Grokbase Groups R r-help April 2015

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265 discussions - 937 posts

  • Hello! I have a cbind type question, please: Suppose I have the following: dog <- 1:3 cat <- 2:4 tree <- 5:7 and a character vector big.char <- c("dog","cat","tree") I want to end up with a matrix ...
    Erin HodgessErin Hodgess
    Apr 23, 2015 at 10:41 pm
    Apr 24, 2015 at 9:34 am
  • Windows 7 64-bit R 3.1.3 RStudio 0.98.1103 I am trying to generate a list of length 4n which consists of the integers 1 to n repeated in groups of four, i.e. 1,1,1,1, 2,2,2,2, 3,3,3,3, . . . . , ...
    John SorkinJohn Sorkin
    Apr 19, 2015 at 3:12 am
    Apr 20, 2015 at 10:07 am
  • Hello! Very new to R (10 days), and I've run the linear mixed model, below. Attempting to interpret what it means... What do I need to look for? Residuals, correlations of fixed effects?! How would I ...
    Joshua DixonJoshua Dixon
    Apr 27, 2015 at 12:26 am
    Apr 28, 2015 at 9:30 pm
  • The help for the cygwin port of R is buggy and hides random lines of text. Consquently, I've been relying on Google, but it is often not clear how directly relevant the info is for the specific ...
    Apr 16, 2015 at 9:02 pm
    Apr 20, 2015 at 5:05 pm
  • To whom it may help, I am new to R. I have been tring to have a lattice plot in two strip levels: 4 stations in 2 years. I type in: histogram(~Raw.no10$Width|Raw.no10$Station*Raw.no10$Year, ...
    Christine LeeChristine Lee
    Apr 6, 2015 at 11:44 am
    Apr 7, 2015 at 9:33 am
  • Hello, I'm working with ordinal logistic regression model (polr) and would like to test the proportional odds assumption. For this, I ran the binary logistic regressions with varying cutpoints on the ...
    Luciane Maria PilottoLuciane Maria Pilotto
    Apr 30, 2015 at 1:45 am
    May 5, 2015 at 12:13 pm
  • Hello,I am estimating a system of nonlinear equation where I need to stack my vector of y. I have data of about 6000units. I tried using the rbind but instead of having a vector of 1 by 18000, it is ...
    Olufemi BolarinwaOlufemi Bolarinwa
    Apr 30, 2015 at 1:56 am
    Apr 30, 2015 at 4:51 pm
  • I suspect that the answer is "no", but just in case, is there a way to have R detect the window width and wrap accordingly? I don't want to set an option every time I dock a window or shrink it. In ...
    Apr 17, 2015 at 10:52 pm
    Apr 20, 2015 at 3:04 pm
  • Hi list Using the tm package, part of the pre-processing work is to remove words, etc. from the corpus. I wish to remove people's names and also their initials which are peppered throughout the ...
    Sun ShineSun Shine
    Apr 10, 2015 at 10:19 am
    Apr 11, 2015 at 11:04 am
  • New to R. Having trouble with the xaxis in this code. The tick marks are crazy and the labels repeat. Any suggestions? par(mar=c(5,5,5,5)) ...
    Dot LundbergDot Lundberg
    Apr 15, 2015 at 12:04 am
    May 26, 2015 at 12:26 pm
  • I am trying to install R for Windows, but when I use the installer provided on CRAN, a number of third-party packages are installed by default (i.e. lattice, Matrix, codetools, etc.). If R is ...
    Elliot Joel BernsteinElliot Joel Bernstein
    Apr 9, 2015 at 1:42 pm
    Apr 10, 2015 at 9:06 am
  • Dear community, I have daily rainfall raster data for 30 years (1982_2011). I would like to aggregate daily to bimonthly raster data. Could somebody kindly help on how to go about it! Thanks for your ...
    John WasigeJohn Wasige
    Apr 5, 2015 at 9:34 am
    Apr 6, 2015 at 5:46 am
  • Hello! Please point me in the right direction. I need to match 2 strings, but focusing ONLY on characters, ignoring all special characters and punctuation signs, including (), "", etc.. For example ...
    Dimitri LiakhovitskiDimitri Liakhovitski
    Apr 20, 2015 at 1:59 pm
    Apr 20, 2015 at 3:20 pm
  • Hi, I know that one can find all occurrences of x in a vector v by doing However, if I need to do this again and again, where v is remaining the same, then this is quite inefficient. In my particular ...
    Keshav DhandhaniaKeshav Dhandhania
    Apr 6, 2015 at 8:56 pm
    Apr 17, 2015 at 4:44 pm
  • Dear all, I am used to running R locally on my Windows-based PC. Since some of my computations are taking a lot of time I am now trying to move to a remote R session on a LINUX server but I am having ...
    Michael HaenleinMichael Haenlein
    Apr 14, 2015 at 4:57 pm
    Apr 15, 2015 at 6:39 am
  • Dear R-Experts, I am trying to compute the BCa nonparametric bootstrap on regression coefficients. Here is the reproducible example : GDP.LOG <-c(14,12,13,15.5,16,17,16.5,13.5,12.5,12) Quality.score ...
    Varin sachaVarin sacha
    Apr 10, 2015 at 4:01 pm
    Apr 13, 2015 at 9:36 pm
  • I need to control of a given grid is uniform. This control using signif until now works: if (all(signif(abscissa[1:(length(abscissa) - 1) + 1] - abscissa[1:(length(abscissa) - 1)]) == ...
    Marc LamblinMarc Lamblin
    Apr 6, 2015 at 11:50 am
    Apr 7, 2015 at 8:24 am
  • Dear All, First of all, many thanks to all R contributors for a fantastic program, and especially to Hadley Wickham for creating ggplot2. The following is intended to be a warning that, if the ...
    Jeremy ClarkJeremy Clark
    Apr 30, 2015 at 12:05 pm
    May 4, 2015 at 9:10 pm
  • Hi, R users, I am using nlm function to get the MLE of parameter alpha and lambda from a parametric survival model (Weibull distribution). However, this message always came out: ' invalid function ...
    Hanze ZhangHanze Zhang
    Apr 28, 2015 at 6:43 am
    Apr 29, 2015 at 1:54 pm
  • Dear all, I have a flat file (tab delimited) derived from an excel file which is subdivided in different parts: a first part is reporting metadata, then there is a first spreadsheet indicated by [ ], ...
    Luigi MarongiuLuigi Marongiu
    Apr 20, 2015 at 7:28 am
    Apr 29, 2015 at 2:09 am
  • Hello, all: I am new here, and have a challenge to present some graphical data to the user in a convenient way. The challenge is to present a map to the user which is coloured with the value of a ...
    Antonio SerranoAntonio Serrano
    Apr 24, 2015 at 10:37 pm
    Apr 28, 2015 at 8:35 am
  • Hi, I cannot understand why rank(x) behaves as outlined below. Based on the results of first x vector values ranking, which is as expected in my opinion, I cannot explain the following results. [1] ...
    Giorgio GarzianoGiorgio Garziano
    Apr 26, 2015 at 8:17 am
    Apr 27, 2015 at 9:14 pm
  • I am a student from Sweden. I would like to download and install R program to work on statistics. If I want to download 2014 version, how I can do this. Also, do I need to choose Sweden in Cran ...
    S f jalaeiS f jalaei
    Apr 25, 2015 at 1:46 pm
    Apr 26, 2015 at 10:24 pm
  • Hi R-help, I've looked at google, the Rscript documentation and the Rscript --help output and haven't found much on this. So, here's my question: I have a rather long script that runs on various ...
    Nick MatzkeNick Matzke
    Apr 23, 2015 at 4:28 pm
    Apr 26, 2015 at 6:13 pm
  • I'm getting familiar with the stl function in the stats packcage by trying it on an example from Brockwell & Davis's 2002 "Introduction to Times Series and Forcasting". Specifically, I'm using a ...
    Apr 20, 2015 at 11:04 pm
    Apr 23, 2015 at 2:32 am
  • R 3.2.0 on Linux -------------------------------- library(tidyr) playerStats <- c("LVL 10", "5,671,448 AP l6,000,000 AP", "Unique Portals Visited 1,038", "XM Collected 15,327,123 XM", "Hacks 14,268", ...
    Arnaud gabouryArnaud gaboury
    Apr 20, 2015 at 7:10 am
    Apr 20, 2015 at 7:10 pm
  • Dear All, I have written the following lines: data<-read.table("C:\\Users\\intel\\Documents\\SIIID\\datamultiplereg.txt",header = FALSE, sep = "") ...
    Sonia AminSonia Amin
    Apr 20, 2015 at 4:33 pm
    Apr 20, 2015 at 5:48 pm
  • Hello all, I'm using a large dataset consisting of 2 groups of data, 2 columns in excel with a header (group name) and 15 000 rows of data. I would like like to compare this data, so I transform my ...
    Joachim AudenaertJoachim Audenaert
    Apr 16, 2015 at 9:36 am
    Apr 17, 2015 at 9:07 am
  • Hi, I need some help with obfuscating AES key on Windows, Linux and Mac. I have asked the same question on stackoverflow, but since I didn't receive any input I have decided to post it here too. You ...
    Luca CeroneLuca Cerone
    Apr 12, 2015 at 3:11 pm
    Apr 16, 2015 at 5:50 pm
  • "#FF00FFFF" To a vector of color names. Any tip? Thanks in advance C. [[alternative HTML version deleted]]
    Alejo C.S.Alejo C.S.
    Apr 13, 2015 at 3:28 pm
    Apr 13, 2015 at 9:45 pm
  • I have a data frame '' (see below) that contains US counties and a continuous numeric variable 'Mean.Wait' that ranges from zero to 10 or so. I also created variable 'wait' that is based ...
    Dimitri LiakhovitskiDimitri Liakhovitski
    Apr 2, 2015 at 5:03 pm
    Apr 3, 2015 at 5:41 pm
  • Dear all, ? the following example somehow uses the "old data" (X) to make the predictions, but not the new data Xnew as intended. ? y <- rnorm(100) X <- matrix(rnorm(100*10), ncol) lm <- lm(y~X) ...
    Martin SpindlerMartin Spindler
    Apr 29, 2015 at 2:21 pm
    Apr 29, 2015 at 2:59 pm
  • Hi,Why do I get this warning when I run package.skeleton() and how to solve this problem? Warning messages: 1: In package.skeleton(name = "myPackage", code_files = "~/Desktop/myPkg/R/") : ? Invalid ...
    Carol whiteCarol white
    Apr 28, 2015 at 2:05 pm
    Apr 29, 2015 at 12:00 pm
  • To cite related publications, it seems that they can't be mentioned in? DESCRIPTION. Where to mention so that it appears on the 1st page of? the pdf help file and the package main web page? I'm not ...
    Carol whiteCarol white
    Apr 28, 2015 at 5:00 pm
    Apr 28, 2015 at 9:31 pm
  • I am beginner in R doing modelling in R, I loaded excel sheet in R, i have chosen x elements and y elements then fitted model for linear and second order regression. Now I have both models. I am bit ...
    Methekar, Pushpa (GE Transportation, Non-GE)Methekar, Pushpa (GE Transportation, Non-GE)
    Apr 8, 2015 at 8:23 am
    Apr 27, 2015 at 8:15 am
  • Dear all, I am trying to plot the results of a PCR experiments that involves 384 individual plots. Admittedly the space for the plots will be tiny, but I just nedd some icon to have a feeling of the ...
    Luigi MarongiuLuigi Marongiu
    Apr 19, 2015 at 9:27 am
    Apr 23, 2015 at 2:26 pm
  • I'm following to ramp up on both time series and R. About 40% of the way down, the tutorial uses lag1.plot from astsa and lag.plot from stats. The ...
    Paul DomaskisPaul Domaskis
    Apr 18, 2015 at 2:30 am
    Apr 20, 2015 at 6:45 pm
  • Hello, I have benn problems to construct the pattern for this: municipio =='Limeira' & mesincident =='marco' & trechoklmetros 1.00 12.300 I would like: municipio =='Limeira' & mesincident =='marco' & ...
    Fernando GamaFernando Gama
    Apr 17, 2015 at 8:22 pm
    Apr 19, 2015 at 12:44 am
  • Hi there, Does anyone here know where does the R Graph Gallery ( move to? I googled, but don't find any useful hints. Any help? Thanks in advance! Best, Jinsong
    Jinsong ZhaoJinsong Zhao
    Apr 18, 2015 at 12:10 pm
    Apr 18, 2015 at 9:45 pm
  • Dear all, My name is Bilel and I'am a PhD student from Tunisia working on climate modelling. My issue today is how to add a Bravais Pearson test as a contour plot to an existing spplot map ...
    Fathalli bilelFathalli bilel
    Apr 15, 2015 at 10:15 am
    Apr 15, 2015 at 6:58 pm
  • Hello all, I am writing a script for statistical comparison of means. I'm doing many field trials with plants, where we have to compare the efficacy of different treatments on, different groups of ...
    Joachim AudenaertJoachim Audenaert
    Apr 14, 2015 at 8:07 am
    Apr 15, 2015 at 12:25 pm
  • Hello, I have a large dataframe (windHW) of wind speeds (ws) at each hour from many days over a set of years. Some of these values are obviously wrong (600 m/s) and I want to get rid of all the ...
    Alexandra CatenaAlexandra Catena
    Apr 10, 2015 at 8:07 pm
    Apr 13, 2015 at 8:21 am
  • Dear guRus I have xts data as: str(volsA) An ?xts? object on 2014-05-13/2015-04-07 containing: Data: num [1:221, 1:2] 18.8 18.5 18.4 22.2 22 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr ...
    Raghuraman RamachandranRaghuraman Ramachandran
    Apr 7, 2015 at 4:30 pm
    Apr 7, 2015 at 9:52 pm
  • For an edx course, MIT's "The Analtics Edge", I need to install the "caret" package that was originated and is maintained by Dr. Max Kuhn of Pfizer. So far, every effort I've made to try to ...
    Ronald WyllysRonald Wyllys
    Apr 3, 2015 at 9:07 pm
    Apr 4, 2015 at 10:17 pm
  • Greetings, I am working on a project where we are applying the Kruskal-Wallace test to some factor data to evaluate their correlation with existing grade data. I know that the grade data is nonnormal ...
    Collin LynchCollin Lynch
    Apr 2, 2015 at 2:25 pm
    Apr 3, 2015 at 9:17 pm
  • I have been doing other things, but want again to learn R. First some code: #try 2 axes at bottom x1 <- c(1,2,3,4,5,6,7,8,9) x2 <- c(5,1,9,6,3,7,8,2,4) plot(x1,x2,type="l") #scatter plot x1 on ...
    Apr 3, 2015 at 12:16 am
    Apr 3, 2015 at 3:47 pm
  • Dear all, I need to make a heapmap of SPI results for a monthly timeseies of 30 years. Does anybody know to do it? Thanks for your help John [[alternative HTML version deleted]]
    John WasigeJohn Wasige
    Apr 28, 2015 at 7:40 am
    May 22, 2015 at 11:45 pm
  • Dear R users I'm trying to do a RDA analysis based on Borcard et al. 2011 Numerical Ecology with R examples. What I cannot understand is why when I run the script (RDA.R) using the dataset from book ...
    Antonio SilvaAntonio Silva
    Apr 3, 2015 at 11:08 pm
    May 12, 2015 at 8:10 am
  • I recently upgraded to *R-3.2.0* from *R-2.14.1* on *Ubuntu 12.04 LTS.* I have been *trying to install some add-on packages* (that weren't installed in the earlier version of R) to R-3.2.0. *but to ...
    Anirudh JayaramanAnirudh Jayaraman
    Apr 30, 2015 at 6:12 pm
    Apr 30, 2015 at 9:31 pm
  • Hello, I need some help with a project that I?m working one. Im trying to make a l regression model (lm) in r with time as independant variable and gas prices as the depended. But It seems like ...
    Livia Maria VestergaardLivia Maria Vestergaard
    Apr 29, 2015 at 10:26 am
    Apr 30, 2015 at 8:33 am
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