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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: 271,275
    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: 112,314
    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: 13,555
    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: 117,325
    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: 256,927
    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: 124,727
    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: 26,223
    10-17-2012, 07:20 PM Go to last post
  1. Retrieve PE, PEG and Dividend Yield of Hong Kong HangSeng Index through R Quantmod

    Hi All, I seek for advice on how to retrieve PE, PEG and Dividend Yield of Hong Kong HangSeng Index or particular stock (such as 0005.HK) through...

    Started by HenryWai‎, 12-14-2016 12:51 PM
    • Replies: 0
    • Views: 3,532
    12-14-2016, 12:51 PM Go to last post
  2. Parallel boxplots of all quantitative variables in mtcars data set?

    Does anyone know how to do this? I know how to display boxplots of individual variables such as, and I'll stay in the mtcars data set: ...

    Started by DV Man‎, 12-12-2016 03:25 PM
    • Replies: 2
    • Views: 3,710
    12-12-2016, 05:55 PM Go to last post
  3. Want to use mutate with two different data sets in dplyr

    Like before, my data sets are too large, so I will try my hand again at a reproducible example. t <- data.frame( Season = c(1985,...

    Started by DV Man‎, 12-11-2016 09:18 PM
    • Replies: 5
    • Views: 3,638
    12-11-2016, 11:40 PM Go to last post
  4. Sequential numbering for each month on a period of time

    Hi All, I am a beginner in R. I have a period of dates in my data set starting 10th April'2006 till 31st Aug'2016. Its a period of 125 months....

    Started by kbsudhir‎, 12-06-2016 01:03 PM
    • Replies: 4
    • Views: 3,732
    12-11-2016, 11:21 PM Go to last post
  5. Want to merge data frames, do I use match?

    I have the following dataset, which I will attach in a PDF due to a character restraint, and want to match its condition (ISO >= .163) with all age...

    Started by DV Man‎, 12-10-2016 04:00 PM
    • Replies: 8
    • Views: 3,716
    12-11-2016, 07:18 AM Go to last post
  6. Vungle Project


    Started by DV Man‎, 12-03-2016 02:11 PM
    • Replies: 12
    • Views: 4,662
    12-08-2016, 08:39 PM Go to last post
  7. Which type of graphs should I use to illustrate results for a paired t-test?

    I have a paired t-test, and am having trouble picking what graphs to use to illustrate some results for my presentation. Here is my data: vungle...

    Started by DV Man‎, 12-07-2016 03:20 PM
    • Replies: 13
    • Views: 4,172
    12-08-2016, 08:59 AM Go to last post
  8. Question [Help] Simple Markov Switching Model script?

    Hello everyone! I currently am looking for a way to analyze data using a Markov Switching Model, yet I am a complete idiot when it comes to...

    Started by shabada‎, 12-07-2016 10:45 AM
    • Replies: 0
    • Views: 2,469
    12-07-2016, 10:45 AM Go to last post
  9. Error in `[.data.frame`(x, xok) : undefined columns selected

    Here is my data vungle <- structure(list(Strategy = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,...

    Started by DV Man‎, 12-07-2016 08:25 AM
    • Replies: 2
    • Views: 3,863
    12-07-2016, 09:14 AM Go to last post
  10. 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: 5,920
    12-06-2016, 02:51 AM Go to last post
  11. 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: 3,412
    12-03-2016, 09:08 AM Go to last post
  12. 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: 3,040
    12-02-2016, 11:02 PM Go to last post
  13. 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: 2,799
    12-02-2016, 07:37 AM Go to last post
  14. 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: 3,235
    11-29-2016, 11:33 AM Go to last post
  15. 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: 3,143
    11-28-2016, 11:22 PM Go to last post
  16. 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: 3,784
    11-28-2016, 10:17 AM Go to last post
  17. 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: 3,176
    11-27-2016, 03:13 PM Go to last post
  18. 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: 4,827
    11-23-2016, 02:30 AM Go to last post
  19. 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: 3,553
    11-20-2016, 03:59 PM Go to last post
  20. 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: 3,799
    11-19-2016, 07:45 AM Go to last post
  21. 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: 3,777
    11-18-2016, 03:30 AM Go to last post
  22. 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: 3,256
    11-16-2016, 08:26 AM Go to last post
  23. 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: 3,230
    11-16-2016, 07:55 AM Go to last post
  24. 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: 3,672
    11-13-2016, 12:24 AM Go to last post
  25. 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: 2,666
    11-10-2016, 02:10 PM Go to last post
  26. 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: 4,612
    11-10-2016, 01:10 PM Go to last post
  27. 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: 3,172
    11-09-2016, 03:26 AM Go to last post
  28. 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: 3,897
    11-07-2016, 07:36 AM Go to last post
  29. 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 08:24 PM
    • Replies: 12
    • Views: 4,888
    11-06-2016, 05:48 PM Go to last post
  30. 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: 3,406
    11-06-2016, 10:57 AM Go to last post
  31. 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: 3,283
    11-06-2016, 10:31 AM Go to last post
  32. 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 08:06 AM
    calculated column, r code
    • Replies: 9
    • Views: 3,903
    11-05-2016, 04:56 PM Go to last post
  33. 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 08:20 AM
    • Replies: 4
    • Views: 3,812
    11-04-2016, 02:35 AM Go to last post
  34. 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 02:06 AM
    censoring, exponential distribution, fit distribution, fitdistplus
    • Replies: 0
    • Views: 3,163
    11-03-2016, 02:06 AM Go to last post
  35. 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 10:24 PM
    • Replies: 3
    • Views: 3,294
    11-02-2016, 12:40 AM Go to last post
  36. 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: 6
    • Views: 3,751
    11-01-2016, 03:18 PM Go to last post
  37. 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 11:25 AM
    • Replies: 9
    • Views: 3,177
    10-30-2016, 02:02 PM Go to last post
  38. 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 03:26 AM
    gui, java, simple
    • Replies: 6
    • Views: 3,469
    10-29-2016, 09:57 AM Go to last post
  39. 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 12:20 PM
    logistic regression, r coding
    • Replies: 5
    • Views: 3,549
    10-27-2016, 07:14 AM Go to last post
  40. Exclamation SOS!!!!!!! Appraisal Ratio in R

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

    Started by Lisa92‎, 10-26-2016 10:20 AM
    appraisal ratio, finance, ratio
    • Replies: 0
    • Views: 2,569
    10-26-2016, 10:20 AM Go to last post
  41. 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 05:17 AM
    • Replies: 0
    • Views: 2,224
    10-26-2016, 05:17 AM Go to last post
  42. 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 08:51 PM
    • Replies: 8
    • Views: 4,023
    10-25-2016, 09:34 PM Go to last post
  43. 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 02:57 AM
    • Replies: 1
    • Views: 2,289
    10-24-2016, 10:24 AM Go to last post
  44. 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 08:35 AM
    • Replies: 4
    • Views: 3,897
    10-22-2016, 06:39 AM Go to last post
  45. 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 03:57 AM
    disease, incidence rate, linear regression, predictive analysis, projection
    • Replies: 0
    • Views: 2,314
    10-21-2016, 03:57 AM Go to last post
  46. 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 01:05 PM
    • Replies: 2
    • Views: 2,154
    10-21-2016, 03:15 AM Go to last post
  47. 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 02:26 AM
    • Replies: 0
    • Views: 2,225
    10-21-2016, 02:26 AM Go to last post
  48. 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 06:27 PM
    • Replies: 8
    • Views: 3,687
    10-20-2016, 08:53 PM Go to last post
  49. 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 10:54 AM
    • Replies: 3
    • Views: 3,060
    10-20-2016, 05:59 PM Go to last post
  50. 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 03:11 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 13,522
    10-19-2016, 01:17 PM Go to last post
  51. 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 11:52 AM
    • Replies: 0
    • Views: 2,268
    10-19-2016, 11:52 AM Go to last post
  52. 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 11:20 AM
    distance unit, geosphere
    • Replies: 2
    • Views: 4,008
    10-18-2016, 11:46 AM Go to last post
  53. 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 06:16 PM
    • Replies: 5
    • Views: 2,368
    10-18-2016, 08:52 AM Go to last post
  54. 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 09:34 PM
    • Replies: 2
    • Views: 2,390
    10-15-2016, 10:44 AM Go to last post
  55. 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 06:10 AM
    • Replies: 3
    • Views: 2,845
    10-15-2016, 07:39 AM Go to last post
  56. 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 03:58 PM
    cem r
    • Replies: 0
    • Views: 1,979
    10-14-2016, 03:58 PM Go to last post
  57. 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 07:55 AM
    • Replies: 0
    • Views: 1,770
    10-12-2016, 07:55 AM Go to last post
  58. 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 10:30 AM
    • Replies: 4
    • Views: 2,199
    10-11-2016, 11:01 AM Go to last post
  59. 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 01:35 AM
    • Replies: 0
    • Views: 1,453
    10-11-2016, 01:35 AM Go to last post
  60. 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 12:21 PM
    • Replies: 2
    • Views: 2,311
    10-10-2016, 01:28 PM Go to last post

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