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 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: 17,247
    Yesterday, 09:28 AM 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 11:39 AM
    22 Pages
    1 2 3 ... 22
    • Replies: 322
    • Views: 35,256
    10-23-2014, 08:26 PM Go to last post
  3. 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: 40,125
    10-20-2014, 11:21 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 06:08 AM
    5 Pages
    1 2 3 ... 5
    • Replies: 63
    • Views: 15,571
    08-12-2014, 07:30 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 10:22 AM
    7 Pages
    1 2 3 ... 7
    • Replies: 99
    • Views: 33,039
    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: 5,079
    10-17-2012, 08:20 PM Go to last post
  1. 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, Yesterday 09:43 AM
    • Replies: 0
    • Views: 77
    Yesterday, 09:43 AM Go to last post
  2. 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: 4
    • Views: 139
    Yesterday, 09:13 AM Go to last post
  3. 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: 176
    11-21-2014, 06:23 PM Go to last post
  4. 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: 167
    11-20-2014, 03:21 PM Go to last post
  5. 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: 151
    11-19-2014, 07:28 PM Go to last post
  6. 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: 261
    11-17-2014, 06:35 AM Go to last post
  7. 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: 173
    11-17-2014, 05:28 AM Go to last post
  8. 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: 282
    11-15-2014, 09:04 PM Go to last post
  9. 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: 329
    11-15-2014, 07:25 PM Go to last post
  10. 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: 239
    11-15-2014, 07:13 PM Go to last post
  11. 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: 228
    11-14-2014, 03:18 PM Go to last post
  12. 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: 163
    11-14-2014, 06:57 AM Go to last post
  13. 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: 247
    11-14-2014, 12:11 AM Go to last post
  14. 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: 145
    11-13-2014, 12:18 PM Go to last post
  15. 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: 218
    11-12-2014, 08:49 AM Go to last post
  16. 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: 218
    11-11-2014, 10:55 PM Go to last post
  17. 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: 245
    11-11-2014, 04:58 PM Go to last post
  18. 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: 162
    11-11-2014, 10:10 AM Go to last post
  19. 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: 530
    11-10-2014, 08:28 PM Go to last post
  20. 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: 451
    11-10-2014, 08:24 PM Go to last post
  21. 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: 573
    11-09-2014, 05:50 AM Go to last post
  22. 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: 220
    11-08-2014, 09:55 PM Go to last post
  23. 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: 279
    11-07-2014, 01:35 PM Go to last post
  24. 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: 269
    11-06-2014, 05:44 AM Go to last post
  25. 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: 290
    11-05-2014, 08:11 PM Go to last post
  26. [Multi-Multipanelplots] Plot function overwrites par(mfrow)

    Hi I have a function which creates a multipanel figure to show differences between groups (ldahist, to be specific; code below). I would like to...

    Started by tateblack‎, 11-04-2014 10:29 AM
    ldahist, multipanel plot
    • Replies: 3
    • Views: 353
    11-05-2014, 09:15 AM Go to last post
  27. Confidence intervals with the MethComp package

    Hi Can anyone tell me how I set the CI to +/-1,96 using the following command: BA.plot(elements, wh.comp = c("LF","PF"), axlim = range(1,200),...

    Started by cast‎, 11-04-2014 04:37 PM
    • Replies: 0
    • Views: 271
    11-04-2014, 04:37 PM Go to last post
  28. Embedded Nulls when importing CSV into R

    Hey there. I try to import a csv file generated with the phonetics software Praat into R. When I first did this, there were no problems. Now...

    Started by sibert‎, 04-02-2014 08:21 AM
    • Replies: 5
    • Views: 5,737
    11-01-2014, 07:24 PM Go to last post
  29. Add Regular Expressions RSQLite

    So I want to add regular expressions to sqlite for queries via R. SQLite does not come with regular expressions but has keywords assigned and thus...

    Started by Lazar‎, 10-29-2014 04:15 PM
    regular expression, sql db, sqlite
    • Replies: 4
    • Views: 502
    10-31-2014, 03:12 AM Go to last post
  30. problem using ICC for inter-raters reliability

    Dear R experts and users, I have a list of 2000 words and have two groups of participants to rate the concreteness on half of the words in the...

    Started by Veda‎, 10-30-2014 04:53 AM
    • Replies: 0
    • Views: 336
    10-30-2014, 04:53 AM Go to last post
  31. Time Series Breakout Detection with R

    Hi I am time series and I would like to do automated breakout detection on it. I have discovered techniques like MACD which are helpful in...

    Started by piyushkumar‎, 06-18-2013 02:32 PM
    breakout detection, time series
    • Replies: 1
    • Views: 786
    10-29-2014, 08:04 AM Go to last post
  32. Logistic Regression using optim() give "L-BFGS-B" error, please help

    Dear R Users/Experts, I am using a function called logitreg() originally described in MASS (the book 4th Ed.) by Venebles & Ripley, p445. I used...

    Started by ashokkrish‎, 09-29-2008 02:24 PM
    code, logistic
    • Replies: 2
    • Views: 3,105
    10-29-2014, 02:33 AM Go to last post
  33. 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 04:58 AM
    missing values, pca, principal components
    • Replies: 9
    • Views: 672
    10-28-2014, 03:25 AM Go to last post
  34. To get a date of file in c:\

    Suppose there is a file with name a.csv. If you get the contents of the a.txt, we use a <- read.csv(file="c:\\a.csv", header=FALSE) ...

    Started by jk90029‎, 10-24-2014 02:00 PM
    • Replies: 1
    • Views: 368
    10-24-2014, 04:38 PM Go to last post
  35. function plotFit and x-axis with non-linear regression

    Hello everyone, I use R to do non-linear regression on data which follow a cosinus rule. I measure intensity of light (Raman intensity=V2) as...

    Started by Caps59‎, 10-23-2014 11:33 AM
    • Replies: 3
    • Views: 479
    10-24-2014, 08:28 AM Go to last post
  36. PCA & predict

    Hey, I've started my first R project a few days ago. Currently I'm wondering about some results. Hopefully someone can give me feedback wether the...

    Started by rstarter‎, 10-22-2014 07:20 PM
    • Replies: 0
    • Views: 376
    10-22-2014, 07:20 PM Go to last post
  37. Bullet Graph: help in figuring out how to build it

    Hi All, I would like to write a script to let R build a Bullet Graph (see attached pic). For given samples, the graph charts the means along with...

    Started by gianmarco‎, 10-17-2012 06:11 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 3,415
    10-22-2014, 05:26 PM Go to last post
  38. function for life tables (survival analysis)!?

    Dear Guys! I have a question regarding a statistical method using R: Life Tables. I know this function in SPSS. I have run it with my data. I also...

    Started by Matteo0‎, 10-21-2014 10:58 AM
    • Replies: 2
    • Views: 332
    10-21-2014, 03:45 PM Go to last post
  39. Read Date and Time using R

    I want to create a time series plot of each sensor number (SENSOR_NUM column in the attached file) with values (VALUE column in the attached file) in...

    Started by rskgautam‎, 10-20-2014 07:27 PM
    • Replies: 1
    • Views: 315
    10-20-2014, 08:00 PM Go to last post
  40. 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, 09-17-2014 04:02 PM
    • Replies: 9
    • Views: 646
    10-19-2014, 09:40 PM Go to last post
  41. R graph irregular time interval on x axis

    Hi, I'm trying to plot an irregular time interval. I'm attaching the plot i'm dealing with. I want to keep some space on the x-axis between year...

    Started by Machteld VDC‎, 10-17-2014 03:56 AM
    • Replies: 2
    • Views: 334
    10-19-2014, 10:56 AM Go to last post
  42. Reading csv file controlling variable as character or numeric

    Hi This is my first post. Apologies, if I am not following any rules I am new to R have prior experience into SAS only. I have been trying to...

    Started by bnarang‎, 10-18-2014 11:40 PM
    read csv
    • Replies: 2
    • Views: 264
    10-19-2014, 02:03 AM Go to last post
  43. how to remove a row in the data.frame which contain a empty element

    I have a data.frame with many empty element, and I want to remove the row with a empty element. Is there a convient way to do this like the command...

    Started by guozihuaa‎, 10-14-2014 08:04 AM
    data.frame, remove, row
    • Replies: 4
    • Views: 346
    10-17-2014, 09:49 AM Go to last post
  44. dbConnect function not found

    I have r-studio server running on a debian machine with MySQL. I installed the RMySQL package and I'm trying to establish a connection to my...

    Started by corey.short‎, 10-15-2014 07:02 PM
    • Replies: 1
    • Views: 335
    10-15-2014, 07:04 PM Go to last post
  45. LSmeans

    Hi, Sorry for the French! Let's take a second start ^^ I wish to analyze an unbalanced data set with 3 variables Tleaf, Tair, and orientation...

    Started by CupOfAppleTea‎, 10-14-2014 03:49 AM
    • Replies: 3
    • Views: 363
    10-15-2014, 05:25 PM Go to last post
  46. Question deriving the upper confidence interval limit in robust linear regression using MASS

    Since my data to some extent violates the linear regression assumptions I decided to also test the model using robust estimation limiting the...

    Started by CJW‎, 10-15-2014 01:50 AM
    confidence interval, package mass, robust linear regression
    • Replies: 0
    • Views: 421
    10-15-2014, 01:50 AM Go to last post
  47. Brunner-Munzel test troubleshooting (NaN in the output)

    I am trying to run the BM-test on two samples with heterogenous variances: A<-c(460,490,460,420,1450,1330,1130,1190,940,640)...

    Started by Igor K‎, 10-14-2014 05:09 AM
    • Replies: 2
    • Views: 401
    10-14-2014, 10:49 AM Go to last post
  48. setting covariates in glmer (fixed factors vs covariates)

    Hi everybody, i am a complete beginner in R, so please forgive me if I ask a stupid question. I ran an experiment on the effect of slowed speech...

    Started by Gela69‎, 10-14-2014 08:06 AM
    • Replies: 0
    • Views: 285
    10-14-2014, 08:06 AM Go to last post
  49. Commas in a vector not accepted

    I seek for advice as to how to overcome a following bug. R3.1.1 (windows) has trouble with accepting commas when I try to enter a vector...

    Started by Igor K‎, 10-13-2014 10:07 AM
    commas, vector entry
    • Replies: 2
    • Views: 379
    10-14-2014, 02:01 AM Go to last post
  50. Correctly running 2 stage cluster sampling in R w pps in psu(possibly w mstage pkg)

    Correctly running 2 stage cluster sampling in R w pps in psu, a different selection variable in each stage (if possibly with mstage sampling...

    Started by zscott1‎, 10-13-2014 01:07 PM
    multistage sampling, pps, pps sampling, r mstage sampling
    • Replies: 0
    • Views: 309
    10-13-2014, 01:07 PM Go to last post
  51. I need help in this problem please

    Regarding to Simulation

    Started by nmsm‎, 10-10-2014 02:03 AM
    • Replies: 2
    • Views: 411
    10-10-2014, 04:37 PM Go to last post
  52. Time-Series with UKgas

    Hello, i have a problem with the seasonal component. y <- UKgas p <- 4 if(!p%%2==1) { x <- filter(y,rep(1/p,p)) } else { x <-...

    Started by capri31‎, 10-09-2014 01:15 PM
    filter, seasonal components, time series
    • Replies: 0
    • Views: 262
    10-09-2014, 01:15 PM Go to last post
  53. Merging multiple csv files in many directory?

    Dear- We know that R/RStudio is excellent to transport (receive) csv file using read.csv(file="c:\\a.csv". header=FALSE) ********* Now...

    Started by jk90029‎, 10-08-2014 01:33 AM
    • Replies: 6
    • Views: 413
    10-09-2014, 09:37 AM Go to last post
  54. Calling Python from R

    So I am trying to call python from R so I can use beautiful soup. I have tried both >system("python myfile.py") and >library(rPython)...

    Started by Lazar‎, 10-08-2014 10:36 PM
    python, rpython
    • Replies: 3
    • Views: 333
    10-09-2014, 05:27 AM Go to last post
  55. Pre-Treatment Matching Method to Determine Who to Treat -> MatchIt?

    Dear members, I am looking for a method to find out how to build two groups out of a total of participants which should be as similiar as possible...

    Started by Niklas‎, 10-08-2014 05:01 AM
    • Replies: 5
    • Views: 395
    10-09-2014, 04:28 AM Go to last post
  56. Generate latex tables in nls.lm

    Hi everybody, I am trying to generate the latex code for tables with xtable function , but I got this error: xtable(summary(nls.out)) Error in...

    Started by sanmath‎, 10-08-2014 05:05 PM
    methods_in_r, nls.lm, xtable
    • Replies: 1
    • Views: 279
    10-08-2014, 06:04 PM Go to last post
  57. Drop1() and Summary() on lm object

    I need to analyse unbalanced data through linear regression: modJuin=lm(TleafMax~TairMax*orientation, na.action="na.exclude", data=aJuin) ...

    Started by CupOfAppleTea‎, 10-08-2014 09:14 AM
    • Replies: 1
    • Views: 311
    10-08-2014, 01:29 PM Go to last post
  58. Unhappy how to creat a data.frame with Duplicate column names

    I want to creat a data frame with the Duplicate column names, and it also contain rownams which are not Duplicate. The following is my code. X <-...

    Started by guozihuaa‎, 10-08-2014 10:52 AM
    colname, dataframe, duplicates, rownames
    • Replies: 3
    • Views: 266
    10-08-2014, 11:35 AM Go to last post
  59. Dredge in R

    Hi everyone, My knowledge in R statistical software is poor. Could eventually someone help me to understand which way I do dredge in R? How do I...

    Started by esocidae‎, 10-08-2014 08:16 AM
    aic, dredge, r software
    • Replies: 0
    • Views: 207
    10-08-2014, 08:16 AM Go to last post
  60. Power test - which one is suitable for me

    I have a group of 200 female individuals that are either infected or uninfected. The infected proportion is known at generation (G) 0 when I mixed...

    Started by jkaxford‎, 09-24-2014 02:51 AM
    binomial distribution, power, proportion
    • Replies: 1
    • Views: 261
    10-07-2014, 11:22 PM Go to last post

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