similar to: Convert "ragged" list to matrix

Hello, I have a dataset which consists of 9 columns (variables) and 35 rows (observations). I am doing a simple linear regression of one variable on the other. There are some observations that are outliers and I would like to remove them based on another variable (it's a unique, numeric variable). How do you tell R to remove multiple rows (observations) based on a variable value?

Hi, I've been using the chron package to convert excel time into month/day/year and h:m:s formats, specifically for use as axis labels. I've come across something I don't quite understand. ### Here are some excel times: dat = c(39083, 39083.00694, 39083.01389, 39083.02083, 39083.02778, 39083.03472, 39083.04167, 39083.04861, 39083.05556, 39083.0625 ) ### I create

Hi, I'm having trouble using dates (created using library(chron)) as groupings for a boxplot. I have 10 repeat measurements of a variable within an individual day. The measurements were done over 10 days. I would like to plot the measurements as a box and wisker plot (using boxplot or something similar) where the days (as chron object) would be the grouping and the repeated measurements

Hi, I'm fairly new to R, so hopefully this is an easy question... On a plot, I would like to have the y label read: "Response(phi)" with phi = the greek character. From old posts I've found this: title(ylab=expression(paste("Response (", phi, ")"))) This displays nicely, but in the default font. I would like to use font=6 (which is the font of the other

Afternoon everyone, I''ve spent the last week or so looking at all the experimental design packages I can find in R. AlgDesign, design.conf and BHH2 being the best one I could find. Unfortunately none of these do a particularly good job for complex designs, in particular for conjoint or discrete choice. (or perhaps they do, and I can''t make them work correctly)

is there any way to Form.reset (clear all fields of the form ) in form_remote_tag generated form? I want to reset fields after ''submit'' in .rjs. -- Hiroshi Takagi <gollum-u1eKKkw+WM0gE89CWYshPg@public.gmane.org>

Hi, I'm trying to manage LXC instances through OpenStack, which use libvirt as a virtualization driver layer. After launching LXC instance, I simply could not attach to the console. virsh # list Id Name State ---------------------------------- 14366 instance-00000078 running virsh # console 14366 Connected to domain instance-00000078 Escape character is ^] And it keeps

Hi all Each lxc container on node have mounted tmpfs for cgroups tree: [root-inside-lxc@tst1 ~]# mount | grep cgroups cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) cgroup on

Hi everyone, I’m trying to install reshape2. But when I click on “install package” it’s not coming up!?!?! I’m getting reshape, but no reshape2? I’ve also tried download.packages(reshape2, destdir="c:\\") & download.packages(Reshape2, destdir="c:\\")…but no luck!!! Does anyone have any ideas what could be going on? Chris Howden Founding Partner Tricky

Hi there, Do you know if there is a way to modify how libvirt interacts with the cgroup? Because, I successfully add the /dev/net/tun support in my LXC container by doing: echo c 10:200 rwm >> /cgroup/libvirt/lxc/instance-00000005/devices.allow But when I restart the instance/LXC container, this option has gone. How can I make this persistant? Is there a configuration file? Thanks

Hi there, I am using libvirt with lxc to create fedora 16 & 18 containers on fedora 18 host. first I did the setup with libvirt 1.0.3 and everything worked fine, then after upgrading to libvirt 1.0.4, I could not create character device on the guests : Test on the guest1 : # ls -l /dev total 0 lrwxrwxrwx. 1 root root 10 Apr 17 21:18 console -> /dev/pts/0 lrwxrwxrwx. 1 root root 11

Howdy, I am playing around with asterisk within an LXC container on Ubuntu 11.04. I have asterisk (1.4.42) running fine, but want access to dahdi_dummy for timing (meetme). I have dahdi installed on the "host", and dahdi_dummy is loaded: root at astnorth:/# ls -ltr /dev/dahdi total 0 crw-rw---- 1 root root 196, 250 2011-06-08 13:59 transcode crw-rw---- 1 root root 196, 253

Hi All, I'm wanting to convert a ragged list of values into a structured matrix for further analysis later on, i have a solution to this problem (below) but i'm dealing with datasets upto 1GB in size, (i have 24GB of memory so can load it) but it takes a LONG time to run the code on a large dataset. I was wondering if anyone had any tips or tricks that may make this run faster? Below is

How can I add an extra column containing the rank to a ragged array indexed by more than one grouping factors? E.g. with the barley dataset: How can I to add an additional column ``rank'' containing the rank of the ``yield'' of the different varieties in relation to the indices ``year'' and ``site'' to the barley dataframe? I achieved to calculate the ranks with:

Hi everyone, I’m looking for a clever bit of code to replace NA’s with a specific score depending on an indicator variable. I can see how to do it using lots of if statements but I’m sure there most be a neater, better way of doing it. Any ideas at all will be much appreciated, I’m dreading coding up all those if statements!!!!! My problem is as follows: I have a data set with

Hello, I have a big problem which I’m just not able to solve. I created the following mean value from the following dataset structure: Id |value 1 | 2 1 | 3 1 | 4 2 | 2 2 | 1 3 | 5 4 | 3 etc.|etc. with the command: mean_rating <- tapply(ratok$value, ratok$project_id , mean,simplify = FALSE) this gives me a ragged array: > mean_rating [1] $`14`

I have a dataset that looks like: set.seed(144) sam<-sample(1000,100) dat<-data.frame(id=letters[1:10],value=rnorm(1000),day=c(rep(1,100),rep(2,100),rep(3,100),rep(4,100),rep(5,100))) I want to "normalise" it using the following function (unless you have a better idea...): adj.values<-function(dframe){ value_mean<-mean(dframe$value) value_sd<-sd(dframe$value)

Can anyone please suggest how I can print: a <- matrix(c( "Heading 1", "This is some info\nabout heading 1", "Heading 2", "This is some info\nabout heading 2", ), byrow=T, nrow=2) to look like: Heading 1 This is some info about heading 1 Heading 2 This is some info about heading 2 (if you're not using a fixed width

I wonder what's the right way in R to do the following -- placing objects of the same kind together in subarrays of varying length. Here's what I mean: > word <- c("a","b","c","d","e","f","g","h","i","j") > kind <- c(1,1,1,2,3,4,5,5,7,7) > d <-

Hi everyone, I’m working with some very big datasets (each dataset has 11 million rows and 2 columns). My first step is to merge all my individual data sets together (I have about 20) I’m using the following command from sqldf data1 <- sqldf("select A.*, B.* from A inner join B using(ID)") But it’s taking A VERY VERY LONG TIME to merge just 2 of the datasets