Grokbase Groups R r-help August 2015
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215 discussions - 724 posts

  • Hello folks, I have a couple of issues with the metafor package, specifically with the forest graphs. I am currently conducting a Meta-Analysis in economics throughout the metafor package. My ...
    Marco ColagrossiMarco Colagrossi
    Aug 24, 2015 at 2:03 pm
    Sep 1, 2015 at 2:49 pm
  • Hello All, As i am a newbie in R so most of you would have seen this question zillion times. I searched for the answer on this forum as well on other various forums however could not find the answer ...
    Shivi82Shivi82
    Aug 18, 2015 at 12:41 pm
    Aug 22, 2015 at 2:33 pm
  • Dear list members, I have a loop where I want to do several calculations for different samples and save the results for each sample. These samples are for each loop different. I want to use the "i" ...
    Janka VanschoenwinkelJanka Vanschoenwinkel
    Aug 11, 2015 at 12:38 pm
    Aug 23, 2015 at 5:25 pm
  • Good morning, I would like to know how often per year is a new full version release of R. Thanks -- Djoss? Parfait BODJRENOU Chef de la Division Centralisation et Analyse des Donn?es Statistiques ...
    Djossè ParfaitDjossè Parfait
    Aug 5, 2015 at 9:55 am
    Aug 6, 2015 at 4:29 pm
  • Hi R developers, I am looking for a R version of Matlab function lsqlin. I came across R pracma package which has a lsqlin function. Compared with Matlab lsqlin, the R version does not allow ...
    Wang, Xue, Ph.D.Wang, Xue, Ph.D.
    Aug 24, 2015 at 1:48 pm
    Sep 4, 2015 at 11:46 am
  • Thank you very much to all for all your responses. @Dr. Winsemius, E[f(X)] =f(E(X)) if f is convex. Now we know |x| is convex function, so clearly in this scenario if we compute the expectation of ...
    Shant ChShant Ch
    Aug 30, 2015 at 3:41 pm
    Aug 31, 2015 at 2:17 am
  • Hi there, I have a matrix contain 0,1,2, NA elements. I want to add a column to this matrix with name of "idx" . then for each row, I should put 1 in this column (idx) if there is at least one 2 in ...
    Lida ZeighamiLida Zeighami
    Aug 10, 2015 at 8:11 pm
    Aug 13, 2015 at 5:31 pm
  • Dear All, I would like to build a model, based on survival analysis on some data, that is able to predict the /*expected time until death*/ for a new data instance. Data For each individual in the ...
    survivalUsersurvivalUser
    Aug 17, 2015 at 7:10 pm
    Aug 18, 2015 at 8:58 pm
  • Hi, I would like to download data from below page directly onto R. http://www.nseindia.com/live_market/dynaContent/live_watch/equities_stock_watch.htm Could you please assist me how can I do that ...
    Christofer BogasoChristofer Bogaso
    Aug 25, 2015 at 6:10 pm
    Aug 25, 2015 at 8:07 pm
  • Hi all, This is a process question. How do folks efficiently identify column numbers in a dataframe without manually counting them. For example, if I want to choose columns from the iris dataframe I ...
    Sam AlbersSam Albers
    Aug 25, 2015 at 3:17 pm
    Aug 25, 2015 at 6:07 pm
  • Dear All, I?m running a glm with poisson errors and have a doubt when ploting the predicted values. One of my variables has a positive slope in the summary output, but when I plot the predicted ...
    Joaquín AldabeJoaquín Aldabe
    Aug 19, 2015 at 3:54 pm
    Aug 21, 2015 at 5:39 pm
  • To whom it may concern, I have tried to plot some numbers against time with the time on the X-axis shown as "Jan", "Feb", etc. I used the following commands: Raw<-structure(list(Date = ...
    Christine LeeChristine Lee
    Aug 18, 2015 at 4:15 am
    Aug 18, 2015 at 2:56 pm
  • Hi All, let?s assume I have a vector of letters drawn only once from the alphabet: x = sample(letters, 15, replace = F) x [1] "z" "t" "g" "l" "u" "d" "w" "x" "a" "q" "k" "j" "f" "n" ?v" y = ...
    Federico CalboliFederico Calboli
    Aug 6, 2015 at 10:25 am
    Aug 8, 2015 at 6:21 pm
  • Folks, I am using the UScensus2010 package and I am trying to figure out the number of households per census block. There are a number of possible data downloads in the package but apparently I am ...
    Keith S WeintraubKeith S Weintraub
    Aug 3, 2015 at 3:55 pm
    Aug 4, 2015 at 8:30 pm
  • I have an issue ans i posted it , so i would like to receive a solution please On Mon, Aug 31, 2015 at 8:35 PM, shawin [via R] wrote: -- View this message in context ...
    ShawinShawin
    Aug 31, 2015 at 7:46 pm
    Sep 2, 2015 at 6:04 am
  • Dear all, I am trying to do a fishers test on a 5x4 table on R statistics. I have already done a chi squared test using Minitab on this data set, getting a result of (1, N = 165.953, DF 12, p 0.001), ...
    Paul brettPaul brett
    Aug 27, 2015 at 5:36 pm
    Aug 31, 2015 at 2:54 pm
  • Hi all I need to calculate the area under a curve (integral) for the following data pairs: Depth SOC 22.5 0.143 28.5 0.165 34.5 0.131 37.5 0.134 40.5 0.138 43.5 0.107 46.5 0.132 49.5 0.175 52.5 0.087 ...
    CarstenHCarstenH
    Aug 24, 2015 at 9:10 am
    Aug 25, 2015 at 6:35 am
  • Hello, I have written a R script which runs a regression of a dataset and saves the result in a csv file. Now this dataset has to be edited periodically which is done in a server. I need to run the R ...
    Swagato ChatterjeeSwagato Chatterjee
    Aug 16, 2015 at 8:17 am
    Aug 20, 2015 at 6:50 am
  • Hello, I have a quick question about the ?file=? specification for the command write.csv. When I run this command in Rstudio I do not need the ?file=? specified. For example the below command works ...
    Brittany DemmittBrittany Demmitt
    Aug 4, 2015 at 2:51 pm
    Aug 5, 2015 at 2:06 pm
  • Dear list members, I'm unable to fit a parametric survival regression using survreg() in the survival package with data in "counting-process" ("long") form. To illustrate using a scaled-down problem ...
    Fox, JohnFox, John
    Aug 29, 2015 at 5:06 pm
    Aug 31, 2015 at 3:09 pm
  • Hello R users! I am trying to create a time series in R with two variables, precipitation and wind direction vs Date/Time. I am looking for suggestions and maybe even sample code. My workbook is ...
    DJ LDJ L
    Aug 10, 2015 at 4:05 am
    Aug 26, 2015 at 9:05 pm
  • Hi! I am facing a problem in understanding the R-Code Suppose I have a dataset named- transact with its values like following: customer_ID shopping_pt record_type 10000000 1 0 10000000 2 0 10000000 3 ...
    Jhon GreyJhon Grey
    Aug 24, 2015 at 11:00 am
    Aug 24, 2015 at 5:42 pm
  • Hello I've downloaded the tar.gz file of the package "lme4" and when I use the coomand: install.packages("lme4_1.1-8.tar.gz", repos = NULL, type = "source") appears an error that suspends the ...
    Aurora GonzalezAurora Gonzalez
    Aug 13, 2015 at 2:13 pm
    Aug 17, 2015 at 11:30 am
  • Dear All, I have an observation / question about how the function length() works once package dplyr is loaded. Say we have a data.frame df with n rows and m columns. Then a way to get the number of ...
    Karl SchillingKarl Schilling
    Aug 4, 2015 at 8:50 am
    Aug 4, 2015 at 12:55 pm
  • Hi all, I've had a few years experience with R, which is why this is so frustrating, my problem seems so simple but I can't find a solution. I have a data frame in the following form ...
    Dean1Dean1
    Aug 13, 2015 at 9:30 am
    Aug 13, 2015 at 3:25 pm
  • I get this error Error in numericDeriv(form[[3L]], names(ind), env) : Missing value or an infinity produced when evaluating the model I was replace the starting value but still get error. Here is my ...
    VidyaVidya
    Aug 12, 2015 at 10:37 am
    Aug 13, 2015 at 4:02 am
  • Dear all, I'm puzzled by the behaviour of path.expand("~") In the RStudio IDE the output is [1] "C:/Users/thierry_onkelinx/Documents" In the R GUI the output is [1] "~" But I'm expecting the same ...
    Thierry OnkelinxThierry Onkelinx
    Aug 11, 2015 at 2:41 pm
    Aug 12, 2015 at 8:47 am
  • I am trying to built a simple moving average cross over strategy for backtesting. I have installed TTR and quantmod, quantstrat for that purpose. indicators. I want to know whether any inbuilt ...
    BoredstoogBoredstoog
    Aug 9, 2015 at 8:46 am
    Aug 11, 2015 at 2:49 am
  • Hello. I have "successfully" installed EDC v1.3 on linux ubuntu 14.04. I am running a 64bit machine with R 3.2.1 via Rstudio. I have tried " example1 <- EDC.get(1)" after loading the ncdf and EDCR ...
    Robert in SARobert in SA
    Aug 3, 2015 at 3:12 pm
    Aug 3, 2015 at 8:38 pm
  • I am running a simulation and need to refer to a matrix of parameters from a large object. Here is a snippet of the object structure itself: Formal class 'mi' [package "mi"] with 3 slots ..@ call ...
    Andrea LamontAndrea Lamont
    Aug 28, 2015 at 7:08 pm
    Aug 29, 2015 at 3:59 pm
  • Hello, I have a dataset of 985 genes, looks something like the ones below. I want to label only those with the high intensities, since labeling all doesn't show up. Is there a way to do that? If not, ...
    AngelaAngela
    Aug 27, 2015 at 11:00 pm
    Aug 28, 2015 at 10:21 pm
  • I have imported the csv file having 398800 obs of 30 variables. There is a variable "TOTALFRT" which is showing as character in R environment. I am trying to convert it to numeric by using as.numeric ...
    Arun84441Arun84441
    Aug 26, 2015 at 8:30 am
    Aug 27, 2015 at 12:25 am
  • Hi All, I am using dplyr package and need to find total bills booked grouped on a date level however my date is integer. In the code below i was trying to change date format from integer. However it ...
    Shivi82Shivi82
    Aug 22, 2015 at 7:43 am
    Aug 25, 2015 at 4:16 am
  • Hi,I would like to get some help in plotting over an image. I have a png image over which I would like to have a plot. I would like to be able to control the location, area and orientation of the ...
    RaviRavi
    Aug 21, 2015 at 2:30 pm
    Aug 25, 2015 at 1:36 am
  • Hi, I?m starting to work my way through ?Machine Learning With R? by Brett Lantz. Running on Mac OS X 10.10.4 I?ve downloaded and installed R and the R Console comes up fine. Whenever I use the ...
    Peter WicherPeter Wicher
    Aug 20, 2015 at 4:13 am
    Aug 21, 2015 at 6:22 am
  • Hallo. I use RStudio. Because of a bug in the latest CRAN version of dplyr, I installed the GitHub version with install_github(). Now I wonder what happens when there is a new version. Does RStudio ...
    Michal KvasničkaMichal Kvasnička
    Aug 18, 2015 at 8:43 am
    Aug 18, 2015 at 5:56 pm
  • Hi, I'm running R 3.2.1 and im having an unexpected problem... when I run the follwing code it returns an error library(stringr) str_extract("+proj=utm +zone +datum=WGS84 +units=m +no_defs ...
    Mauricio RomeroMauricio Romero
    Aug 13, 2015 at 6:55 pm
    Aug 13, 2015 at 9:22 pm
  • ############################################################################### # Clear memory and set the working directory and the seed ...
    Rosa OliveiraRosa Oliveira
    Aug 10, 2015 at 11:44 pm
    Aug 11, 2015 at 9:53 pm
  • Hi After launching newly-installed R 3.2.1 (on Windows 7), I run the following two commands: I would like the startup working directory to be that pointed to by R_USER. I don't have administrative ...
    Mauricio CornejoMauricio Cornejo
    Aug 7, 2015 at 4:31 pm
    Aug 10, 2015 at 11:11 am
  • ?? Hello all, ?? I am doing some Bonferroni correction analyses with R.adjust function. I have a spreadsheet with 24 columns, each with 5 values. When I use the "holm" method, it gives me adjusted ...
    Iker Vaquero AlbaIker Vaquero Alba
    Aug 6, 2015 at 5:20 pm
    Aug 7, 2015 at 2:57 pm
  • Hi. I have a matrix like this ...
    Rodrigo DíazRodrigo Díaz
    Aug 4, 2015 at 8:50 pm
    Aug 4, 2015 at 11:58 pm
  • Dear All, I am performing some simulations for a new model. I run about 10,000 iterations with a sample of 50 datasets and this returns one set of 50 simulated data. Now, what I need to obtain is 10 ...
    Christopher KelvinChristopher Kelvin
    Aug 1, 2015 at 1:36 am
    Aug 1, 2015 at 4:16 pm
  • Dear all, I am trying to estimate VBGF parameters K and Linf using non linear regression and nls(). First I used a classic approach where I estimate both parameters together as below with "alkdyr" ...
    Xochitl CORMONXochitl CORMON
    Aug 18, 2015 at 4:08 pm
    Sep 8, 2015 at 4:40 pm
  • Hello, How can I convert date-time in which month and day have non zero padding? For example: "2015119_06" ("2015-01-19 06:00") Thanks Dominic [[alternative HTML version deleted]]
    Dominic RoyeDominic Roye
    Aug 31, 2015 at 8:11 pm
    Sep 1, 2015 at 1:34 am
  • i have a text file with data of the given format: white snow lived snow in snow lived place in place a place called place as place here i have to find the frequency of the terms only in the first ...
    Agrima sethAgrima seth
    Aug 28, 2015 at 11:49 am
    Aug 31, 2015 at 6:08 am
  • Dear all, Can anyone help me to change the maximum likelihood of multinomial logic model in R? Thanks
    Alaa SindiAlaa Sindi
    Aug 28, 2015 at 6:00 pm
    Aug 28, 2015 at 8:31 pm
  • Greetings, I am an (very) grateful user of Rcpp. As such I defined a function // [[Rcpp::export]] NumericVector leftShift(NumericVector x){ for(int i=0;i<n-1;i++) x[i]=x[i+1]; return x; } expecting ...
    Michael MeyerMichael Meyer
    Aug 27, 2015 at 10:37 am
    Aug 28, 2015 at 3:15 pm
  • Hi, xyplot(threshold ~ age |frequency.a, data=rage, groups=HL, cex=0.5, layout=c(7,4), par.strip.tex=list(cex=0.8), xlab="Age (years)", ylab="Threshold (dB SPL)", na.rm="TRUE", ...
    Sumitrajit DharSumitrajit Dhar
    Aug 28, 2015 at 4:11 am
    Aug 28, 2015 at 2:31 pm
  • Hello Team, Platform:Windows 7 32-bit R Version:3.2.2 I have two vectors as follows When I trying a paste function I am getting result as [1] "aa aa" "bb bb" "cc cc" "dd dd" "ee aa" I don't need the ...
    Preeti ranjan PradhanPreeti ranjan Pradhan
    Aug 26, 2015 at 10:43 pm
    Aug 27, 2015 at 2:35 pm
  • Hello, I am trying to cluster multivariate time series with the R package TSclust. I have a dataset of 45 companies with 10 years information on 6 variables. I understand from the TSclust package ...
    GloriaSolanoGloriaSolano
    Aug 26, 2015 at 8:02 am
    Aug 27, 2015 at 12:32 pm
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