similar to: split a data frame

Hello, I'm just beginning to learn R. What books/online learning modules with datasets would you suggest? Thank you! Best wishes, Michael ____________________________________ Michael McCulloch Pine Street Clinic Pine Street Foundation 124 Pine Street, San Anselmo, CA 94960-2674 tel 415.407.1357 fax 415.485.1065 email: mm at pinest.org web: www.pinest.org

Hi, I use?R to draw my graphs. I have 100 points on a simple xy-plot. The points are distinguished by a third variable which is categorical with 10 levels. I have been plotting x against y and using gray scales to distinguish the level of the categorical variable for each point. It looks ok to me but?a journal reviewer says this is not any use. I cannot afford to pay for colour prints. Any

Thank you to all who made very helpful suggestions to get started with R. Duncan Murdoch raised an excellent question, asking about my background and reason for using R. I'm an epidemiologist, applying the marginal structural models approach (inverse probability of treatment weights) in a Cox proportional hazards analysis. The statistical program which I had been using does not have

Hello, I'm trying to put a dynamic table and a dynamic graph side by side in a pdf document using Sweave. The data.frame used to generate the table is called rg (rg.txt): "Date"; "Code"; "Data1"; "Data2" "2009-03-10";"1";1958;147 "2009-03-10";"2";302;144 "2009-03-10";"3";4;141

Hi all, sorry for my english, but I don't speak yours language. I'm trying to use bart() and rbf(). The package I'm using now is "BayesTree" and "neural", respectively. I could create the models, but I can't predict my test data. Does anyone have such an experience? Any advice is appreciated! Thank you in advanced!. Andr? -- View this message in

Sean, thanks for reminding this, Alp did commit a class derived from raw_svector_ostream conatining an internal SmallString he called small_string_ostream. The commit was reverted after a day due to a disagreement about the commit approval and apparently abandoned. http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20140623/223393.html

hi All, thanks for the responses. After being dropped into the # Filesystem repair prompt, ( on account of "inode 27344909 has illegal blocks" ) following warm reboot (via "reboot") after finding (SAN ) filesystem in read-only mode yesterday morning (possibly because of HBA fault on SAN) , I ran fsck -r /data (Linux version 2.6.18-92.1.18.el5 , Red Hat 4.1.2-42 , ext3

Hi, Which version of gluster you are using? You can find which file is that using the following command find <brickpath> -samefile <brickpath/.glusterfs/<first two bits of gfid>/<next 2 bits of gfid>/<full gfid> Please provide the getfatr output of the file which is in split brain. The steps to recover from split-brain can be found here,

Hi, I seem to have a split brain issue, but I cannot figure out where this is and what it is, can someone help me pls, I cant find what to fix here. ========== root at salt-001:~# salt gluster* cmd.run 'df -h' glusterp2.graywitch.co.nz: Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root

Dear all, Here is my code which am using to combine 5th column from different data sets. Here is the function to do my job genesymbol.append.file <-NULL gene.column <- NULL readGeneSymbol <- function(files,genesymbol.column=5){ for(i in fnames){ temp <- read.table(fnames,header=T,sep="\t",stringsAsFactors=F,quote="\"")

hello folks, Im trying to clean out a large file with data i dont need. The column im manipulating in the file is called "legal_status" There are three kinds of rows i want to remove. Those that have "Private", "Private (Op", or "Unknown" in the legal_status column. I wrote this code but i get errors and it says im missing a TRUE/ False thingy...im

Dear R-users, I have 1 remark and 1 question on the inclusion of interactions in the gam function from the gam package. I need to fit quantitative predictors in interactions with factors. You can see an example of what I need in fig 9.13 p265 from Hastie and Tibshirani book (1990). It's clearly stated that in ?gam "Interactions with nonparametric smooth terms are not fully

I tried this already. 8><--- [root at glusterp2 fb]# find /bricks/brick1/gv0 -samefile /bricks/brick1/gv0/.glusterfs/ea/fb/eafb8799-4e7a-4264-9213-26997c5a4693 /bricks/brick1/gv0/.glusterfs/ea/fb/eafb8799-4e7a-4264-9213-26997c5a4693 [root at glusterp2 fb]# 8><--- gluster 4 Centos 7.4 8><--- df -h [root at glusterp2 fb]# df -h Filesystem

Hello R-helpers, I have 10 dataframes (named data1, data2, ... data10) and I would like to add 5 new columns to each dataframe using the following code: data1$LogDepth<-log10(data1[,2]/data1[,4]) data1$LogArea<-log10(data1[,3]/data1[,5]) data1$p<-2*data1[,6]/data1[,7] data1$Exp<-data1[,2]^(2/data1[,8]) data1$s<-data1[,3]/data1[,9] ...but I would prefer not to repeat this chunk of

How can I tell if this is normal behaviour? Oracle imports are horribly slow, an order of magnitude slower than on the same hardware with a slower disk array and Solaris 9. What I can look for to see where the problem lies? The server is 99% idle right now, with one database running. Each sample is about 5 seconds. I''ve tried setting kernel parameters despite the docs saying that

I need help in subseting a dataframe: data1<-data.frame(year=c(2001,2002,2003,2004,2001,2002,2003,2004, 2001,2002,2003,2004,2001,2002,2003,2004), firm=c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4),x=c(11,22,-32,25,-26,47,85,98, 101,14,87,56,12,43,67,54), y=c(110,220,302,250,260,470,850,980,1010,140,870,560,120,430,670,540)) data1 I want to keep the firms where all x>0 (where there are

Assume that I have the dataframe "data1", which is listed at the end of this message. I want count the number of lines that each person has for each year. For example, the person with ID=213 has 15 entries (NinYear) for 1953. The following bit of code calculates NinYear: for (i in 1:length(data1$ID)) { data1$NinYear[i] <- length(data1[data1$Year==data1$Year[i] &

How do I find what "eafb8799-4e7a-4264-9213-26997c5a4693" is? https://docs.gluster.org/en/v3/Troubleshooting/gfid-to-path/ On May 21, 2018 3:22:01 PM PDT, Thing <thing.thing at gmail.com> wrote: >Hi, > >I seem to have a split brain issue, but I cannot figure out where this >is >and what it is, can someone help me pls, I cant find what to fix here. >

I have a dataset of the form below, consisting of one unique ID per row, followed by a series of visit dates. At each visit there are values for 3 dichotomous variables. Of the 8 different possible combinations of the three variables, 4 are "abnormal" and the remaining 4 are "normal". Everyone starts out abnormal, and then either continues to be abnormal at subsequent visits,

Hello everyone, I am attempting to write a function to count the number of non-missing values of each column in a data frame using the sapply function. I have the following code which is receiving the error message below. > n.valid<-sapply(data1,sum(!is.na)) Error in !is.na : invalid argument type Ultimately, I would like for this to be 1 conponent in a larger function that will produce