similar to: Row-wisely converting a data frame into a list

----Original Message----- From: Martyn Plummer [mailto:plummerm at iarc.fr] Sent: Thursday, January 12, 2017 3:36 AM To: Weiner, Michael <weinerm at ccf.org>; r-sig-fedora at r-project.org Subject: Re: [R-sig-Fedora] rgl >One possibility is that you have the 32-bit version of mesa-libGL-devel installed. This will provide the headers but not the 64-bit l>ibrary which is what you need

Does anyone have any experience retrieving latitutde and longitude for an address from the Google Maps API? I'd like to have an R script that submits a street address, city, state, and zip code and returns the coordinates. So far, I've been submitting the coordinates from another program, then loading the coordinates in R and merging them back into the data frame I want to use.

R community: Hello, I would to like to convert a character date variable from %m/%d/%Y to %m/%d/%y. Any advice would be greatly appreciated. I have tried functions for changing the formatting and removing the unnecessary digits without success. Mike

Hi, I have a n*m matrix and would like to count the number of elements not equal to NA in a ROW. e.g. x 1 2 3 NA 10 y 2 NA 8 9 NA Which function can I use to obtain "4" for row x and "3" for row y? Could you help me? I found some functions for columns but not for rows... Thank you very much!

Hi all, I have a matrix named x with N by C I want to select every 5 th rrow from matrix x I used the following code n<- nrow(x) > for(i in 1: n){ + b <- a[i+5,] >b } Error: subscript out of bounds Can any body point out the problem? [[alternative HTML version deleted]]

Dear R people, I do not have much knowledge about linear algebra but currently I need to understand what the function qr.qty is actually doing. The documentation states that it calculates t(Q) %*% y via a previously performed QR matrix decomposition. In order to do that, I tried following basic example: m<-matrix(c(1,0,0,0,1,0,0,0,1,0,0,1),ncol=3) # 4x3 matrix

Has anyone ever tried putting a circle around a letter or a number in a plot title? For instance, if I have a plot title "Scatterplot for Subject 24", I want to put a circle around 24 to distinguish that plot from the other 30 I've generated. Any tips or ideas beyond plotting a circle in the margin? Benjamin Benjamin Nutter | Biostatistician | Quantitative Health

I have a Fedora linux 24 64bit workstation I am trying to install rgl on and I keep running into this error: trying URL 'https://cran.cnr.berkeley.edu/src/contrib/rgl_0.97.0.tar.gz' Content type 'application/x-gzip' length 2369444 bytes (2.3 MB) ================================================== downloaded 2.3 MB * installing *source* package 'rgl' ... ** package

Hi, I would like to extract the last row of each group in a data frame. The data frame is as follows Name Value A 1 A 2 A 3 B 4 B 8 C 2 D 3 I would like to get a data frame as Name Value A 3 B 8 C 2 D 3 Thank you for your suggestions in advance Jeff

Dear all, I used cph() function from Frank harrell's Design package to create a survival model, then used functions 'Function' and 'sascode' to generate prediction equation based on the saved survival model. But it failed. I included a stratified variable in the model. If I removed the stratification, they were working well. Does that mean that function 'Function'

-----Original Message----- From: Tom Callaway [mailto:tcallawa at redhat.com] Sent: Thursday, January 12, 2017 8:25 AM To: Weiner, Michael <weinerm at ccf.org>; r-sig-fedora at r-project.org Subject: Re: [R-sig-Fedora] rgl On 01/12/2017 08:01 AM, Weiner, Michael wrote: > I resolved this by reinstalling mesa-libGL (dnf reinstall libGL) seems /lib64/libGL.so.1.2.0 was missing off the

Hi everyone, I have just started using R, and I have a simple question. How can I get the Standard deviation for rows. basically I am looking for something like "rowMeans()" but for Standard deviation (I tried "rowSds()" didn't exist) Thanks, -- View this message in context: http://www.nabble.com/Standard-deviation-for-rows-tp19998106p19998106.html Sent from the R

-----Original Message----- From: Weiner, Michael Sent: Thursday, January 12, 2017 7:46 AM To: r-sig-fedora at r-project.org Subject: RE: [R-sig-Fedora] rgl -----Original Message----- From: Martyn Plummer [mailto:plummerm at iarc.fr] Sent: Thursday, January 12, 2017 7:41 AM To: Weiner, Michael <weinerm at ccf.org>; r-sig-fedora at r-project.org Subject: Re: [R-sig-Fedora] rgl >>

I have successfully completed building a package to contain the functions I commonly use. However, I need to have other packages installed in order for some of my functions to work. I've been studying the instructions on installing packages for about a month now, but still haven't figured this one out. From what I do understand, to import additional packages I need some combination of

-----Original Message----- From: Martyn Plummer [mailto:plummerm at iarc.fr] Sent: Thursday, January 12, 2017 7:41 AM To: Weiner, Michael <weinerm at ccf.org>; r-sig-fedora at r-project.org Subject: Re: [R-sig-Fedora] rgl >> configure:4429: checking for glEnd in -lGL >> configure:4454: gcc -o conftest -g -O2??-DHAVE_PNG_H >> -I/usr/include/libpng16??conftest.c

Dear all, I'm trying to select from a dataframe all rows which correspond to a factor (the id variable) for which there exists at least one positive value of a certain variable. As an example: x <- data.frame(matrix(c(rep(11,4),rep(12,3),rep(13,3),rep(0,3),1,rep(0,4),rep(1,2)),ncol=2)) > x X1 X2 1 11 0 2 11 0 3 11 0 4 11 1 5 12 0 6 12 0 7 12 0 8 13 0 9 13 1 10

I am in the process of switching from SAS over to R. I am working on very large CSV datasets that contain vehicle information. As I am processing the data, I need to select the first (or sometimes the second) record (by date) for any records that have the same license plate number. In SAS, there is a function called 'first.' that can be used on sorted datasets to pull out those first

I am trying to find a DVD iso that is not a torrent, and looking through the mirrors I am unable to find one. Does anyone happen to have a mirror or repository that they know of that carries the DVD iso for direct download? I am behind a pretty strict firewall and am unable to do torrents. Thanks in advance Michael Weiner =================================== Please consider the environment

Hello, Can anybody help me to find out which colors are used automatically when calling barplot (e.g. 3 series beside each other will get different gray values). I want to apply a legend but I don't know the colors used... Antje

I have a data.frame object like: > data.frame(x=c('A','A','B','B'), y=c('Ab','Ac','Ba','Bd')) x y 1 A Ab 2 A Ac 3 B Ba 4 B Bd how could I create a tree structure object like this: |---Ab A---| _| |---Ac | | |---Ba B---| |---Bb Thanks, Zech [[alternative HTML version deleted]]