similar to: read table

Dear list, I want the 1st, 2nd, 5th, and 6th columns of mtcars. After copying them, the columns become numeric class rather than data frame. But, when I copy rows, they data frame retains its class. Why is this? I don't see why copying rows vs columns is so different. > class(mtcars) [1] "data.frame" > head(mtcars) mpg cyl disp hp drat wt qsec vs

Before I go and do this another way - can I check if anyone has a way of looping through data in odfWeave (or possibly sweave) to do a repeating analysis on subsets of data? For simplicity lets use mtcars dataset in R to explain. Dataset looks like this: > mtcars mpg cyl disp hp drat wt ... Mazda RX4 21.0 6 160 110 3.90 2.62 ... Mazda RX4 Wag 21.0 6 160 110 3.90

On Thu, 1 Jun 2017, POLWART, Calum (COUNTY DURHAM AND DARLINGTON NHS FOUNDATION TRUST) via R-help wrote: > Before I go and do this another way - can I check if anyone has a way of > looping through data in odfWeave (or possibly sweave) to do a repeating > analysis on subsets of data? > > For simplicity lets use mtcars dataset in R to explain. Dataset looks like this: >

Dear all, What is the quickest and most efficient way to diff two data frames, so as to obtain a vector of indices (or logical) for rows/columns that differ in the two data frames? For example, > Xe <- head(mtcars) > Xf <- head(mtcars) > Xf[2:4,3:5] <- 55 > all.equal(Xe, Xf) [1] "Component 3: Mean relative difference: 0.6863118" [2] "Component 4: Mean relative

Dear R-help This is a follow-up to my previous post here: http://groups.google.com/group/r-help-archive/browse_thread/thread/d9b6f87ce06a9fb7/e9be30a4688f239c?lnk=gst&q=dobomode#e9be30a4688f239c I am working on developing an open-source automated system for running batch-regressions on very large datasets. In my previous post, I posed the question of obtaining VIF's from the output of

Dear listers, The following command (derived from the example in the ?stars help page) works : data(mtcars) stars(mtcars[, 1:7]) But the following gives an error: stars(mtcars[1, 1:7]) Error in s.y[i, ] : incorrect number of dimensions I was expecting to have the star graph for the first line (Mazda Rx4) The following give an incorrect graph for the first two cars : stars(mtcars[1:2, 1:7])

Dear all; I need to run heatmap. Because my first column in my data is alphanumeric, I can not run as.matrix(scale(my_data)). So I need to make my data readable as in data(mtcars). In *mtcars *data the first column is alphanumeric and has no name. Thanks, Greg [[alternative HTML version deleted]]

Hello, I know it''s off-topic. But I''m sure you are using SQL and can help me ;) I''ve a table CARS and a table KEYS and a LOCKS table. CARS id|name 1|audi 2|ford 3|mazda 4|porsche ... KEYS id|car_id|lock_id 1|1|1 2|2|1 3|2|2 4|3|1 5|3|2 6|4|1 7|4|2 8|4|3 ... LOCKS id|name 1|main 2|spare 3|engine ... A car can have many keys. Keys are for different locks. How can I

Hi. I have been looking at the PCAproj function in package pcaPP (R 2.4.1) for robust principal components, and I'm trying to interpret the results. I started with a data matrix of dimensions RxC (R is the number of rows / observations, C the number of columns / variables). PCAproj returns a list of class princomp, similar to the output of the function princomp. In a case where I can

Is there a bug in tiff compression output in Mac version? My program is correct when I run on windows version; However, in Mac, the compression fail~ [[alternative HTML version deleted]]

Hello all, I was wondering if anyone knew how to construct a multiple line graph on R, where there are 2 (or more) sets of data points plotted against some x axis of data, and you can draw a line on the graph connecting each set of data points. For example: A B C D 0.6566 2.1185 1.2320 5 0.647 2.0865 1.2325 10 0.6532

both of my other servers its owned by exim, the permissions in the other two servers are 644, and dovecot starts just fine on those, I don't know what happened I updated my server from opensuse 12.1 to 13.2 and now dovecot is refusing to start.> From: alvin.sm at Mail.Linux-Consulting.com> Subject: Re: help, permissions issues> To: dovecot at dovecot.org> Date: Mon, 27 Jul 2015

> > Offlist/OT - Sheer guess, straight out of my parts - maybe a cronjob to > rebuild the locate db or something similar is hammering it once a week? In the problem condition, there appears to be very little going on on the system. eg., root at server5:/tmp# /usr/local/bin/top last pid: 3828; load avg: 4.29, 3.95, 3.84; up 6+23:11:4407:12:47 79 processes: 78 sleeping, 1 on

Thankyou the information provided was informative to say the most. Quote "Shorewall Masqurading made simple ?" I will not comment any futher about my simple question as I see nothing but backtracking information. Maybe all the usless information is somthing to do with the below, Linux how it works! First you must remember that 98% of linux programmers are kids or they have been

Sorry mistake from me. This was another problem in my mind , but with RMySQL. Christian > library(RMySQL) > library(sqldf) > sqldf("Select * from mtcars") Fehler in mysqlNewConnection(drv, ...) : RS-DBI driver: (Failed to connect to database: Error: Access denied for user 'user'@'localhost' (using password: NO) ) Fehler in if (dbname ==

environment: Locomotive + Rails 1.0 Max Lighttpd 1.4.8, FastCGI 2.4.0 Ruby 1.8.2 File_column version: 0.3.1 Path to file_column: /vendor/plugins/file-column/ symptom: Uploading a file using file_column fails; no file is uploaded and the "filename" column remains blank. No error messages are produced - a new record is created with blank filename. code and log here:

Hey everyone I've tried changing the permissions with the file it is telling me is giving me the issue, restarted exim and the computer, but still can't get dovecot to start. 2.2.13 > dovecot -F doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 14: ssl_cert: Can't open file /etc/exim/openssl/exim.crt: Permission denied > dovecot -n # 2.2.13:

Hi All, suppose this call flow: there are two Asterisk servers, they are connected through a IAX2 trunk. The users use SIP. The user A on the Asterisk server 1 calls the user B on the Asterisk server 2. They talk for a while and then the user B does an attendant transfer to the user C on the Asterisk server 1. Question: is it possible to optimize the voice flow or the music on hold flow so

-------- Original Message -------- Subject: Re: [CentOS] Automounting a USB drive From: Fred Smith <fredex at fcshome.stoneham.ma.us> Date: Sun, February 12, 2017 9:52 pm To: centos at centos.org On Sun, Feb 12, 2017 at 06:19:34PM -0700, tdukes at palmettoshopper.com wrote: > > Hello, > > Been try to use autofs to mount and unmount a usb flashdrive. I've never had to do

On Mon, 27 Mar 2006, Andrew Lenharth wrote: >> Another option is to build an optimized build with assertions on. Do to >> local demand, I added a build option 'make ENABLE_OPTIMIZED=1 >> ENABLE_ASSERTIONS=1' that provides this. > > How does this compare size and performance wise with a debug build or a > release build? I haven't done any scientific