1. Announcement:
    Want access to a chatbox?
    Dason ‎(Devorador de queso)
    05-10-2017
    Views:
    2,856
+ Post New Thread
Page 16 of 69 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 66 ... LastLast
Threads 901 to 960 of 4122

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: 271,614
    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
    news
    • Replies: 115
    • Views: 112,460
    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: 13,570
    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: 117,438
    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: 257,260
    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
    information
    • Replies: 100
    • Views: 124,828
    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: 26,236
    10-17-2012, 07:20 PM Go to last post
  1. Problem with a Correspondence analysis

    Hi everyone, I am a graduate student and I am currently working on a Food Sensory analysis. I want to run a Correspondence analysis in order...

    Started by Tochann‎, 04-09-2015 03:45 AM
    • Replies: 1
    • Views: 1,739
    04-09-2015, 10:18 AM Go to last post
  2. Red face how to combine multiple csv files in R using a common column in all the files?

    Hello Hello Everyone, please help me to write a code in combining multiple csv files in R using a common column in all the files( but diff no.of...

    Started by eswari‎, 02-21-2015 07:10 AM
    • Replies: 7
    • Views: 3,663
    04-08-2015, 05:40 PM Go to last post
  3. Can R do this...

    SPSS, which wants us to renew a contract, lists this as an advantage of doing so. My guess is there is a R package to do this (of course I don't...

    Started by noetsi‎, 04-06-2015 04:33 PM
    • Replies: 3
    • Views: 1,436
    04-08-2015, 03:13 PM Go to last post
  4. Talking Need to compare three data files and generate a report for the missing/not matching

    I have a reference Main Data files with these Column (Product ID ,Product Name ,Shipment date ,comments) .I need to compare this keeping primary Key...

    Started by netdbaind‎, 04-08-2015 01:55 PM
    • Replies: 0
    • Views: 981
    04-08-2015, 01:55 PM Go to last post
  5. dplyr: removing NAs from group_by variable

    I'm using the group_by function in dplyr, however, in the variable that I'm grouping by, there are NAs, which group_by is making into a seperate...

    Started by APOCooter‎, 04-07-2015 03:47 PM
    • Replies: 2
    • Views: 2,679
    04-07-2015, 04:15 PM Go to last post
  6. Mixed model mancova in R in comparison with SPSS and statistica

    Dear all, I'm trying to perform mixed design manova in R with one between subject variable and one within subject variable. First of all, my...

    Started by nickx‎, 04-05-2015 03:46 PM
    • Replies: 1
    • Views: 3,255
    04-07-2015, 07:29 AM Go to last post
  7. Simulate data

    Hello, I'm facing the following task: Simulate 500 values of the statistic (n-1)s^2/sigma^2 based on taking 500 samples of size n=40 from the...

    Started by Osiris10101‎, 04-06-2015 02:45 PM
    • Replies: 1
    • Views: 1,391
    04-06-2015, 02:57 PM Go to last post
  8. How to use Anova from package car right

    I have a problem using different ways of ANOVA using R. I read a lot of tutorials how do ANOVA and I also want to do the Huynh-Feldt correction in...

    Started by Flowerpower‎, 03-12-2015 07:07 AM
    anova, anova table, huynh-feldt correction, maulchy test, rcran
    • Replies: 1
    • Views: 1,850
    04-06-2015, 02:00 AM Go to last post
  9. Monte-Carlo integration

    Calculate \int_1^2 cx^2e^xdx where c is constant f(x)=ce^x, x\in \phi(x)=x^2 i)Using Monte-Carlo integration ii) Using antagonistic...

    Started by askazy‎, 04-04-2015 02:32 PM
    • Replies: 0
    • Views: 1,073
    04-04-2015, 02:32 PM Go to last post
  10. PUZZLE fractal

    who is the first that can write a code to develop a chart with a fractal?:D:D:D:D:D:confused::confused::confused::confused::confused:

    Started by tyu90‎, 04-04-2015 08:12 AM
    • Replies: 0
    • Views: 1,205
    04-04-2015, 08:12 AM Go to last post
  11. How to obtain density values of the heat map of kernel density distribution ?

    Hi all, So that looks tricky to me since I'm not specialized in statistics and softwares, but I'm hopeful that someone will give me an answer. ...

    Started by koronfelina‎, 04-01-2015 09:08 PM
    • Replies: 7
    • Views: 3,369
    04-03-2015, 07:29 PM Go to last post
  12. Which programs to download

    For those who are likely to say "this is crazy" 1) you're right and 2) you never worked in a state agency. Basically my agency got approval to...

    Started by noetsi‎, 03-19-2015 03:52 PM
    5 Pages
    1 2 3 ... 5
    installing r packages
    • Replies: 68
    • Views: 13,614
    04-03-2015, 04:52 PM Go to last post
  13. negative Rē in output of randomForest package

    Hi everyone, I am currently writing my master thesis about random forests and just started to work with the R software. When I am running my model...

    Started by alexa_cgn‎, 04-03-2015 09:11 AM
    negative r squared, r software, random forests, regression forests
    • Replies: 6
    • Views: 6,618
    04-03-2015, 12:46 PM Go to last post
  14. Numerical Integration

    Hey I'm trying to learn techniques of numerical integration and would like to hear from anybody else if they know of any litterature - preferable...

    Started by JesperHP‎, 04-01-2015 10:17 AM
    • Replies: 5
    • Views: 1,902
    04-03-2015, 09:50 AM Go to last post
  15. Proportions and CIs based on different factor levels

    I'm wondering if there's a package/function that can give me the proportion and confidence intervals of different factor levels. I have data that...

    Started by APOCooter‎, 04-01-2015 05:25 PM
    • Replies: 3
    • Views: 1,531
    04-02-2015, 04:26 PM Go to last post
  16. generate main panel with action button [R-Shiny]

    Hi, I'm not an expert in programing, but I try to build an application with Shiny. You could find the entire code below for a better understanding...

    Started by Cyrille‎, 03-26-2015 05:27 AM
    • Replies: 1
    • Views: 6,191
    04-01-2015, 06:16 AM Go to last post
  17. venn diagrams and par

    Hi. I am using the VennDiagram package to draw some venn diagrams. However, i want to draw multiple diagrams in the same plot, using par(mfrow ...)...

    Started by merik‎, 02-20-2015 12:27 PM
    • Replies: 2
    • Views: 1,781
    03-31-2015, 08:35 PM Go to last post
  18. Conditional Logistic Regression - help with interpreting results

    Hello there, I have performed a conditional logistic regression in R using the survival package, but I am not certain how to interpret my results...

    Started by Neofelis‎, 03-28-2015 02:40 PM
    • Replies: 10
    • Views: 5,491
    03-30-2015, 09:51 AM Go to last post
  19. Back testing trades in R

    Hi, Id like to do the following in R: I assume to have a series of tick data, say of EURUSD Spot. To keep things simple, I would like to know the...

    Started by randommess‎, 03-30-2015 09:07 AM
    • Replies: 0
    • Views: 1,069
    03-30-2015, 09:07 AM Go to last post
  20. multivariate garch project

    hello everyone! i'm developing a DCC-GARCH this i the specification of the univariate GARCH that than i'll put in the DCC specification. ...

    Started by tyu90‎, 03-30-2015 07:40 AM
    • Replies: 0
    • Views: 1,040
    03-30-2015, 07:40 AM Go to last post
  21. makefile knitr

    Ok so I want to make a makefile that will find all .Rmd files and convert them to html files. I have a make file the works but I want to work loop...

    Started by Lazar‎, 02-18-2015 09:07 PM
    html, knitr, make
    • Replies: 4
    • Views: 1,522
    03-30-2015, 07:36 AM Go to last post
  22. [R] environment aware scripting

    I like to create general purpose robust scripts, ones that work regardless (which is also why I aim to use as little packages as possible - having...

    Started by TheEcologist‎, 02-23-2015 10:47 AM
    • Replies: 8
    • Views: 2,137
    03-30-2015, 07:21 AM Go to last post
  23. Estimating fixed vs. random effects with lme (Hausman?)

    I have ran two lme mixed effects models in R, both using the same fixed effects variables but each with a different random effect variable. My...

    Started by samuelle‎, 03-30-2015 05:52 AM
    fixed effects, hausman, lme, random effects
    • Replies: 0
    • Views: 1,752
    03-30-2015, 05:52 AM Go to last post
  24. Using the Multiple Linear Regression Model to predict values.

    I've used R to create two linear regression models - one level-level and one log-level, from 125 lines of data given to me. I've been told: For...

    Started by elt48‎, 03-27-2015 12:01 PM
    fitted model, linear regression, prediction, rmspe
    • Replies: 5
    • Views: 2,101
    03-30-2015, 05:10 AM Go to last post
  25. DCC-garch forecast and for loop

    Hello everyone! i'm trying to write a for loop with a DCC-garch forecasting. i'm using rmgarch package. how can i develop a for loop on...

    Started by tyu90‎, 03-29-2015 03:34 AM
    • Replies: 1
    • Views: 1,419
    03-29-2015, 05:51 PM Go to last post
  26. Accept-Reject Method

    I want to generate a random variable X~exponential(1/2) by accept-reject method. f(x)=\frac{1}{2}e^{\frac{-1}{2}x} x\geq0. So I chose...

    Started by askazy‎, 03-28-2015 05:11 PM
    • Replies: 8
    • Views: 1,907
    03-28-2015, 06:42 PM Go to last post
  27. CCC and DCC MV-GARCH with R

    Hello, i'm new on R, i'm trying to develop a multivariate GARCH (CCC-GARCH or DCC-GARCH) with Banks's stocks return, Short and long term interest...

    Started by tyu90‎, 03-23-2015 05:08 AM
    • Replies: 2
    • Views: 3,672
    03-25-2015, 05:56 AM Go to last post
  28. Problem with nlme() convergence in a Monte Carlo simulation

    Hello. As part of a Monte Carlo simulation, I'm programming some model comparisons on generated data. The underlying relationship in the data is...

    Started by CapacitorFluxing‎, 03-16-2015 10:41 PM
    • Replies: 6
    • Views: 3,684
    03-18-2015, 05:05 AM Go to last post
  29. POSIXct objects in R

    So I have some arrival (and departure) data I wish to look at over the course of a month. I thought it would be best to convert the data to a date...

    Started by Prometheus‎, 03-17-2015 07:57 AM
    • Replies: 0
    • Views: 2,324
    03-17-2015, 07:57 AM Go to last post
  30. Post Request for feedback on some simple functions

    I'm currently taking the R Programming course as part of the Data Science certificate with Johns Hopkins through Coursera, and I wanted to get some...

    Started by cbtalkstats‎, 03-13-2015 06:29 PM
    • Replies: 8
    • Views: 3,017
    03-16-2015, 05:14 PM Go to last post
  31. arima() : Not possible to skip an AR Term ???!!!

    Hello. In the following example, you can see, that it is obviosly unfavourable to take the AR(2) and AR(3) term into the model, as the...

    Started by consuli‎, 03-16-2015 11:08 AM
    • Replies: 4
    • Views: 1,628
    03-16-2015, 02:41 PM Go to last post
  32. Installation does not work

    I am trying to start using R I went to my console and tried to install a new program > install.packages("mice") I get this Warning in...

    Started by noetsi‎, 03-10-2015 03:53 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 5,752
    03-16-2015, 12:20 PM Go to last post
  33. [SOLVED] Show distributions, same height different variances

    I want show two distributions on the same pot that have identical height but different variances. I understand logically why my approach below...

    Started by trinker‎, 03-14-2015 12:15 PM
    distribution
    • Replies: 6
    • Views: 1,844
    03-14-2015, 03:47 PM Go to last post
  34. confused by significance codes in R

    Hello, I am estimating logistic regression models using R. The significance codes used by R is Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’...

    Started by t.wang21@yahoo.com.au‎, 03-08-2015 06:49 PM
    • Replies: 4
    • Views: 11,985
    03-14-2015, 06:31 AM Go to last post
  35. P-Values for pacf()

    Hello, I am looking for the p-values for the partial auto-covariance function which is implemented in R as pacf(). Just like cor.test()$p.value...

    Started by consuli‎, 03-13-2015 03:45 PM
    • Replies: 0
    • Views: 1,627
    03-13-2015, 03:45 PM Go to last post
  36. Difficulty subsetting data

    Hey guys, I am working on a 18 X 70 dataset. I am attempting to isolate 3 cases and 13 variables. Easy enough, however R is being difficult with...

    Started by DRMORRIS‎, 03-12-2015 11:55 AM
    • Replies: 2
    • Views: 1,161
    03-13-2015, 03:41 PM Go to last post
  37. 3 by 2 factorial, trying to subset by row and column, so simple!

    column 1 values 1, 2, 3 column 2 values 1, 2, 3, 4 column 3 has pairs of responses for each, looking to subset by column 1 then column 2 so I can...

    Started by shoneone‎, 03-12-2015 04:29 PM
    • Replies: 1
    • Views: 1,340
    03-12-2015, 09:28 PM Go to last post
  38. Multilevel meta-analysis in R using lme4 and lmer

    Dear users, I am running multilevel meta-analyses in R using lme4 and lmer. lmer(effect size ~ -1 + Covariate + (1|StudyID), data = data,...

    Started by KOwen‎, 03-11-2015 04:24 PM
    confidence intervals, lme4, lmer, multilevel meta-analysis, using r
    • Replies: 7
    • Views: 3,931
    03-12-2015, 08:39 PM Go to last post
  39. How to create different files from 1 file

    Hello everyone. I have a file with 44770 columns and 22 rows. In the 3rd column, I have 31 different atributes and I want create automatically 31...

    Started by Statistician Analyzer‎, 03-12-2015 08:27 AM
    • Replies: 1
    • Views: 1,719
    03-12-2015, 08:48 AM Go to last post
  40. Random Number Generator

    Hello everyone, I am studying about random numbers generator when the distribution has a cumulative function defined I know use the method of the...

    Started by askazy‎, 03-10-2015 06:24 PM
    • Replies: 1
    • Views: 1,875
    03-11-2015, 07:47 AM Go to last post
  41. How do I fit 266 unique variables on the x-axis? What's the best graphic?

    I have a .csv file consisting of 1000 rows that I exported from MySQL. I have 266 unique variables in one row. Two questions: 1. How do I make a...

    Started by Poppins‎, 03-09-2015 11:18 AM
    graphics, large graphs
    • Replies: 9
    • Views: 2,753
    03-10-2015, 01:46 PM Go to last post
  42. Basic Vegan Question. Please Help.

    Hello everyone, I'm an undergraduate thesis student working on analyzing plant data using the vegan package in R. Both my professor and I are...

    Started by trin.invasives‎, 03-10-2015 10:01 AM
    • Replies: 0
    • Views: 1,309
    03-10-2015, 10:01 AM Go to last post
  43. Reading/converting time series in R

    Hi, I am relatively new to R and struggling with a probably trivial task. My challenge: I want to forecast hourly Power prices. And this is already...

    Started by randommess‎, 03-10-2015 02:57 AM
    forecasting, time series analysis, time series regression
    • Replies: 0
    • Views: 1,483
    03-10-2015, 02:57 AM Go to last post
  44. 3 Lines Matlab Code to R Code (Generating autocorrelated random values)

    Hello, I have found the following Matlab Code for generating autocorrelated random values, with a defined autocorrelation on lag 1. Source:...

    Started by consuli‎, 03-08-2015 08:19 AM
    autocorrelation
    • Replies: 1
    • Views: 1,972
    03-09-2015, 07:33 AM Go to last post
  45. Conversion function: Managing multiple matches

    Hi All, I have the following occupational status conversion code table https://dl.dropboxusercontent.com/u/17190019/sesconversionTable.csv What...

    Started by Lazar‎, 03-05-2015 07:55 PM
    • Replies: 8
    • Views: 2,173
    03-06-2015, 08:44 AM Go to last post
  46. Bugman: Knitr example of gVisPlot

    Here is an example of a motion chart: --- title: "My Awesome Plot" author: "Lazar" date: "16 February 2015" output: html_document --- ...

    Started by Lazar‎, 03-05-2015 06:07 PM
    • Replies: 3
    • Views: 2,923
    03-05-2015, 07:44 PM Go to last post
  47. I'm a newb to charts, graphs, and R --Ubuntu 14.04, Rstudio, MySQL, CSV files, Data

    Hi guys, I just wrote an introduction with a couple of reasons as to why I am here. Reason 1 is that I'm not sure where the divide is between big...

    Started by Poppins‎, 03-05-2015 01:15 PM
    big data, hadoop, mysql, nlp, rstudio
    • Replies: 0
    • Views: 1,013
    03-05-2015, 01:15 PM Go to last post
  48. NAs introduced by coercion

    hii, I am trying to plot a 3d-scatter graph , but it shows the error: Warning in xyz.coords(x, y, z, xlab = xlabel, ylab = ylabel, zlab = zlabel,...

    Started by kavita‎, 03-02-2015 03:34 AM
    • Replies: 2
    • Views: 4,952
    03-04-2015, 04:04 PM Go to last post
  49. >Hist problem

    Hello all ;) (am i on the good part of forum? sorry if i didn't i will change that) I have a problem to make my hist, if you could help i would be...

    Started by Elca2‎, 03-03-2015 08:13 PM
    • Replies: 7
    • Views: 2,091
    03-03-2015, 10:43 PM Go to last post
  50. For Bugman: Adding twitter bootstrap styling to Rmarkdown files

    I know this is not exactly what you want BUT this will: a) give tables that stretch across the page and are responsive b) there is heaps of...

    Started by Lazar‎, 03-03-2015 07:47 PM
    • Replies: 6
    • Views: 2,207
    03-03-2015, 10:08 PM Go to last post
  51. Boxplot

    Hello all! I have come across a very simple problem, but am unable to solve it :( In a boxplot, I am trying to set the scale of the y-axis: >...

    Started by RodeLoper‎, 03-03-2015 09:10 AM
    • Replies: 1
    • Views: 1,167
    03-03-2015, 09:41 AM Go to last post
  52. r command to maintain order of the common field and getting filename in the header

    Friends, I got the following code for combining multiple csv files in a particular folder, now its combining but only problem is its not...

    Started by eswari‎, 02-25-2015 03:16 AM
    • Replies: 1
    • Views: 1,158
    03-01-2015, 10:35 PM Go to last post
  53. [SOLVED] Set up labels of stacked bar charts created with lattice

    I already asked about this on stackoverflow.com, but no one answered yet. Some time ago I solved to put labels as percentages in stacked bar...

    Started by Iurie‎, 02-27-2015 03:38 AM
    gnu r, lattice, stacked bar charts
    • Replies: 2
    • Views: 1,590
    03-01-2015, 11:02 AM Go to last post
  54. Time series analysis 95% interval

    I want to compute a 95% interval and i use this code (my book tells me to use this) myforecast=predict (univariatemodel3, n.ahead = 10)...

    Started by studentbelg‎, 02-28-2015 11:42 AM
    • Replies: 1
    • Views: 2,116
    02-28-2015, 01:49 PM Go to last post
  55. [SOLVED] rmarkdown question

    So, I mentioned I was trying to learn rmarkdown and I have had some success, but run into a problem when selecting knitr - pdf. Running the basic...

    Started by bugman‎, 02-27-2015 07:27 PM
    • Replies: 1
    • Views: 9,749
    02-27-2015, 07:29 PM Go to last post
  56. summarySE error in R-Studio

    I have just tried to use the summary SE function in R-studio. Apparently this is a known, but by the looks, unresolved issue: ...

    Started by bugman‎, 02-25-2015 11:32 PM
    • Replies: 0
    • Views: 4,067
    02-25-2015, 11:32 PM Go to last post
  57. Which statistical test to use: 1000 pairs of ordinals

    Hello, I have a table of approximately 1000 pairs of values. x is an integer between 0 and 365, representing birthday y is an integer between...

    Started by sevenquid‎, 02-12-2015 03:00 PM
    coefficient significance, correlation, hypothesis, spearman's rank, test
    • Replies: 2
    • Views: 2,704
    02-25-2015, 06:04 PM Go to last post
  58. Powermap equivalent for R?

    I was blown away by Excel 365's Powermap capabilities: https://www.youtube.com/watch?v=CoeL3_5M2zA They change the map's projection on the fly,...

    Started by mexindian‎, 02-25-2015 09:57 AM
    bar, globe, map
    • Replies: 0
    • Views: 3,055
    02-25-2015, 09:57 AM Go to last post
  59. Kruskal-Wallis test in R: help with interpreting results

    Hi all, I have a question about the results of the Kruskal-Wallis test in R. I'm not sure what exactly the results mean, or how the test analyzed...

    Started by Neofelis‎, 02-24-2015 07:50 PM
    • Replies: 3
    • Views: 2,420
    02-24-2015, 09:09 PM Go to last post
  60. Automating VIF calculation on mutliple linear models

    I came up with this code to calculate VIF for variables for each model I am evaluating displayvif<-function(x){ for (i in 1:length(x)) ...

    Started by excelmac‎, 02-24-2015 06:58 PM
    loops, multicollinearity, regression analysis, vif
    • Replies: 0
    • Views: 1,414
    02-24-2015, 06:58 PM Go to last post

+ Post New Thread
Page 16 of 69 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 66 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 300 views
Hot thread with unread posts
More than 15 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats