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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: 54,356
    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: 39,795
    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: 93,032
    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: 1,456
    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: 100,154
    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: 11,312
    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: 39,852
    11-22-2014, 08:28 AM Go to last post
  1. 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, Yesterday 08:18 AM
    • Replies: 1
    • Views: 88
    Yesterday, 11:20 AM Go to last post
  2. 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: 98
    Yesterday, 05:18 AM Go to last post
  3. 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: 74
    05-04-2016, 08:11 AM Go to last post
  4. 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: 133
    05-01-2016, 09:37 PM Go to last post
  5. 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: 880
    05-01-2016, 05:41 PM Go to last post
  6. 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: 167
    05-01-2016, 11:48 AM Go to last post
  7. 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: 160
    04-28-2016, 01:10 PM Go to last post
  8. Package similar to relaimpo for binary regression

    Dear all, I have a quick question that Im really hoping you can help me with. Im 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: 86
    04-28-2016, 08:22 AM Go to last post
  9. 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: 95
    04-27-2016, 12:09 PM Go to last post
  10. 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: 84
    04-27-2016, 06:56 AM Go to last post
  11. 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: 185
    04-26-2016, 08:01 PM Go to last post
  12. 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: 206
    04-23-2016, 01:17 PM Go to last post
  13. 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: 258
    04-23-2016, 12:40 PM Go to last post
  14. 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: 199
    04-22-2016, 11:10 PM Go to last post
  15. 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: 249
    04-21-2016, 03:56 PM Go to last post
  16. 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: 130
    04-20-2016, 09:24 PM Go to last post
  17. 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: 203
    04-19-2016, 04:34 PM Go to last post
  18. 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: 157
    04-17-2016, 09:47 AM Go to last post
  19. 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: 147
    04-15-2016, 01:52 PM Go to last post
  20. 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: 161
    04-14-2016, 04:01 PM Go to last post
  21. 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: 181
    04-13-2016, 11:37 AM Go to last post
  22. 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: 119
    04-13-2016, 08:15 AM Go to last post
  23. 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: 237
    04-12-2016, 08:48 PM Go to last post
  24. [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: 108
    04-12-2016, 08:17 AM Go to last post
  25. [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: 120
    04-12-2016, 03:33 AM Go to last post
  26. 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: 183
    04-11-2016, 03:56 PM Go to last post
  27. Models comparison with AIC

    Hi everyone, Im 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: 157
    04-09-2016, 06:17 AM Go to last post
  28. 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: 342
    04-06-2016, 07:13 AM Go to last post
  29. 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: 249
    04-02-2016, 04:15 AM Go to last post
  30. 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: 170
    04-01-2016, 11:35 PM Go to last post
  31. 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: 150
    04-01-2016, 11:34 PM Go to last post
  32. 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: 335
    04-01-2016, 02:25 PM Go to last post
  33. 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: 281
    04-01-2016, 10:21 AM Go to last post
  34. 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: 183
    03-31-2016, 07:30 PM Go to last post
  35. 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: 229
    03-31-2016, 01:34 PM Go to last post
  36. 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: 140
    03-31-2016, 06:41 AM Go to last post
  37. 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: 235
    03-29-2016, 11:09 AM Go to last post
  38. 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: 170
    03-28-2016, 09:11 PM Go to last post
  39. 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: 424
    03-27-2016, 12:51 PM Go to last post
  40. 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: 341
    03-24-2016, 07:39 PM Go to last post
  41. [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: 277
    03-23-2016, 04:58 PM Go to last post
  42. 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: 160
    03-22-2016, 03:59 PM Go to last post
  43. Perm ANOVA - help!

    Hi everybody! I'm trying to test whether there's a difference in coral sizes between 4 habitats. I don't have homogeneity of variance between the...

    Started by UV-J‎, 03-22-2016 03:14 AM
    perm
    • Replies: 2
    • Views: 224
    03-22-2016, 10:59 AM Go to last post
  44. Why am I getting an error message? What does c mean?

    NL = c("FLA", "STL", "HOU", "STL", "COL", "PHI", "PHI", "SFG", "STL", "SFG") AL = c("NYY", "BOS", "CHW", "DET", "BOS", "TBR", "NYY", "TEX", "TEX",...

    Started by DV Man‎, 03-21-2016 10:19 PM
    • Replies: 4
    • Views: 220
    03-21-2016, 10:49 PM Go to last post
  45. Any baseball fans who use R?

    I'm reading "Analyzing Baseball With R." Very fascinating stuff. I'm a Phillies fan from Delaware.

    Started by DV Man‎, 03-21-2016 07:31 PM
    • Replies: 0
    • Views: 162
    03-21-2016, 07:31 PM Go to last post
  46. Angry Medical Audit New Column based off three other columns

    Hello I'm Sean a final year medical student doing an audit on some ultrasound data. I'm new to programming and R. What I want to do is create a...

    Started by SeanWestbury‎, 03-21-2016 05:38 AM
    • Replies: 1
    • Views: 169
    03-21-2016, 11:22 AM Go to last post
  47. Smile How do you use dput to upload to stackoverflow?

    I'm a complete nube, never programmed in my life and downloaded R two days ago. Trying to upload a data table in R to stackoverflow for help with...

    Started by SeanWestbury‎, 03-21-2016 06:19 AM
    medical statistics, upload
    • Replies: 0
    • Views: 208
    03-21-2016, 06:19 AM Go to last post
  48. Why doesn't R post all of my data?

    I have saved a certain file, and when I go to post it, it only posts the first five years out of the 10 that were saved. Does anyone know why this...

    Started by DV Man‎, 03-19-2016 07:25 PM
    • Replies: 8
    • Views: 336
    03-20-2016, 09:57 PM Go to last post
  49. Post mlogit: restrict coefficient of alternative-invariant variable to be equal for alt

    Hi. For evaluating a choice experiment I estimate a conditional logit model with mlogit in R . The output looks like this: Call: mlogit(RES ~...

    Started by ga34gep‎, 03-10-2016 10:10 AM
    • Replies: 4
    • Views: 389
    03-20-2016, 04:51 PM Go to last post
  50. ggplot Options

    Alright, I am finally getting back to the plot I mentioned last week. Parts I have left to fix in the below graph are: - tick labels bigger ...

    Started by hlsmith‎, 03-16-2016 02:18 PM
    • Replies: 2
    • Views: 268
    03-16-2016, 03:45 PM Go to last post
  51. Shiny apps - Facebook data mining using R

    Hello everyone, last time I posted one thread about collecting data from Facebook. You can watch the tutorial here...

    Started by bobbymistery‎, 08-03-2015 06:13 AM
    • Replies: 1
    • Views: 698
    03-16-2016, 02:30 AM Go to last post
  52. [R:ggplot2] Draw line segments through vertically stacked points on a scatter plot

    I have a fairly large data set that is very similar to the following example: a...

    Started by carabidus‎, 03-11-2016 08:21 PM
    • Replies: 3
    • Views: 334
    03-12-2016, 10:48 PM Go to last post
  53. Passing a function as an argument

    Hi all, I'm currently taking an online course on R on coursera. I'm at a point in the class where this concept is a little fuzzy to me. Can...

    Started by DATAfiend‎, 03-11-2016 10:36 PM
    argument, function
    • Replies: 1
    • Views: 302
    03-12-2016, 11:06 AM Go to last post
  54. Question calculate marginal effects using mlogit package

    Hi R-users I try to calculate marginal effects of a multinomial logistic regression. To do this i use mlogit package and effects() function. ...

    Started by lmoulin‎, 06-07-2013 06:54 AM
    logit model, marginal effects, mlogit, multinomial regression
    • Replies: 9
    • Views: 3,945
    03-12-2016, 09:20 AM Go to last post
  55. R mlogit: How do I interpret marginal effects using absolute or relative type?

    Hi R users, I use effects() to compute the marginal effects of a mlogit model in R. effects(object, covariate = NULL, type = c("aa", "ar", "rr",...

    Started by Thomas.V‎, 03-12-2016 08:21 AM
    covariate, marginal effects, mlogit, multinomial logit
    • Replies: 0
    • Views: 179
    03-12-2016, 08:21 AM Go to last post
  56. Distance calculation in R using spDists

    Hello everyone. I am a graduate researcher, trying to explore the packages in R to help me with my research work. I am using R-3.2.2 and have...

    Started by Student Researcher‎, 03-10-2016 11:10 AM
    • Replies: 1
    • Views: 304
    03-11-2016, 12:44 PM Go to last post
  57. Programming newbie problem. Reading .mtx files as needed.

    Hello everyone and thanks in advance for everyone willing to help. I study climate geography and for my bachelor thesis I need to compare two...

    Started by Vortimer‎, 03-11-2016 04:47 AM
    • Replies: 0
    • Views: 144
    03-11-2016, 04:47 AM Go to last post
  58. Unhappy Optimizing java to R call in Rserve

    I am facing a problem while performing optimization using lpSolveAPI in R and Java on a large dataset. I tried Rserve,RCaller,JRI,Renjin and found...

    Started by jijosunny‎, 03-11-2016 03:03 AM
    java, optimization, rserve
    • Replies: 0
    • Views: 156
    03-11-2016, 03:03 AM Go to last post
  59. geographic network analysis

    I'm trying to do geographic network analysis. I've used igraph libraries to make a network. I've used maptools to make a map. How do I combine...

    Started by garynobles‎, 03-02-2016 02:33 PM
    • Replies: 2
    • Views: 331
    03-09-2016, 04:28 PM Go to last post
  60. Matrix multiplication

    I have two files. Row id in File1 matches the column id in file2 (starting from column7 )except the last 2 characters. File1 has 50 rows and File 2...

    Started by Akang‎, 03-07-2016 06:28 PM
    multiplication, textfiles
    • Replies: 4
    • Views: 370
    03-08-2016, 11:13 PM Go to last post

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