similar to: Intra-observer reliability

I am facing a problem in merging two datasets. I have given codes to the names which are common in both the datasets and also to those which are uncommon. When I gave gave the following command merge(df1,df2) only those rows and columns were merged which were having common codes. When I viewed the results, only common codes are seen and the remaining entries are not seen. Can anyone guide me

Hi, I have imported one dataset in R. I want to calculate the percentage of missing values for each month (May 2006 to March 2007) for each variable. Just to begin with I tried the following code : *for(i in 1:length(dos)) for(j in 1:length(patientinformation1) if(dos[i]=="May-06" && patientinformation1[j]=="") a <- j+1 a* The above code was written to calculate

Hi, I have a dataset in which there are in all 250 variables and for each variable the data is entered over the months. I need to calculate the percentage of missing values for each variable over each month and then plot a graph for that. I am running the following code for doing the same *ds <- read.csv(file="filepath", header=TRUE) attach(ds) may <-

Hi, I am running Ubuntu on my Windows OS through VMware. I am trying to install R in Ubuntu, but not getting with those commands, which are there on the site. Can anyone please tell me how to install it, stepwise, with commands to be used. As I m new to Ubuntu as well, I am not aware of the commands very well. Thanks, Shreyasee [[alternative HTML version deleted]]

Hi, I want to create a new vignette and include it in an already existing package. That package has already many vignettes which are related to the chapters from the book on which the package is built. It would be a great help if anyone could help to understand how to create vignette for a statistical test like Chi-Square test. Thanks, Shreyasee [[alternative HTML version deleted]]

Hello, I am having a dataset in which the values range from 0 - 700000. When I tried to plot a scatterplot using following command plot(x,y) I got the plot where the x-axis and y-axis were displayed as 0e+00, 1e+05, 2e+05, ....... I saw the dataset, but there is no erroneous value. Can anybody guide me on this? Thanks, Shreyasee [[alternative HTML version deleted]]

Hi r-users, I want to use the sn package but I got the following message: > install.packages(repos=NULL,pkgs="c:\\Tinn-R\\sn_0.4-12.zip") Warning: package 'sn' is in use and will not be installed updating HTML package descriptions I did tried to do it a few times but it gives the same message.  ________________________________ From:

On Thu, Mar 16, 2017 at 03:50:51PM +0100, Peter Krempa wrote: > On Thu, Mar 16, 2017 at 14:42:30 +0000, Daniel Berrange wrote: > > On Thu, Mar 16, 2017 at 01:46:38PM +0100, Peter Krempa wrote: > > > On Mon, Feb 27, 2017 at 16:41:28 +0100, Francesco Romani wrote: > > [...] > > > > In general I don't have a problem with this and if it would make the >

Dear All, I have a csv file which has total 510 records and 15 variables. I am trying to write a code which will return me for each record which variable is missing. For e.g. If for record 1, variables 8 & 9 are missing, the R code should return me that. In similar way I need to find the missing variables for each record. It would be a great help if anybody can explain me how should I

Hi, I have a dataset and calculated the time difference between two time variables. The output is somewhat like *"1/29/2324 1:57:39 AM".* I want to plot a histogram for this variable. When I gave *hist()* command it returned an error saying *"Error in hist.default(num) : 'x' must be numeric"* Can anybody guide me on this as to how should I plot the histogram for this?

Hello, I am working on "tm" package. I have 2 pdf files saved in the directory D:/Files I issued the following commands (marked in red bold) for which I got some errors and warnings (marked in bold) *surgj <- Corpus(DirSource("D:/Files"), readerControl = list(language = "ansi"))* *Warning messages: 1: In readLines(y, encoding = x$Encoding) : incomplete final

On Thu, Mar 16, 2017 at 04:17:51PM +0100, Peter Krempa wrote: > On Thu, Mar 16, 2017 at 14:52:47 +0000, Daniel Berrange wrote: > > On Thu, Mar 16, 2017 at 03:50:51PM +0100, Peter Krempa wrote: > > > On Thu, Mar 16, 2017 at 14:42:30 +0000, Daniel Berrange wrote: > > > > On Thu, Mar 16, 2017 at 01:46:38PM +0100, Peter Krempa wrote: > > > > > On Mon, Feb

Dear R users I use Windows XP, R2.5.1 (I have read the posting guide, I have contacted the package maintainer first, it is not homework). In a research project on renal cell carcinoma we want to compute Harrell's c index, with optimism correction, for a multivariate Cox regression and also for some univariate Cox models. For some of these univariate models I have encountered an error

Dear R users The following function is R code for the main compuations in the article: M. Eliasziw, S Lorraine Young, M Gail Woodbury and Karen Fryday-Field (1994): Statistical Methodology for the Concurrent Assessment of Intrarater and Intrarater Reliability: Using Goniometric Measurements as an Example. Physical Therapy 74 (8); 777-788 The function gives the estimated inter- and intrarater

hi all what about this... I just put together a box on a web shop (komplett.no) that will cost me NOK ~1850 (? 216) plus a small ?50 drive and cables, so say ?300. This consists of a cheap MB with a duron 1400, 256MB SDRAM and two HFC-PCI cards (if capijod will finish off the zaptel-driver soon). This is all in a cheap PC case. What do you think? Should this be doable? as a product? With only IP

For using SSDs: Are there any format/mount parameters that should be set for using btrfs on SSDs (other than the "ssd" mount option)? General questions: How long is the ''delay'' for the delayed alloc? Are file allocations aligned to 4kiB boundaries, or larger? What byte value is used to pad unused space? (Aside: For some, the erased state reads all 0x00, and for

On Thu, Mar 16, 2017 at 14:52:47 +0000, Daniel Berrange wrote: > On Thu, Mar 16, 2017 at 03:50:51PM +0100, Peter Krempa wrote: > > On Thu, Mar 16, 2017 at 14:42:30 +0000, Daniel Berrange wrote: > > > On Thu, Mar 16, 2017 at 01:46:38PM +0100, Peter Krempa wrote: > > > > On Mon, Feb 27, 2017 at 16:41:28 +0100, Francesco Romani wrote: [...] > The scenario where

I'm new in both R and statistics. I "did my homework", I tried the archives and whatever I managed to get from the sources, but still I need assistance with the plsr package. I have a model with 2 core determinants D1 and D2, made by 3 indicators each (D1a,D1b,D1c and so on). Also I have 2 moderating variables (m1,m2), where m1 moderates D1 and m2 modarates D2. The dependent

Hi, This is probably really simple, but I am clearly not R-minded, I have read the help files, and reread them, and I still can't work out what to do... I have a data frame (d) with 3 columns (age (0-5), quarter (1-4) and x). I want to estimate the precision of my mean x by age and quarter, so I want to carry out a bootstrap for each group. I am trying to do this within a loop, so I don't

Is there a function that calculates the inter-rater agreement index (kappa) in R? Thanks ../Murli [[alternative HTML version deleted]]