49 AM
    • Replies: 0
    • Views: 175
    08-22-2014, 01:49 AM Go to last post
  41. Kruskal Wallis with unpaired columns

    Hello, I want to do a KW-test to compare four unpaired columns. What is the code for that? Especailly i am not sure what to put in for "g" ...

    Started by timosch‎, 08-21-2014 05:00 PM
    • Replies: 1
    • Views: 163
    08-21-2014, 08:43 PM Go to last post
  42. Creating color coded tables in R (for export and printing)

    This may be better solved using LaTex, so if anyone knows how to do it that way (either in LaTex or in R-studio with Knitr), I'm open to that as...

    Started by APOCooter‎, 08-21-2014 01:57 PM
    • Replies: 3
    • Views: 189
    08-21-2014, 03:27 PM Go to last post
  43. R Output Interpretation

    Hi all, First time poster and a novice with this stuff so please go easy! Although I would really appreciate some help. I have been given a...

    Started by talbobai‎, 08-21-2014 01:40 PM
    interpreting output, kernel, regression help, time varying
    • Replies: 0
    • Views: 161
    08-21-2014, 01:40 PM Go to last post
  44. R results interpretation??

    Hi all, First time poster and a novice with this stuff so please go easy! Although I would really appreciate some help. I have been given a...

    Started by talbobai‎, 08-21-2014 01:31 PM
    help please, interpretation, kernel, output, time varying
    • Replies: 0
    • Views: 16
    08-21-2014, 01:31 PM Go to last post
  45. Robust Split-plot ANOVA in R

    Hi, I have conducted a physiological research designed in bewteen-by-within way. A split-plot ANOVA analysis would be most suitable for my...

    Started by Martin Marko‎, 04-14-2014 06:32 AM
    • Replies: 4
    • Views: 533
    08-21-2014, 06:02 AM Go to last post
  46. how to summarize data

    Hello, I am attempting to use the plyr package and SummarySE function to summarize the following data.. structure(list(Day = c(1L, 2L, 3L, 1L,...

    Started by deangelr‎, 08-19-2014 10:22 AM
    • Replies: 2
    • Views: 230
    08-19-2014, 10:51 AM Go to last post
  47. Recoding Data

    Hi guys! This seems like an easy enough topic...but I CANNOT find it anywhere on the internet. I'm probably looking in all the wrong places so I...

    Started by gene2420‎, 08-15-2014 04:21 PM
    • Replies: 2
    • Views: 233
    08-15-2014, 04:29 PM Go to last post
  48. [SOLVED] error installing shiny

    I am trying to learn shiny, but cannot install it. Error message below: I have never seen the error " installation of package ‘shiny’ had...

    Started by bugman‎, 08-12-2014 05:12 AM
    • Replies: 9
    • Views: 330
    08-15-2014, 02:50 AM Go to last post
  49. 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: 214
    08-14-2014, 04:41 PM Go to last post
  50. probability plot in R

    Hello, everyone I am working on binary logistic regression and would like to draw probability graph varying the value of V62(a financial ratio...

    Started by t.wang21@yahoo.com.au‎, 08-07-2014 12:26 AM
    • Replies: 2
    • Views: 260
    08-13-2014, 11:38 PM Go to last post
  51. Korean letters are not displayed properly (broken) when connected to Database

    I have tried to import MS SQL Server data to R. At first, made a DSN and then made a code in Rstudio. As like...... > conn_mssql <-...

    Started by orestes‎, 08-13-2014 11:06 PM
    korean letter
    • Replies: 0
    • Views: 101
    08-13-2014, 11:06 PM Go to last post
  52. New 'averages' data set baed on column values

    Hello, I have a dataset (reproduced below) where I have three measures ('A', 'B', and 'C'), and each measure is other from a male or a female,...

    Started by deangelr‎, 08-13-2014 12:55 PM
    • Replies: 4
    • Views: 268
    08-13-2014, 05:16 PM Go to last post
  53. R -> Excel

    Hello, Does someone know how to export properly a matrix from R to Excel or CSV ? I know that I need to use write.csv() but it never gives a...

    Started by roukyno1‎, 07-17-2014 09:26 AM
    • Replies: 3
    • Views: 319
    08-13-2014, 01:13 PM Go to last post
  54. rpart gini classification help

    Hi Just having some issues building classification trees with rpart. I can reproduce my problem. First a successfully built tree: ...

    Started by wolfwoolford‎, 08-11-2014 07:29 PM
    r rpart classification c
    • Replies: 2
    • Views: 198
    08-12-2014, 07:52 AM Go to last post
  55. TARX: Threshold Autoregressive Model with exogenous variables

    Hey guys! Iam currently working on my bachelors thesis. I am comparing different methods for electricity price forecastings. The literature uses...

    Started by lamse‎, 08-09-2014 02:43 AM
    • Replies: 1
    • Views: 203
    08-10-2014, 04:50 PM Go to last post
  56. Efficient way to identify observations in plot of first two Principle Components?

    So I am doing a Principle Component Analysis to identify possible underlying population substructure for a "genetics analysis" I'm doing. Here is a...

    Started by BearJewJ‎, 08-07-2014 10:51 AM
    • Replies: 1
    • Views: 189
    08-07-2014, 12:26 PM Go to last post
  57. Question calculate marginal effects using mlogit package

    Hi R-users I try to calculate marginal effects of a multinomial logistic regression. To do this i use mlogit package and effects() function. ...

    Started by lmoulin‎, 06-07-2013 06:54 AM
    logit model, marginal effects, mlogit, multinomial regression
    • Replies: 8
    • Views: 1,655
    08-07-2014, 03:26 AM Go to last post
  58. Prediction using Support Vector (SV) method in R

    Dear Friends, I came to know that using SVM method we can predict the future value more accurately than other normal methods (like ARIMA). My...

    Started by mathan_leo‎, 08-05-2014 01:33 AM
    • Replies: 2
    • Views: 234
    08-06-2014, 01:20 AM Go to last post
  59. help needed to convert the date and clock time to hours, Thanks

    data = structure(list(ID = c(1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L, 1544L,...

    Started by zzz‎, 08-04-2014 05:29 PM
    • Replies: 3
    • Views: 209
    08-05-2014, 10:29 AM Go to last post
  60. Need Help doing adaptive lasso penalized regression from "lqa" package

    Hello, I need some help learning how to use the lqa package for doing penalized regression, in particular, I am trying to implement to "adaptive...

    Started by BearJewJ‎, 07-31-2014 12:50 PM
    • Replies: 1
    • Views: 221
    08-04-2014, 02:37 PM Go to last post

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