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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
    25 Pages
    1 2 3 ... 25
    • Replies: 360
    • Views: 133,641
    10-15-2016, 01:15 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 06:08 AM
    7 Pages
    1 2 3 ... 7
    • Replies: 97
    • Views: 53,205
    10-12-2016, 12:42 AM 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 10:41 AM
    8 Pages
    1 2 3 ... 8
    • Replies: 110
    • Views: 51,253
    10-05-2016, 08:33 AM Go to last post
  4. 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
    20 Pages
    1 2 3 ... 20
    • Replies: 286
    • Views: 119,756
    09-13-2016, 04:35 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: 100
    • Views: 64,853
    04-14-2016, 02:02 PM Go to last post
  6. 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: 1
    • Views: 3,230
    02-02-2016, 05:41 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 08:20 PM
    • Replies: 0
    • Views: 13,821
    10-17-2012, 08:20 PM Go to last post
  1. Loops and Conditions with a Data Frame

    Hello all, I am moving from SAS to R, and getting a few difficulties. I have a data frame called DF. It contains 3 variables (see attached...

    Started by Yankel‎, 12-03-2016 04:40 AM
    • Replies: 6
    • Views: 283
    Today, 02:51 AM Go to last post
  2. Vungle Project

    I am working on my final project for my Data Analysis class, where I have to give a presentation. I have been given a dataset, called Vungle. Here it...

    Started by DV Man‎, 12-03-2016 02:11 PM
    • Replies: 1
    • Views: 164
    Yesterday, 04:08 PM Go to last post
  3. Help! How do I fit this multinomial logistic regression model?

    Hello! I wanted to ask for help with an investigation that I am carrying out. I am trying to find if ethnicity is the most determinant factor of...

    Started by marimo22‎, 12-03-2016 09:08 AM
    • Replies: 0
    • Views: 111
    12-03-2016, 09:08 AM Go to last post
  4. R equivalent code from Stata code on regression.

    Hi, I am trying to run these stata codes into R. I have never before used stata before, so I am confused on how to transform it in R. I was...

    Started by sandyzman‎, 12-02-2016 11:02 PM
    • Replies: 0
    • Views: 69
    12-02-2016, 11:02 PM Go to last post
  5. R package (doSNOW)masking objects

    I am trying to do a simulation analysis. The code was running alright with small sample. For the full run, I ran into the following error at first. I...

    Started by thomashaosun‎, 12-02-2016 03:30 AM
    • Replies: 1
    • Views: 91
    12-02-2016, 07:37 AM Go to last post
  6. Mapping Shape files in R

    Hello, I would like to know if there's a way to convert Shape_Area and Shape_Length data to geo lat/long coordinates because I have a way to map...

    Started by iknowu99‎, 11-29-2016 11:33 AM
    • Replies: 0
    • Views: 131
    11-29-2016, 11:33 AM Go to last post
  7. AR(1)-ARCH(1) modeling

    I don't really know if this is the right place to ask for this, but maybe someone could guide me on the process of fitting AR(1)-GARCH(1) model in R....

    Started by lovetim‎, 11-28-2016 11:22 PM
    • Replies: 0
    • Views: 122
    11-28-2016, 11:22 PM Go to last post
  8. How to generalize these basic steps with vectorization techniques?

    df <- data.frame( amount=rnorm(100,1000,50), class=sample(1:10,10), year=rep(2013:2016, 25) ); head(df) #trying to generalize...

    Started by databuilder‎, 11-20-2016 11:16 PM
    • Replies: 6
    • Views: 435
    11-28-2016, 10:17 AM Go to last post
  9. How to use chi-square test correspondence between features and response in R?

    There is a set of tumors,each one includes five features, which relate to one gene type result. Tumor Feature 1 ... Feature 5 Gene type 1 Type 1...

    Started by l35633‎, 11-27-2016 03:13 PM
    • Replies: 0
    • Views: 105
    11-27-2016, 03:13 PM Go to last post
  10. What is an AIC in R, and what is a "good" one?

    I am doing the Titanic Kaggle problem (has anyone done this?) and I have this output from a logistic regression model: Call: glm(formula =...

    Started by DV Man‎, 11-22-2016 01:42 PM
    • Replies: 6
    • Views: 237
    11-23-2016, 02:30 AM Go to last post
  11. Question How can I insert value in a phrase

    Hello everyone! I started learning R since last September in my grad program, and also teaching myself functions that I do not learn in the...

    Started by shin1990‎, 11-20-2016 02:10 PM
    • Replies: 2
    • Views: 167
    11-20-2016, 03:59 PM Go to last post
  12. Cox Snell residuals in R

    I'm trying to fit parametric survival models for a data that I have, and I don't know how to get the Cox Snell residuals in R. An example of...

    Started by askazy‎, 11-19-2016 07:45 AM
    • Replies: 0
    • Views: 130
    11-19-2016, 07:45 AM Go to last post
  13. PCA for Compositional Data using R

    Good evening! As the title suggest, I'm approaching to PCA for compositional Data. The dataset is about 5200 proteins for which is recorded a value...

    Started by Ferdinando Coppola‎, 11-16-2016 12:32 PM
    biplot, compositional data, pca
    • Replies: 2
    • Views: 318
    11-18-2016, 03:30 AM Go to last post
  14. Creating a boxplot with a data frame

    I have the following dataset: > dput(twins) structure(list(Foster = c(82L, 80L, 88L, 108L, 116L, 117L, 132L, 71L, 75L, 93L, 95L, 88L, 111L,...

    Started by DV Man‎, 11-14-2016 08:46 AM
    • Replies: 3
    • Views: 256
    11-16-2016, 08:26 AM Go to last post
  15. Guitarpackage in R

    Hi! I am fairly new to R, and have been trying to run R's Guitar package on my linux with not much success. No image is generated - I get an error...

    Started by blur‎, 11-16-2016 06:47 AM
    guitar package r
    • Replies: 1
    • Views: 119
    11-16-2016, 07:55 AM Go to last post
  16. Point size base plots

    So cex with scale points and defaults to 1 being 1px. Is there a way however to link the diameter of points to the y-axis. So lets say we have: ...

    Started by Lazar‎, 11-12-2016 04:56 PM
    • Replies: 5
    • Views: 287
    11-13-2016, 12:24 AM Go to last post
  17. Don't understand why it needs to be class factor

    I have the following piece of code which I am trying to run library(Rcmdr) library(RcmdrMisc) library(RcmdrPlugin.DoE) PB.DOE <- pb(nruns= 12...

    Started by anonake‎, 11-10-2016 02:10 PM
    • Replies: 0
    • Views: 232
    11-10-2016, 02:10 PM Go to last post
  18. Error: unexpected string in constant

    Hi All, apologies for the basic question but I'm a newbie in R and I can't seem to fix this one line of code. I'm inputting; awk '$1 ==...

    Started by Magpie101‎, 11-10-2016 05:58 AM
    • Replies: 1
    • Views: 170
    11-10-2016, 01:10 PM Go to last post
  19. Complex line graphic

    Hello everyone, :D I am trying to do a graph with the enclosed file. In ordinate I want to represent the mutation rate mu for the three types...

    Started by Bioinfo974‎, 11-06-2016 07:41 PM
    • Replies: 5
    • Views: 312
    11-09-2016, 03:26 AM Go to last post
  20. Online R coding tuition

    Hi guys, i'm new to R and have some biological data sets I need help coding with, is there anyone on here that is able to give online tuition in...

    Started by imbricata‎, 11-07-2016 05:28 AM
    • Replies: 1
    • Views: 187
    11-07-2016, 07:36 AM Go to last post
  21. Adding Text to Horizontal Line in GGPlot2

    So I made this barplot, and I have a horizontal line at the mean of the wholesale price of all cars. I would like to add text to this line to denote...

    Started by DV Man‎, 10-30-2016 09:24 PM
    • Replies: 12
    • Views: 409
    11-06-2016, 05:48 PM Go to last post
  22. Factorial ANOVA, How to do a imple effects analysis in R?

    I am running a factorial ANOVA in R. I want to find out the effect of gender and the semester the student is enrolled in on a standardized test. ...

    Started by ricardo.l‎, 11-06-2016 10:57 AM
    • Replies: 0
    • Views: 158
    11-06-2016, 10:57 AM Go to last post
  23. Help with Rstudio coding

    Hi guys I really need some help with the coding for a linear model with Gaussian error structure to assess whether a numerical variable is affected 2...

    Started by imbricata‎, 11-06-2016 10:31 AM
    • Replies: 0
    • Views: 128
    11-06-2016, 10:31 AM Go to last post
  24. What wrong with my code?

    I am running a DOE where i have generated a PB design. This ends up as a data table with my predictor variables and the experiments I need to run to...

    Started by anonake‎, 11-03-2016 09:06 AM
    calculated column, r code
    • Replies: 9
    • Views: 398
    11-05-2016, 05:56 PM Go to last post
  25. Presence/Absence Data - (Dis)similarity Analysis in R

    Hi everyone, I could not find a thread which matches my problem sufficiently. If I missed the right thread you are welcome to give me short hint....

    Started by anutinashell‎, 10-28-2016 09:20 AM
    • Replies: 4
    • Views: 289
    11-04-2016, 03:35 AM Go to last post
  26. MLE parameter estimation error in R for Exponential Distribution

    I am doing a statistical modeling and doing right and left censoring. I have difficulty to fit my data to exponential distribution as I am getting...

    Started by mohsenhs82‎, 11-03-2016 03:06 AM
    censoring, exponential distribution, fit distribution, fitdistplus
    • Replies: 0
    • Views: 148
    11-03-2016, 03:06 AM Go to last post
  27. replacing 4 or more characters 'j' in a string with the same number of characters 'y'

    Let's say I have a string a <- 'jjjaaaabbbjjjjcccccddjjjjjjjjeeejjffjjjjjjgg' I want to replace all instances of the character 'j' with an...

    Started by efoss‎, 11-01-2016 11:24 PM
    • Replies: 3
    • Views: 242
    11-02-2016, 01:40 AM Go to last post
  28. 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 05:21 PM
    • Replies: 6
    • Views: 788
    11-01-2016, 04:18 PM Go to last post
  29. How to combine multiple variables into one by name

    I have the following dataset: class = c("tbl_df", "tbl", "data.frame"), row.names = c(NA, -121690L), .Names = c("Model", "Make", "Color",...

    Started by DV Man‎, 10-30-2016 12:25 PM
    • Replies: 9
    • Views: 234
    10-30-2016, 03:02 PM Go to last post
  30. Creating simple GUI for R - Calling scripts from R-external Application

    Dear all, today i would like to get some directions for the following question. Main Target - create a simple GUI which allows non R-Users to...

    Started by tester1234‎, 10-23-2016 04:26 AM
    gui, java, simple
    • Replies: 6
    • Views: 414
    10-29-2016, 10:57 AM Go to last post
  31. R - Logistic regression. Coding to get all predictor variables for categorical vars

    I'll preface my question by stating that I am new to using R. I am trying to use logistic regression on my data. I typed glm(formula = purchase ~...

    Started by willcoop‎, 10-26-2016 01:20 PM
    logistic regression, r coding
    • Replies: 5
    • Views: 333
    10-27-2016, 08:14 AM Go to last post
  32. Exclamation SOS!!!!!!! Appraisal Ratio in R

    Please share with me! Thank you in advance!:)

    Started by Lisa92‎, 10-26-2016 11:20 AM
    appraisal ratio, finance, ratio
    • Replies: 0
    • Views: 174
    10-26-2016, 11:20 AM Go to last post
  33. Gaussian Copula

    I have two stocks, equally weighted, in my portfolio. The objective is to link both with two marginal t-student distributions linked with a Gaussian...

    Started by John Nogueira‎, 10-26-2016 06:17 AM
    • Replies: 0
    • Views: 149
    10-26-2016, 06:17 AM Go to last post
  34. can't install caret.

    Im 'trying to install the caret package, but am having trouble. I'm running it on a MAC I"m already using the most updated version of R Studio....

    Started by semidevil‎, 10-24-2016 09:51 PM
    • Replies: 8
    • Views: 334
    10-25-2016, 10:34 PM Go to last post
  35. Help with Conditional Statement

    Hi, Please assist. I would like to create a new collumn called Completion Status. if the value of the Post_Test_Score is blank i would like the...

    Started by Easy‎, 10-24-2016 03:57 AM
    • Replies: 1
    • Views: 247
    10-24-2016, 11:24 AM Go to last post
  36. Apply ARIMA model to a time series - fit the model to past observations

    I am trying to make a forecast starting from a time series with monthly observations. After creating the time series in R, I applied auto.arima()...

    Started by Mark_‎, 10-13-2016 09:35 AM
    • Replies: 4
    • Views: 314
    10-22-2016, 07:39 AM Go to last post
  37. Lightbulb Statistical analysis and playing around with incidence rates

    Dear TalkStats Members, I am a bloody noob to R (used SPSS till now) and decided to learn R now. My first quest would be following: I have...

    Started by AAWWR-Mike‎, 10-21-2016 04:57 AM
    disease, incidence rate, linear regression, predictive analysis, projection
    • Replies: 0
    • Views: 170
    10-21-2016, 04:57 AM Go to last post
  38. displaying annotations close to axes in scatterplots

    Dear All, as per title, I was wondering if you have ever come across any method to put annotations (I hope this is the right word) near the axes in...

    Started by gianmarco‎, 10-19-2016 02:05 PM
    • Replies: 2
    • Views: 203
    10-21-2016, 04:15 AM Go to last post
  39. Smile install RHadoop

    Hello, hello to everyone! I would like to ask you a question: I am installing RHadoop of Cloudera, but R does not make me install the packages I...

    Started by Claudia14‎, 10-21-2016 03:26 AM
    • Replies: 0
    • Views: 146
    10-21-2016, 03:26 AM Go to last post
  40. Reading in SAS files

    Hi All, I have a bunch of SAS data files I need to read into R that were created a long time ago. The bdat files work fine but I am having...

    Started by Lazar‎, 10-19-2016 07:27 PM
    • Replies: 8
    • Views: 406
    10-20-2016, 09:53 PM Go to last post
  41. changing the default color in a ggplot2 heat map-like plot

    I have a data frame called "test2" that has 3 columns: position, length and intensity. I want to make a plot with position on the x axis, length on...

    Started by efoss‎, 10-20-2016 11:54 AM
    • Replies: 3
    • Views: 220
    10-20-2016, 06:59 PM Go to last post
  42. problem with decision tree using rpart: "fit is not a tree, just a root"

    I'm doing very basic decision tree practice, but I"m having trouble getting my tree to output. I'm using the rpart function for this. It's an...

    Started by semidevil‎, 10-07-2016 04:11 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 926
    10-19-2016, 02:17 PM Go to last post
  43. Issue with the ISRL data sets

    Hello everyone, I recently started to read that book (An Introduction to Statistical Learning with Applications in R). Has anyone encountered...

    Started by LongHalloween‎, 10-19-2016 12:52 PM
    • Replies: 0
    • Views: 151
    10-19-2016, 12:52 PM Go to last post
  44. R geosphere package: unit of distance

    Hello dear forum members, I have the following question in relationship to R geosphere package: So, as per package description...

    Started by kiton‎, 10-18-2016 12:20 PM
    distance unit, geosphere
    • Replies: 2
    • Views: 188
    10-18-2016, 12:46 PM Go to last post
  45. Question regarding generating graphics using ggplot2

    I have two problems, but I'll start with the first one: (I have a picture of what the outcomes are supposed to look like, but sadly I cannot post...

    Started by DV Man‎, 10-17-2016 07:16 PM
    • Replies: 5
    • Views: 328
    10-18-2016, 09:52 AM Go to last post
  46. Root node has 3 options, but 2 branches?"

    Using the rpart package, I created a decision tree describing credit default, based on various characteristics. When I tree my data, credit...

    Started by semidevil‎, 10-14-2016 10:34 PM
    • Replies: 2
    • Views: 203
    10-15-2016, 11:44 AM Go to last post
  47. A Function that creates function into a list

    Hi, I am new to R. I have this code from my programming assignment: makeVector <- function(x = numeric()) { m <- NULL set...

    Started by Apple1‎, 10-09-2016 07:10 AM
    • Replies: 3
    • Views: 296
    10-15-2016, 08:39 AM Go to last post
  48. CEM using R

    Hi everybody, I need to build a matched control sample of non-financial fraud firms through CEM. I need to identify a sample of matched control...

    Started by paola.ancona‎, 10-14-2016 04:58 PM
    cem r
    • Replies: 0
    • Views: 170
    10-14-2016, 04:58 PM Go to last post
  49. Spearman's Correlation and p-Value

    Hi there! I have a dataset of n=100 and I wanted to test the correlation of 4 performance metrics. I use the spearman correlation since the data...

    Started by leomessi178‎, 10-12-2016 08:55 AM
    • Replies: 0
    • Views: 219
    10-12-2016, 08:55 AM Go to last post
  50. Wilcoxon Rank Sum

    Hey Guys I know how to do the wilcoxon rank sum test (>wilcox.test(x,y)). However, I have a hard time finding the sums of the ranks. Does anyone...

    Started by leomessi178‎, 10-11-2016 11:30 AM
    • Replies: 4
    • Views: 210
    10-11-2016, 12:01 PM Go to last post
  51. Error in assignment maximizing minimal quality in R language from the book example

    I was trying run the example given in the textbook named "Modeling and Solving Linear Programming with R" the link to the textbook can be found in...

    Started by jsmiranda‎, 10-11-2016 02:35 AM
    • Replies: 0
    • Views: 174
    10-11-2016, 02:35 AM Go to last post
  52. Apply formula to several files

    Hello everyone, I am a beginner in R. In order to verify my data files (which are tables with values separated by spaces in .txt files), I wanr...

    Started by fanfanus‎, 10-10-2016 01:21 PM
    • Replies: 2
    • Views: 233
    10-10-2016, 02:28 PM Go to last post
  53. Caching the mean of a Vector in R

    Hi, I am trying to learn R, and the below is an example code of a programming assignment. I don't quite understand how it works. after...

    Started by Apple1‎, 10-09-2016 02:11 AM
    • Replies: 0
    • Views: 232
    10-09-2016, 02:11 AM Go to last post
  54. Trouble specifying correlation matrix in rjags

    Hi All, EDIT: Will cross-post on the BUGS mailing list but would like to hear your answers as that board is pretty quite. So I have data as in...

    Started by Lazar‎, 01-02-2014 11:27 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 3,754
    10-08-2016, 02:28 PM Go to last post
  55. Simulate Ar(1) process with different y0 values and uniform distribution

    I need to plot an Ar(1) graph for the process yk = 0.75yk-1 + ek. for y0=1 and another graph for y0=10. assume ek is uniformly distributed on...

    Started by ash369ster‎, 10-08-2016 01:38 PM
    ar(1), r language, r studio, time-series
    • Replies: 0
    • Views: 207
    10-08-2016, 01:38 PM Go to last post
  56. strange plot

    Hi. Im trying to do a plot to relate a categorical variable: city to a numeric variable: response time. Im doing with this command:...

    Started by oscarr‎, 10-07-2016 06:07 PM
    • Replies: 4
    • Views: 291
    10-07-2016, 09:25 PM Go to last post
  57. Excluding the effect of one of two factors

    Hello, My Name is Maya and I am new to this forum, and my skills in statistics are relatively basic. I hope you will excuse my poor English, as it is...

    Started by MajaEdlund‎, 10-06-2016 03:24 AM
    • Replies: 3
    • Views: 289
    10-07-2016, 12:07 AM Go to last post
  58. Compliling error: fPortfolio R Package

    I am trying to build an efficient frontier using fPortfolio R Package (R3.3.1 and fPortfolio 3011.81). But launching...

    Started by douglasswm‎, 10-06-2016 04:16 AM
    r programing
    • Replies: 0
    • Views: 205
    10-06-2016, 04:16 AM Go to last post
  59. Plots to different charts

    Hi! My situation is very much the same as in this image http://www.nature.com/bmt/journal/v40/n4/fig_tab/1705727f1.html#figure-title I am...

    Started by obruck‎, 08-31-2016 04:03 AM
    • Replies: 10
    • Views: 539
    10-06-2016, 03:48 AM Go to last post
  60. Mutating to add new columns

    I am looking for the highest average BasePay, and have this data: > q<-select(salaryDF, JobTitle:BasePay) > q # A tibble: 111,490 2 ...

    Started by DV Man‎, 10-03-2016 06:40 PM
    • Replies: 13
    • Views: 522
    10-05-2016, 01:22 PM Go to last post

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