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Forum: R

R programming and usage, R news, R tips and tutorials

  1. 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: 55,072
    04-14-2016, 01:02 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 05:08 AM
    6 Pages
    1 2 3 ... 6
    • Replies: 79
    • Views: 40,852
    02-24-2016, 04:38 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 03:42 PM
    19 Pages
    1 2 3 ... 19
    • Replies: 276
    • Views: 94,817
    02-08-2016, 02:48 PM Go to last post
  4. 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 12:38 AM
    • Replies: 1
    • Views: 1,599
    02-02-2016, 04:41 PM Go to last post
  5. 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 10:39 AM
    24 Pages
    1 2 3 ... 24
    • Replies: 354
    • Views: 102,281
    10-17-2015, 09:54 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 07:20 PM
    • Replies: 1
    • Views: 11,491
    06-04-2015, 08:01 AM Go to last post
  7. 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: 107
    • Views: 40,655
    11-22-2014, 08:28 AM Go to last post
  1. Help - Sum of two different probability function

    Hi everyone, i'm have some problem to estimate marginal distribution from data. I found three different distributions that explains data quite good:...

    Started by enry93‎, 05-23-2016 05:47 PM
    • Replies: 5
    • Views: 222
    Yesterday, 03:29 AM Go to last post
  2. Plotting in r

    Hi There I've goodness of fit my data 2 times. one time for normal distribution and another time for T.distribution. I have about 2500 data and I...

    Started by Zore‎, 05-23-2016 06:55 AM
    normal distribution, plot, plotting in r, t distribution
    • Replies: 0
    • Views: 98
    05-23-2016, 06:55 AM Go to last post
  3. R help with Binary log reg

    I've identified what I think is the best model for a binary logistic regression, but I need some suggestions for computing confidence intervals for...

    Started by ling5900‎, 05-22-2016 02:07 PM
    • Replies: 0
    • Views: 81
    05-22-2016, 02:07 PM Go to last post
  4. MARS regression (plotmo) understanding

    Hey guys, first post and I'm confused with the results, so I'll try to explain. Basically I'm doing a habitat modelling project predicting the...

    Started by rjc79‎, 05-21-2016 11:25 PM
    • Replies: 2
    • Views: 100
    05-22-2016, 01:22 PM Go to last post
  5. Post About Local Linear Trend in R.

    Hi! I installed bsts package to use local linear trend model in R. But while executing it says, package "BoomSpikeSlab" doesnt find its source...

    Started by Jarin‎, 05-21-2016 09:15 PM
    boom, linear trend, r package
    • Replies: 0
    • Views: 69
    05-21-2016, 09:15 PM Go to last post
  6. Help with interpretation

    Hello everyone, I tried to do cluster analysis for my class, but I'm not sure how to interpret the plot I got. Can anyone help me with that...

    Started by tomer‎, 05-18-2016 06:24 AM
    • Replies: 2
    • Views: 119
    05-21-2016, 12:46 PM Go to last post
  7. problem with sum(prod())

    hi. I tried to do this functions, but i wronged something, but I don't know what i wronged. can you help me? I writed the right function on paper. ...

    Started by Pinco94‎, 05-11-2016 08:44 AM
    • Replies: 2
    • Views: 215
    05-20-2016, 12:50 AM Go to last post
  8. Would you please help me to write the R program for my weather data

    Hello guys! I tried many times to write program in R for getting weekly average temperature for the year 2014. What I have in the excel sheet is...

    Started by bhim‎, 05-16-2016 02:57 PM
    • Replies: 4
    • Views: 230
    05-20-2016, 12:26 AM Go to last post
  9. What GLM family if response is Bray-Curtis dissimilarity? Can I use adonis (vegan)?

    I have some questions about testing for effects of different experimental levels on community similarity. I'll explain my planned experimental design...

    Started by rw2‎, 05-19-2016 06:05 AM
    adonis, bray-curtis, community, glm, vegan
    • Replies: 0
    • Views: 82
    05-19-2016, 06:05 AM Go to last post
  10. Numerical Derivatives: Differentiating regression equation

    Dear TS, I am trying to differentiate output of a regression model (equation) using numerical derivatives. rm(list=ls()) require(mfp)...

    Started by ledzep‎, 05-18-2016 09:11 AM
    • Replies: 2
    • Views: 137
    05-18-2016, 02:32 PM Go to last post
  11. Time difference calculations

    Does anyone know how to calculate the average time difference by categorical variable(s)? I have three columns. First two have categorical...

    Started by mike121‎, 05-17-2016 09:02 AM
    • Replies: 1
    • Views: 119
    05-17-2016, 01:51 PM Go to last post
  12. R: Date Calculation

    Let I have some data against time : time <- seq(ISOdate(2007,7,1,0), ISOdate(2008,4,5,23), by = "1 hour") y <- rnorm(n = length(time))...

    Started by Cynderella‎, 05-14-2016 05:42 AM
    r software
    • Replies: 2
    • Views: 189
    05-15-2016, 07:22 AM Go to last post
  13. Full matching on propensity scores in R

    I would like to ask some help with the following situation. I'm very new to R, but I want to try something since this is impossible in SAS. I...

    Started by anker‎, 02-23-2016 08:03 AM
    • Replies: 11
    • Views: 682
    05-13-2016, 08:51 AM Go to last post
  14. Confidence intervals from glmer models

    Hi! When reading this, please keep in mind I'm pretty bad with statistics so please bear with me. So, I'm trying to analyse data from an...

    Started by Keffe1‎, 05-13-2016 06:52 AM
    confidence interval, glmer, random factor
    • Replies: 0
    • Views: 74
    05-13-2016, 06:52 AM Go to last post
  15. Drawing random samples from clusters

    Dear TS, I have a question regarding generating a random sample from a given data. In my dataframe, I have two groups and I want to generate...

    Started by ledzep‎, 05-05-2016 08:18 AM
    • Replies: 4
    • Views: 234
    05-12-2016, 04:56 PM Go to last post
  16. after z-transformation problem with mean-function

    Hey everyone, i used the scale function to conduct a z-transformation. i have a question in respect of a problem, calculating a mean of a column....

    Started by mike_88‎, 04-19-2016 03:50 PM
    function mean, scale, z.transformation
    • Replies: 3
    • Views: 134
    05-09-2016, 01:38 AM Go to last post
  17. Sort matches in lists

    I have a list with words that I named "examples". Now I want to compare this list with two other lists "foodCompanies" and "resturants" to see if...

    Started by gulchen‎, 05-07-2016 04:37 AM
    • Replies: 2
    • Views: 246
    05-08-2016, 03:28 AM Go to last post
  18. finding how much memory variables use

    Is it possible to see how much memory variables are using in an R session? In Unix, I can type "ls -l" and see how big each of my files is. Can I do...

    Started by efoss‎, 05-07-2016 11:57 AM
    • Replies: 0
    • Views: 124
    05-07-2016, 11:57 AM Go to last post
  19. Exclamation Table of coefficient help

    Using R ive made 7 regression models i want to know exactly how this answered (b) A table with the coefficients of the 7possible multiple linear...

    Started by disdat11‎, 05-06-2016 06:15 PM
    • Replies: 0
    • Views: 112
    05-06-2016, 06:15 PM Go to last post
  20. Exclamation Just need some tips

    Hey, I have an assignment that requires us to use data and use R Studio and I have no idea how to do it. If anyone could just give me tips on what I...

    Started by disdat11‎, 05-04-2016 10:15 AM
    • Replies: 1
    • Views: 161
    05-05-2016, 05:18 AM Go to last post
  21. Creating Arrays from a two columns dataset

    Hi everybody, I would like to know how I can do the next thing, I have got two columns of a data ser with 10.000 data each one (X and Y), for...

    Started by rafonio‎, 05-04-2016 05:07 AM
    • Replies: 1
    • Views: 186
    05-04-2016, 08:11 AM Go to last post
  22. Converting loop into using foreach() and %dopar%

    I am having issues converting the following by using foreach() and %dopar% for (i in 1:nrow(runDate)) { old <- example %>% filter(date <...

    Started by lulumohca‎, 05-01-2016 07:47 PM
    • Replies: 1
    • Views: 183
    05-01-2016, 09:37 PM Go to last post
  23. TARX: Threshold Autoregressive Model with exogenous variables

    Hey guys! Iam currently working on my bachelors thesis. I am comparing different methods for electricity price forecastings. The literature uses...

    Started by lamse‎, 08-09-2014 02:43 AM
    • Replies: 4
    • Views: 916
    05-01-2016, 05:41 PM Go to last post
  24. Removing NAs from dataframe

    Hi First post and a relative R newbie.... I am using the vioplot library to produce some violin plots. I have an input CSV with columns off...

    Started by mikjsmith‎, 04-30-2016 05:45 AM
    • Replies: 4
    • Views: 219
    05-01-2016, 11:48 AM Go to last post
  25. Trying to run poLCA

    Hello, I am trying to run the poLCA program in R. I am running a model with 9 manifest variables, but the model only analyzes and produces output...

    Started by Timothyho09‎, 04-28-2016 01:10 PM
    • Replies: 0
    • Views: 207
    04-28-2016, 01:10 PM Go to last post
  26. Package similar to relaimpo for binary regression

    Dear all, I have a quick question that Iím really hoping you can help me with. Iím looking for a similar package to relaimpo that can be...

    Started by anda‎, 04-28-2016 08:22 AM
    regression, relative importance, rsoftware
    • Replies: 0
    • Views: 120
    04-28-2016, 08:22 AM Go to last post
  27. Rasterize "fun" query

    Hi I'm wanting to rasterize a polygon (shapefile; values of 1 and 2; 1 = outside a protected area, 2 = inside a protected area), to a 1minute...

    Started by silviakirkman‎, 04-27-2016 12:09 PM
    • Replies: 0
    • Views: 129
    04-27-2016, 12:09 PM Go to last post
  28. Problem in loading PLM Package

    Hello, I need to run some panel estimations and I am panning to use the "PLM" package in R software. I installed the package but when I am loading...

    Started by syed_aliraza‎, 04-27-2016 06:56 AM
    • Replies: 0
    • Views: 129
    04-27-2016, 06:56 AM Go to last post
  29. questions about lmer4

    The title pretty much sums it up. I have a model with factors Zone, Time and Site and substrate. The response is the number of critters...

    Started by bugman‎, 04-26-2016 01:43 AM
    • Replies: 3
    • Views: 227
    04-26-2016, 08:01 PM Go to last post
  30. question about dataframe and its "number of dimensions"

    Let us say that I have a traditional dataset with genes in the rows and "samples" in the columns. By "samples" I mean the people whose genes were...

    Started by lydiajones94‎, 04-23-2016 10:38 AM
    • Replies: 2
    • Views: 248
    04-23-2016, 01:17 PM Go to last post
  31. grep in R

    how do I select 3318 from the following variable name: 20150812_Founds-1_3318_01.RCC vs. Reference ? i know that i should use sub() or...

    Started by lydiajones94‎, 04-22-2016 08:53 PM
    • Replies: 6
    • Views: 307
    04-23-2016, 12:40 PM Go to last post
  32. R warning : the condition has length > 1 and only the first element will be used

    I have data like following : year month day y 2007 7 1 3845 2007 7 2 3756 2007 7 3 3564 . . . 2007 ...

    Started by Cynderella‎, 04-22-2016 09:18 AM
    r code
    • Replies: 4
    • Views: 236
    04-22-2016, 11:10 PM Go to last post
  33. Finding and assigning runs

    I have this data frame (over 2500000 rows long): chr pos med insert_count nucsomeI_group 1 I 1 0 0 low 2 I 2 ...

    Started by Prometheus‎, 04-20-2016 11:23 AM
    • Replies: 5
    • Views: 311
    04-21-2016, 03:56 PM Go to last post
  34. nlme arguments explained

    Hi All, I'm trying to run an nlme on some data looking at the nonlinear response (in this case 'distance', but will also use for 'weight') of...

    Started by han8‎, 04-20-2016 09:24 PM
    mixed effects model, nlme, nonlinear, repeated measures, rstats
    • Replies: 0
    • Views: 155
    04-20-2016, 09:24 PM Go to last post
  35. Handeling big datasets

    Hi, I have an excelsheet with 5131 rows and many columns. Each row is e.g. one stomach with information on year, month, station, fishlength,...

    Started by Anne3‎, 04-11-2016 03:38 AM
    • Replies: 2
    • Views: 237
    04-19-2016, 04:34 PM Go to last post
  36. post-hoc interaction following lme with both categorical and continuous factors.

    Hello, I'm relatively new to R and have run into some problems. Hoping someone can help! I'm using lme on a model with several, both...

    Started by maryska‎, 04-17-2016 09:47 AM
    continuous data, interaction, lme, post hoc
    • Replies: 0
    • Views: 189
    04-17-2016, 09:47 AM Go to last post
  37. Degree correlation of network

    I'm trying to analyze the degree correlation of a given network and I can't understand what is the best way to do it. With degree correlation I...

    Started by gey‎, 04-15-2016 01:52 PM
    • Replies: 0
    • Views: 174
    04-15-2016, 01:52 PM Go to last post
  38. Angry Bootstrapping code help needed in r??

    Hello friends. So I am ready to jump off a building because I cannot figure out this code for my LIFE. Everytime I run it, I get the standard error...

    Started by statzis2lit‎, 04-14-2016 04:01 PM
    bootstrap, bootstrapping, bootstrapping code, r coding
    • Replies: 0
    • Views: 194
    04-14-2016, 04:01 PM Go to last post
  39. Computing coverage probability for a Wald interval

    Hey, I need help computing the coverage probability for a Wald interval. So far I have the following R-code but the bold parts seem to be causing me...

    Started by mailrenegade‎, 04-13-2016 11:37 AM
    • Replies: 0
    • Views: 206
    04-13-2016, 11:37 AM Go to last post
  40. Shiny + DiagrammeR

    Hi all: I'm trying to develop a small Shiny app that uses DiagrammeR to create flowcharts. I want to be able to customize the label that appears...

    Started by jamesmartinn‎, 04-13-2016 08:15 AM
    • Replies: 0
    • Views: 155
    04-13-2016, 08:15 AM Go to last post
  41. initializing a large data frame

    I want to create an empty data frame with a certain number of rows and columns, with different columns having different classes. I could do something...

    Started by efoss‎, 04-09-2016 03:08 PM
    • Replies: 1
    • Views: 278
    04-12-2016, 08:48 PM Go to last post
  42. [R - nlme] non-linear regression Michaelis-Menten model

    Hello, I am attempting to model Michaelis-Menten uptake kinetics to predict denitrification rates (response) across a gradient of nitrate loading...

    Started by ss18‎, 04-12-2016 08:17 AM
    michaelis-menten, mixed effects model, nlme, pseudoreplication
    • Replies: 0
    • Views: 139
    04-12-2016, 08:17 AM Go to last post
  43. [R] solving differential equation for water content and concentration in soil

    I am using R to solve a set of differential equations using the package deSolve. The variables are WC and C, which stand for the water content and a...

    Started by pastequeman‎, 04-12-2016 03:33 AM
    desolve, differential equation, ode
    • Replies: 0
    • Views: 144
    04-12-2016, 03:33 AM Go to last post
  44. Time series in small data with R

    Hi there I have this data year number of surgeries 2000 570 2005 1340 2006 4730 2007 5359 2009 6060 2010 6340...

    Started by leili62‎, 04-11-2016 07:24 AM
    neural networks, small data set, svm, time series
    • Replies: 4
    • Views: 235
    04-11-2016, 03:56 PM Go to last post
  45. Models comparison with AIC

    Hi everyone, Iím working on a spatial point pattern analysis with the spatstat package in R. I would like to compare the goodness-of-fit of...

    Started by RoxaneBe‎, 04-09-2016 06:17 AM
    • Replies: 0
    • Views: 188
    04-09-2016, 06:17 AM Go to last post
  46. plotly won't publish

    Hi! I've been playing around with plotly and have some neat graphs I want to upload to my online (free) account. I seem to be getting an error...

    Started by jamesmartinn‎, 04-04-2016 12:52 PM
    • Replies: 1
    • Views: 389
    04-06-2016, 07:13 AM Go to last post
  47. How to prepare predictive model in R for future defect capability process ?

    Hi there, I'm a newbie of R language and predictive analytics but I have a solid foundation of Business Intelligence and Data warehouse field. ...

    Started by octoni‎, 04-02-2016 04:15 AM
    capability process, cpk, defect, predictive analytics, six sigma
    • Replies: 0
    • Views: 283
    04-02-2016, 04:15 AM Go to last post
  48. R Coding Questions (Fitting log SLR onto normal scale)

    Hey guys I'm having trouble with R and which codes to use(Newbie): So I have some data, I've performed a simple linear regression (SLR), however...

    Started by yomamg‎, 04-01-2016 11:35 PM
    assignment, codes, r code
    • Replies: 0
    • Views: 192
    04-01-2016, 11:35 PM Go to last post
  49. Insert snippet into R function

    I am trying to insert a piece of code into an already existing R function(s). I think I have a way but am sharing to allow others to (a) learn if...

    Started by trinker‎, 04-01-2016 11:34 PM
    • Replies: 0
    • Views: 179
    04-01-2016, 11:34 PM Go to last post
  50. Ecological Analysis with Many Confounding Variables

    Hi Everyone, Not sure if this type of post is allowed but I am at my wits end doing a biological diversity analysis with R. I do like statistics...

    Started by MiaB‎, 03-30-2016 10:11 AM
    • Replies: 4
    • Views: 369
    04-01-2016, 02:25 PM Go to last post
  51. How to avoid using the '$' in R

    R has these data structures that involve a sort-of 'master variable' and then sub-variables that are specified as master$sub. For example, if I'm...

    Started by DSandberg‎, 03-31-2016 05:00 PM
    • Replies: 4
    • Views: 325
    04-01-2016, 10:21 AM Go to last post
  52. Applying L1 and L2 weights

    I am trying to replicate reported results from the OECD in relation to the PISA 2003 data. In particular I am trying to calculate there ICC. They do...

    Started by Lazar‎, 03-31-2016 06:44 PM
    • Replies: 1
    • Views: 216
    03-31-2016, 07:30 PM Go to last post
  53. Plotting data

    Hi, Suppose i have the following data: x y z h1 h2 h3 h4 h5 h6 a1 a2 a3 a4 ...

    Started by nabeeha.deedar‎, 03-29-2016 07:49 AM
    plotting in r
    • Replies: 2
    • Views: 262
    03-31-2016, 01:34 PM Go to last post
  54. Modifying values on Y axis of a histogram

    Hello and sorry in advance for my poor English ;) I would like to plot a frequency distribution in R. On the X axis are my values (elevation in my...

    Started by Andreas77‎, 03-31-2016 06:41 AM
    axis, histogram
    • Replies: 0
    • Views: 162
    03-31-2016, 06:41 AM Go to last post
  55. Regression - Make a new group from data

    Hi. I am new to R, and have to do a regression on the dependent variable but only for a certain group which is characterized by one independent...

    Started by PERAV‎, 03-29-2016 10:27 AM
    regression
    • Replies: 2
    • Views: 266
    03-29-2016, 11:09 AM Go to last post
  56. A question about stochastic gradient boosting in R caret package

    Hello, everyone, I am currently using R caret package to estimate a stochastic gradient boosting. While most predictors are numeric, one predictor...

    Started by t.wang21@yahoo.com.au‎, 03-28-2016 07:07 PM
    • Replies: 1
    • Views: 190
    03-28-2016, 09:11 PM Go to last post
  57. Basic questions from newbie

    Hi, I am currently learning ML algorithms and implementing in R. I have a couple basic questions. 1.)Is dimensionality reduction same as feature...

    Started by chakravarty456‎, 03-27-2016 05:49 AM
    feature selection, machine learning, r programming and usage, r programming help, statisics
    • Replies: 1
    • Views: 523
    03-27-2016, 12:51 PM Go to last post
  58. DiagrammeR part 2: how to change colours

    So I posted: this I have it working, but the default colours are mega ugly. Anyone know / can steer me in the right direction as to how I can...

    Started by bugman‎, 03-23-2016 09:06 PM
    • Replies: 4
    • Views: 380
    03-24-2016, 07:39 PM Go to last post
  59. [SOLVED] error using DiagrammeR

    Does anyone have experience with the mermaid function in DiagrammeR? I ripped this gantt chart example from stackoverflow: ...

    Started by bugman‎, 03-23-2016 01:43 AM
    • Replies: 2
    • Views: 314
    03-23-2016, 04:58 PM Go to last post
  60. How to assign value to particular seasons?

    Say I have data for the 2013-2015 seasons, and I rate 2015 as important as 5, 2014 as important as 3, and 2013 as important as 1. How do I assign...

    Started by DV Man‎, 03-22-2016 03:40 PM
    • Replies: 1
    • Views: 186
    03-22-2016, 03:59 PM Go to last post

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