similar to: Loop over several variables

Why doesn't this work? #Drop a variable name from a data frame DropLikeSAS <- function(x,df) { df[[x]] <- NULL 0 } DropLikeSAS("VarName", DataFrameName) Try it. The column VarName will not be deleted from the data frame DataFrameName. But x <-

I am attempting to add a calculated column to a data frame. Basically, adding a column called "newcol2" which are the stock closing prices from 1 day to the next. The one little hang up is the name of the column. There seems to be an additional data column name included in the attributes (dimnames?). So when i run HEAD(DATAFRAMENAME) i get the column name = "Open". but

Hi, I would like to store some text and decimal values in the following form: name dec.val dec.val ... dec.val name dec.val dec.val ... dec.val ... name dec. val dec.val ... dec.val To do so, I created a matrix of the necessary size (x row per y cols) with the command matrixname <- matrix(0,x,y) and proceeded to fill in the matrix with information drawn from a data frame. The

Dear All, How can I sort a data frame (using one of the column)? Thanks for your support. Regards. Abd. Rahman Kassim (PhD) Head Forest Ecology Branch Forest Management & Ecology Program Forestry and Conservation Division Forest Research Institute Malaysia Kepong 52109 Selangor, Malaysia ***************************************** Checked by TrendMicro Interscan Messaging Security. For any

I was optimizing a 650MB using ferret (0.11.3) and I received the following error. I''ve seen some people have similar issues but I haven''t seen any resolutions. The contents of the index directory follow the error. Has anyone seen anything like this and found a resolution? Many thanks. /mnt/apps/search/releases/20070622175637/script/../config/../vendor/

The following exception occurred while trying optimize a large index: vendor/gems/rdig-0.3.4/lib/rdig/index.rb:46:in `optimize'': End-of- File Error occured at <except.c>:93 in xraise (EOFError) Error occured in store.c:216 - is_refill current pos = 0, file length = 0 Now, I get the following error any time I try to create a new index on the directory that I was trying

At this point in my lab, the only solid servers I have are Win2000. So I xcopy the distro CDs into a directory that I make available for install via ftp. Well I have had problems copying files from this distro. I had to use the /c option in xcopy to get past the problem files.. A few examples are: The following files in the image directory of disk 1 has 'File creation error - The

Hi everyone, I am new in R, just used it for 2 weeks and I have a basic question. I have data, for example table$attrib that I would like to plot its cumulative distribution in logarithmic scale. How do I do that? After browsing internet, I tested this command: > plot.ecdf(1:100, log ="y", table$attrib) I got a plot, but I am not really sure what 1:100 and log="y"did to

The net ads joins the host to the AD, but cant get the proper kerberos tix. Manually generating the kerberos keytab from AD dont work. Any suggestions? root@host /#head -1 /etc/release Solaris 10 10/08 s10s_u6wos_07b SPARC root@host /usr/sfw/sbin#./smbd -V Version 3.0.28 root@host /#for PKG in `pkginfo -x | grep -i samba | awk '{print $1}'`; do VER=`pkginfo -l ${PKG} | grep PSTAMP`;

I've been looking at the --progress reporting, which is somewhat improved these days. But look at this output of this evening rawhide mirror update: [...] perl-DB_File-1.75-27.i386.rpm 73430 100% 519.63kB/s 0:00:00 perl-DB_File-1.75-28.99.3.i386.rpm 61783 100% 533.94kB/s 0:00:00 [...] Now, while it's good to have the ETA ticking down as something is fetched,

Hi, I have two questions: First, does anyone know how to put a combobox inside a GUI made with Tcl/Tk ? I think there isn't a simple way to do this (a command like tkcombobox()!), but is it possible to write a more complex code to achieve this ? Second, when I put two listboxes in the same window or frame (even in two different toplevel windows), I cannot select things in the two lists

Hi Gon?alo Ferraz <gferraz29 at gmail.com> napsal dne 11.09.2007 16:35:57: > Thanks! What is the easiest way of declaring an empty data frame. Is there > anything similar to: > matrix(0,x,y) > In the help files, I am only finding longer commands that ask me to specify > each individual column. You can either do dat<-data.frame(x=rep(NA,10), y=rep(NA,10)) or to

converting a POSIX class variable to a date class is easy. dates<-as.Date(x) #where X is of class POSIX How does one do that to all columns in a data frame that are of POSIX class and leave all the other columns (integers, factors) as is. Feel free to reply with just one or two buzzwords that I could then search for to find how to do it. Farrel Buchinsky

Début du message réexpédié : > De: Depiereux Constant <constant.depiereux@aqte.be> > Date: 16 mars 2005 00:11:11 GMT+01:00 > À: spjgmwn@iop.kcl.ac.uk > Objet: Rép : [R] RODBC, sqlSave and sqlAppend > > > Le 15-mars-05, à 16:19, Matthew W Nash a écrit : > >> Hi all, >> >> I am currently trying to read, write and append data between R and MS

Hello: I have a dataframe, where the first column in a month: Month CATCHMENT_ med min max 1 Apr Alknda01 71.68080 11.9406600 196.2753 2 Apr Alknda02 69.44580 12.1065600 196.2753 3 Apr ArialKhan 39.89310 5.8598700 175.4433 4 Apr Arjun01 4.79652 0.0093336 55.7136 5 Apr Arjun02 4.79652 0.0093336 55.7136 6 Apr Arun01 52.42320 0.1571928

Anyone else having trouble when installing python-tools? sudo yum -y install python-tools Password: Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached hostfile adobe-linux | 951 B 00:00 extras | 951 B 00:00 base | 1.1 kB 00:00 updates | 951 B 00:00 addons | 951 B 00:00 3 packages excluded due to repository priority protections Setting up

Hi, I have read quitea bit of the available resources and have this idea of asterisk. Would someone kindly answer these briefly 1-) Asterisk does not need a sound card...but if i am to record voice into an extension or dial from CLI ( basically use asterisk itself as a softphone ) then i need a sound card. : Yes/No a-) If yes creative soundblaster pci 128 is my best bet. Yes/No 2-) Which is

Hi, Sometime when I attach a dataset, R gives me the following message/warning:"The following object(s) are masked from package:datasets: column_name". Does anyone know what it means? Since it seems that the dataset was attached and I could manipulate the data from the dataset without problems, I am wondering what was R trying to tell me. Thanks, Tom [[alternative HTML version

Hello all, I am a newbie at R, with some experience in PERL. I have a database table that contains the following data: Name | Score ======= | ===== Sachin T | 25 Sachin T | 53 Sachin T | 57 Sachin T | 34 Rahul D | 38 Rahul D | 31 Rahul D | 53 Ricky P | 7 Ricky P | 45 Ricky P | 27 Ricky P | 17 Ricky P | 86 Ricky P | 48 Jacques K | 23 Jacques K | 86 Jacques K | 32 I

Hello, The other day Justin Peter presented a mini program to plot a topographic map with an overlay of the worldHires. I seemed interesting so I checked the ETOPO5 site and find that there is a new file ETOPO1 with a 1 minute grid. I downloaded it and tried a similar procedure. Now the ETOPO1.gz is 1 Gb and the uncompressed file is 5 Gb. They do not fit into my laptop. I tried the following