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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: 271,530
    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: 112,419
    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: 13,562
    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: 117,400
    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: 257,196
    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: 124,806
    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: 26,230
    10-17-2012, 07:20 PM Go to last post
  1. Can I customize what box-whiskers plots show?

    Hi there, I'm kind of new to R and am trying to recreate a figure I did with a program I no longer have a license for. What I need, is a...

    Started by omolnar‎, 07-02-2015 11:10 AM
    • Replies: 2
    • Views: 1,601
    07-03-2015, 04:39 AM Go to last post
  2. Trimmed Spearman_karber Method using r for dose response analysis - Help needed!!!

    Please could anyone show me how to go about using r to LC50 and Confidence intervals with Trimmed Spearman-Karber method? I have had several go at...

    Started by Kingmax‎, 06-27-2015 03:51 AM
    confidence intervals, drc, lc50 ratio test
    • Replies: 7
    • Views: 2,985
    07-03-2015, 04:13 AM Go to last post
  3. Comparing coefficents in different moodels

    Hi All, I want to compare the effect of distance to the nearest university versus distance to the nearest Ivy league university on college...

    Started by Lazar‎, 06-30-2015 06:58 PM
    • Replies: 3
    • Views: 1,349
    07-03-2015, 01:25 AM Go to last post
  4. I need hand holding to learn how to run GLM in R.

    I have RStudio and RRO installed but run into problems not addressed in help videos I've tried to follow. Loading my 698-case set with 13 variables...

    Started by nanosteve‎, 07-02-2015 03:19 PM
    help run glm rstudio asap
    • Replies: 3
    • Views: 1,966
    07-02-2015, 07:48 PM Go to last post
  5. Categorization using R

    Hello , I am relatively new at using R. I have a dataset of around 5000 datapoints. My goal is to predict a category using the comments...

    Started by ankangaur‎, 07-02-2015 10:51 AM
    • Replies: 3
    • Views: 1,006
    07-02-2015, 01:29 PM Go to last post
  6. Question How plot a time series?

    Hello, I am new to R and I am trying to do a very simple thing, but I need your help. I have a time series of temperature from 1950 until 2013,...

    Started by paopao87‎, 06-30-2015 02:44 PM
    seasonality series plot r
    • Replies: 1
    • Views: 1,380
    06-30-2015, 06:31 PM Go to last post
  7. How to calculate Tilted bootstrap confidence intervals using the boot R package?

    I'm running a simulation where I'm interested in comparing the accuracy of tilted bootstrap confidence intervals versus regular percentile confidence...

    Started by BearJewJ‎, 06-30-2015 03:29 PM
    • Replies: 0
    • Views: 1,208
    06-30-2015, 03:29 PM Go to last post
  8. Propagate error with prediction interval

    I have a linear dataset with known values of X & Y in R. I treat the dataset as a linear model. I have a data point with a known value of X and an...

    Started by PropagationHelp‎, 06-28-2015 01:32 PM
    error propagation, linear regression, prediction-intervals, r package
    • Replies: 0
    • Views: 956
    06-28-2015, 01:32 PM Go to last post
  9. Tvecm

    I am trying to estimate a threshold error correction model that uses an exogenous variable as the threshold variable. Does anyone know how to do...

    Started by seeker of help‎, 06-24-2015 11:11 PM
    regime switching ecm, tvecm
    • Replies: 0
    • Views: 1,398
    06-24-2015, 11:11 PM Go to last post
  10. How do propagate error associated with input variable

    Hello! I have a linear X,Y dataset in R. It is being treated as a linear model . What I want to do is input a specific value of X along with...

    Started by PropagationHelp‎, 06-24-2015 01:38 PM
    instrument error., linear regression, prediction interval, propagation of error
    • Replies: 0
    • Views: 1,603
    06-24-2015, 01:38 PM Go to last post
  11. How to plot a LOVE plot

    Hi I am estimating propensity score and I would like to check my covariance balance by a LOVE plot (I do know, you can check it in other ways but I...

    Started by CatrinWessman‎, 06-24-2015 03:56 AM
    love plot
    • Replies: 1
    • Views: 6,393
    06-24-2015, 05:02 AM Go to last post
  12. geom_smooth

    hey! I have a problem with geom_smooth function. The default method for n>1000 obs. is gam. For fun, I tried other methods, including the default...

    Started by purifyz‎, 06-23-2015 02:48 PM
    • Replies: 1
    • Views: 2,302
    06-23-2015, 06:48 PM Go to last post
  13. Minimum mutual information algorithm

    Hello all, I'm just wondering if an R package or script is floating around for finding the first minimum mutual information of self-paired...

    Started by dcmetz‎, 06-23-2015 12:11 PM
    attractors, chaos, dynamical systems, information
    • Replies: 1
    • Views: 1,473
    06-23-2015, 12:40 PM Go to last post
  14. Graph labelling

    I have attached a file. In the plot. I want to add a title to the whole 4 plot. Not one for each but 1 for all on the top. Also I want to label them...

    Started by Mr Good News‎, 06-21-2015 10:10 PM
    • Replies: 2
    • Views: 1,211
    06-22-2015, 08:40 PM Go to last post
  15. Bootstrap

    I implemented an EM algorithm to estimate means and variances, but now I need to implement a bootstrap procedure to estimate the variance of these...

    Started by askazy‎, 06-20-2015 09:36 PM
    • Replies: 3
    • Views: 1,814
    06-21-2015, 09:13 PM Go to last post
  16. The Kolmogorov-Smirnov test (ks.test)

    Hi all and thanks for reading. My question regards the ks.test function in R. I seem to be getting some strange results in the output and after...

    Started by cruzeconomics‎, 06-21-2015 01:21 PM
    • Replies: 0
    • Views: 1,389
    06-21-2015, 01:21 PM Go to last post
  17. problem with plot a fit line in nls

    Hi all, I am having problems for add a line to scatter plot, my data fit to a exponential model, I used nls to get coeficients fit <-...

    Started by Rodrigo Badilla Cabrera‎, 06-19-2015 12:10 PM
    • Replies: 0
    • Views: 915
    06-19-2015, 12:10 PM Go to last post
  18. Question Please help: Reshaping a list of named character vectors to data frame

    Ok, so imagine I create the following: > list1 <- c("data-element1", "data-element2", "data-element3") > list2 <- c("data-element4",...

    Started by daw‎, 06-17-2015 01:46 PM
    • Replies: 2
    • Views: 989
    06-18-2015, 08:13 AM Go to last post
  19. problem in extracting z value from 'coin' package's wilcox_test()

    Hello, I was wondering if is it possible to extract the z value from the results of the Mann-Whitney test as returned by the 'coin' package's...

    Started by gianmarco‎, 06-18-2015 02:31 AM
    • Replies: 1
    • Views: 1,370
    06-18-2015, 02:38 AM Go to last post
  20. R reorder: Error in length(H)

    I tried to run the command: ii <-factor(c(1,2,3)) iii <- reorder(ii) However, I get the error statement: Error in length(H) : 'H' is...

    Started by nmch‎, 06-17-2015 03:55 PM
    • Replies: 4
    • Views: 2,209
    06-17-2015, 06:50 PM Go to last post
  21. Confirmatory factor analysis error message

    Hi, I'm new to R and I'm attempting to run a CFA model using the lavaan package. So far I have imported my data from SPSS and specified my model...

    Started by Fran.c‎, 06-17-2015 05:56 AM
    cfa, error, error message, lavaan
    • Replies: 1
    • Views: 2,984
    06-17-2015, 06:10 AM Go to last post
  22. 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
  23. R: Weighted nls fit of multiple datasets with nested paramaters

    I have a number of datasets that I'd like to fit with a model of the form a*(x+b)^c where b, c are common to each dataset with only the...

    Started by prsofinterest‎, 06-15-2015 01:42 PM
    • Replies: 0
    • Views: 1,600
    06-15-2015, 01:42 PM Go to last post
  24. Exclamation Error in ginv(A) : 'X' must be a numeric or complex matrix

    Dear all, this is my first post here! :wave: I encountered a problem that has been bugging me for some hours, and I still haven't managed to come...

    Started by BillyPilgrim‎, 06-14-2015 03:19 AM
    • Replies: 1
    • Views: 3,196
    06-14-2015, 04:52 AM Go to last post
  25. column spanning in Markdown

    Hi all, I have a table as follows: tmp <- structure(list(mean = c(2.2799823633157, 1.75434618291761, 1.96957671957672, 1.35482804232804,...

    Started by Lazar‎, 06-11-2015 06:12 PM
    • Replies: 5
    • Views: 1,517
    06-14-2015, 03:58 AM Go to last post
  26. Interpreting Odds Ratios For Logistic Regression

    Hello, I just developed a logistic regression model predicting customer churn (i.e how likely is a customer to leave us in the future?) To...

    Started by pandyav‎, 06-11-2015 01:27 PM
    • Replies: 1
    • Views: 1,045
    06-11-2015, 03:24 PM Go to last post
  27. Getting Data From SharePoint

    I'm trying, and so far failing, to extract data from a very large SharePoint list. I have a URL for getting XML from sharepoint: ...

    Started by daw‎, 06-11-2015 01:19 PM
    • Replies: 0
    • Views: 1,281
    06-11-2015, 01:19 PM Go to last post
  28. One-mode network (Data preparation)

    Hello, I'm looking for a solution to perform network analysis among my data set. My database is shaped like this : Table 1 : ...

    Started by Bryoman‎, 06-08-2015 03:16 AM
    • Replies: 4
    • Views: 1,739
    06-11-2015, 02:34 AM Go to last post
  29. 'unexpected result from lpSolveAPI for primal test' error for Logistic Regression

    Hello, I am trying build a logistic regression model in R and I am also using 'safeBinaryRegression' package. When I enter the my model code and...

    Started by pandyav‎, 06-10-2015 04:15 PM
    • Replies: 1
    • Views: 2,449
    06-10-2015, 09:52 PM Go to last post
  30. Learning R.

    I know we have a monstrous thread on this, but if you had to pick one source and had essentially zero knowledge of R, what would the best source to...

    Started by noetsi‎, 06-04-2015 04:44 PM
    • Replies: 6
    • Views: 2,090
    06-10-2015, 01:19 PM Go to last post
  31. Legal Code License for a package

    Hello, I was wondering to know more about 'Legal Code License' for R packages. In particular, I was asked under what LCL a package of mine is. Note...

    Started by gianmarco‎, 06-10-2015 11:53 AM
    • Replies: 1
    • Views: 1,335
    06-10-2015, 01:11 PM Go to last post
  32. Extreme Value Analysis - how to use the R package extRemes

    Hello, I am completely new to R and I desire to analyse two different time series of temperature and precipitation with the R package extRemes. ...

    Started by paopao87‎, 06-10-2015 03:01 AM
    extremes return level
    • Replies: 0
    • Views: 879
    06-10-2015, 03:01 AM Go to last post
  33. date/time data import from excel

    The date/time data imported using readWorksheetFromFile function from XLConnect package is not correct. For example: In my excel.xlsx, I got...

    Started by VivianLee‎, 06-03-2015 02:36 AM
    • Replies: 8
    • Views: 2,429
    06-09-2015, 02:18 AM Go to last post
  34. hist on time

    I'm a total newbee to R and wonder how can I use hist with a vector consisting of marathon finishing times (e.g 3:03:03 ...) I got the message...

    Started by Runner42195‎, 06-07-2015 12:02 PM
    • Replies: 13
    • Views: 3,334
    06-08-2015, 01:29 PM Go to last post
  35. Which cluster analysis methods to use to analyze purchase behavior with time?

    Hello everyone, I quite new to cluster analysis, but read through a fair amount of material, still I'm puzzled with the following task. ...

    Started by sinandrei‎, 06-05-2015 02:50 PM
    cluster, cluster analysis, latent class analysis lca, segmentation
    • Replies: 2
    • Views: 1,925
    06-08-2015, 12:25 PM Go to last post
  36. GARCH modelling and forecasting

    Hi, I have a few questions regarding GARCH modelling and forecasting and it would be great if someone could help me. I am modelling oil spot...

    Started by pd811‎, 06-02-2015 07:18 AM
    forecasting, garch, modelling
    • Replies: 1
    • Views: 672
    06-07-2015, 05:22 PM Go to last post
  37. reshaping dataframe to matrix

    Hello, I am admittedly very dumb when it comes at reshaping data in R. So, I would appreciate to have some suggestion on what follows. I got the...

    Started by gianmarco‎, 06-04-2015 02:17 AM
    • Replies: 7
    • Views: 1,590
    06-04-2015, 11:03 AM Go to last post
  38. Problem with category names in PCAmix

    Hello there, first, I'm really new to R and mainly need to use it for a multiple correspondence analysis with rotation. I have converted my...

    Started by gnr1‎, 05-06-2015 04:45 AM
    • Replies: 1
    • Views: 1,657
    06-04-2015, 05:26 AM Go to last post
  39. compare areas under ROC curve of logit and neural networks

    Hello, everyone, I am currently estimating logit models using R and neural networks using SPSS. I need to compare the areas under ROC curve of logit...

    Started by t.wang21@yahoo.com.au‎, 06-04-2015 01:04 AM
    • Replies: 0
    • Views: 817
    06-04-2015, 01:04 AM Go to last post
  40. Bootstrapping wald test scores following SUR with panel data

    Hey everyone. Can anyone help me implement these steps into R code? Using this system: I found this piece of R code which might be...

    Started by Daan Bovenberg‎, 06-03-2015 02:29 PM
    bootstrapping, panel data, wald test
    • Replies: 0
    • Views: 1,162
    06-03-2015, 02:29 PM Go to last post
  41. K-means clustering

    Is there any algorithm to find the value of 'k' in k-means clustering for a big data set?

    Started by Chirantha89‎, 06-03-2015 03:41 AM
    clustering, r programming
    • Replies: 10
    • Views: 1,470
    06-03-2015, 12:58 PM Go to last post
  42. K-Means Clustering - Selecting K with Cross Validation of prediction SSE

    I'll try to fill this out more later, but let us just assume we're using the Iris data set. It's not hard to do some clustering x <- iris...

    Started by bryangoodrich‎, 03-05-2015 08:11 PM
    • Replies: 9
    • Views: 9,015
    06-03-2015, 11:27 AM Go to last post
  43. PopGenome input file

    Hi, I want to do some population genetic analysis using PopGenome, but my data files(SNPs) are in plink format. Please tell me how to obtain input...

    Started by meraj‎, 06-03-2015 12:59 AM
    • Replies: 0
    • Views: 1,453
    06-03-2015, 12:59 AM Go to last post
  44. how to split and cut (big data)

    Hello, I have table: 3 cols and over 300k rows. Col1 - ID (numeric id, ex: 123456) Col2 - Numb (numeric from 1 to 25, ex: 1) Col3 - Yes/no (0...

    Started by natus vincere‎, 06-01-2015 09:38 AM
    cut, dataframe, split, table, table merge
    • Replies: 3
    • Views: 1,348
    06-02-2015, 11:19 AM Go to last post
  45. subset

    V. basic Q, but I have a csv file loaded with 168 observations. I'd like to do similar analyses on observations 1-140 and 141-168. I assume there's a...

    Started by tays01s‎, 06-02-2015 09:05 AM
    • Replies: 0
    • Views: 1,189
    06-02-2015, 09:05 AM Go to last post
  46. Question Bootstrapping test statistics with panel data and SUR

    As a newbie to bootstrapping, I'm having some trouble with developing with critical wald test scores for every observation in my panel dataset. I'm...

    Started by Daan Bovenberg‎, 06-02-2015 05:58 AM
    bootstrapping, panel data, test statistic, wald test
    • Replies: 0
    • Views: 1,581
    06-02-2015, 05:58 AM Go to last post
  47. mlogit.data - Error in `row.names

    Hello everyone, I am doing a discrete choice analysis in my master thesis, and have run into trouble with the mlogit-package when setting the...

    Started by hbrandi‎, 05-26-2015 06:16 AM
    • Replies: 1
    • Views: 2,169
    06-02-2015, 05:32 AM Go to last post
  48. Wallraff Test / Circular Statistics

    Hello! Is anyone familiar with using the wallraff test from the circular.package? Depending on which source I use (circular.pdf or the circular...

    Started by DIversity‎, 06-02-2015 04:17 AM
    • Replies: 0
    • Views: 1,101
    06-02-2015, 04:17 AM Go to last post
  49. Post finding the best fit and removing outliers with MARS regression

    I using the regression method called `MARS`, in `R` is it called `earth` and is located in the package `earth`, in order to find the best regression...

    Started by paul15071992‎, 06-01-2015 08:31 AM
    fit, multivariate regression, outlier detection, regression
    • Replies: 2
    • Views: 1,587
    06-01-2015, 10:47 AM Go to last post
  50. Implementing non-parametric version of 2x2 Repeated Measures ANOVA in R

    Hi, I have a 2x2 repeated measures design (i.e. 1 group of participants provide data for all 4 conditions in a fully factorial counterbalanced design...

    Started by RobH‎, 12-07-2011 06:34 AM
    factorial anova, non-parametric anova, r software, repeated-measures, two-way
    • Replies: 10
    • Views: 10,155
    06-01-2015, 05:26 AM Go to last post
  51. Error when using normality tests (Tapply)

    Hello, Recently I have been using R for an assessment item for a university project. The project entailed the students to gather data and...

    Started by Elderberrian‎, 05-30-2015 07:23 AM
    • Replies: 2
    • Views: 2,786
    05-30-2015, 12:48 PM Go to last post
  52. Storing in pdf format, together with seeing the graph, in RStudio window

    Dear- We all know how to use pdf() to store a graph. Now, in order to save time in clicking, is it possible to 1) draw a graph in pdf format...

    Started by jk90029‎, 05-30-2015 04:44 AM
    • Replies: 1
    • Views: 1,463
    05-30-2015, 10:50 AM Go to last post
  53. 'corrplot' error: color limits should cover matrix

    Hello! I have been unsuccessful in wrapping my head around the error message I got from the 'corrplot' function of the 'corrplot' package. ...

    Started by gianmarco‎, 05-30-2015 03:11 AM
    • Replies: 6
    • Views: 4,034
    05-30-2015, 09:51 AM Go to last post
  54. Data mining Facebook Using R

    Hi everyone, today I will post my tutorial to show you how to create those beautiful charts from what you get from facebook API. Here is my...

    Started by bobbymistery‎, 05-30-2015 07:27 AM
    • Replies: 0
    • Views: 2,076
    05-30-2015, 07:27 AM Go to last post
  55. Calculate prediction values for linear curve estimation for next 5 intervals

    Hi, I have another query : I want to calculate prediction values for linear curve estimation for next 5 intervals. Example : Suppose i have a...

    Started by sajalgoel‎, 05-28-2015 08:07 AM
    • Replies: 2
    • Views: 1,402
    05-29-2015, 12:37 AM Go to last post
  56. import excel colour coded cells including its colour

    Hi, I am totally new to R. I wondering if R can import the cell background colour of the excel file? Trying to create a piece of code to extract...

    Started by VivianLee‎, 05-28-2015 08:53 AM
    • Replies: 4
    • Views: 2,006
    05-28-2015, 08:23 PM Go to last post
  57. logistic regression R and Stata grouping variable

    Hello, I mostly use Stata 13 for my regression analysis. I want to conduct a logistic regression on a proportion/number of success. Because I...

    Started by Bruno_L‎, 05-26-2015 06:27 AM
    logistic regression stata
    • Replies: 1
    • Views: 2,376
    05-28-2015, 04:46 PM Go to last post
  58. How to change the parameters of the binomial distribution used in a binomial glmer?

    I wish to assess how being part of a majority helps in emerging as a leader of an animal group. Say I have 10 cases in which I assessed whether...

    Started by Kris_Anathema‎, 05-28-2015 02:30 PM
    glmer binomial
    • Replies: 1
    • Views: 2,034
    05-28-2015, 04:40 PM Go to last post
  59. Getting a cdf equal to 1 from a variable kernel density estimation

    When I integrate the variable kernel density estimation of a sample from -inf to inf, I should get 1. But it is not what I get with my code below. I...

    Started by Lio67‎, 05-27-2015 07:51 AM
    adaptive kernel density, cdf
    • Replies: 0
    • Views: 1,289
    05-27-2015, 07:51 AM Go to last post
  60. Calculate Growth Rate

    I am not a math major and I have not done development in R before so please take this into account when reading my question. I currently having a...

    Started by jkruer01‎, 05-27-2015 07:36 AM
    growth curve, growth rate
    • Replies: 0
    • Views: 2,157
    05-27-2015, 07:36 AM Go to last post

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