similar to: Source Code for zoo?

Hi WizaRds, In MATLAB you can do x=1:10 and then specify x(2:end) to get 2 3 4 5 6 7 8 9 10 or whatever (note that in MATLAB the parenthetic index notation is used, not brackets as in R). The point is that 'end' allows you to refer to the final index point of the array. Obviously there isn't much gain in syntax when the variable name is x, but when it's something like

Hi WizaRds, What is the "standard" way to get the day of the week from a date such as as.Date("2006-12-01")? It looks like fCalendar has some functions but this requires a change in the R locale to GMT. Is there another way? Thanks! Jack. --------------------------------- Be a PS3 game guru. [[alternative HTML version deleted]]

Hi All, I'm looking for some hints on idiomatic R usage using 'lapply' or similar. What follows is a simple example from which to generalize my question... # Suppose, in this simple example, I want to plot a number of different lines in different colors; # I define the colors I wish to use and I plot them in a loop: d<-

Hi All, I am illustrating a simple, two-way ANOVA using the following data and I'm having difficulty in expressing the predicted values succinctly in R. X<- data.frame(read.table(textConnection(" Machine.1 Machine.2 Machine.3 53 61 51 47 55 51 46 52 49 50

The problem: users trying to debug Mechanize apps with Komodo are finding the debugger times out once it''s loaded a web page. They don''t run into this in the ruby-debug debugger, or running in normal mode. The reason: Komodo''s debugger is graphical, which means that whenever it hits a breakpoint it automatically shows the contents of each local variable. It has a

I am using CSV in a rake task (db:seed) on Rails 3.0.3, Ruby 1.9.2 to read a file with some funny chars in it. Upon breaking in at a point where the row read using CSV is in variable row, with the string with the char in row[''price''] I get the following strange results which I cannot understand. (rdb:1) row[''price''] "\xA32.00" (rdb:1)

[Q.] How to create an array of lists, or structures the most elegant way? There have been questions in the past but none too recently...I want to know if the following looks OK to you guys or if there is a better way to create an array of lists: # PREAMBLE ... JUST TO GET THINGS GOING makeList<- function(data, anythingElse) { rval <- list( data = data, anythingElse =

Hi WizaRds, I tried reading the S-PLUS file ftp://ftp.research.att.com/dist/bayes-meta/hblm.dmp into R using data.restore("hblm.dmp") but I got an error: Error in attributes(value) <- thelist[-match(c(".Data", ".Dim", ".Dimnames", : row names must be 'character' or 'integer', not 'double' In

Hi WizaRds, (I've cross-posted to r-sig-finance because a lot of people there use 'zoo' objects). I'm trying to plot 2 time series lined up with par(mfrow=c(2,1)), so that the time index is the same for the two series. The data have monthly frequency. An example will illustrate: # data for these dates (monthly frequency) do not have NAs: require(zoo) monthly.dates<-

Anyone have an idea on this? Got a weird situation where on a specific model I can not create an instance using params, yet it works fine on other models. The model which does not work is a stock model, there is no logic in it. Ruby 1.8.7/Rails 3.0.5. Does not work: (rdb:1) PaymentTransaction.create(:purchase_id => 3) #<PaymentTransaction id: 2, purchase_id: nil, action: nil, amount: nil,

I have very large csv files (up to 1GB each of ASCII text). I'd like to be able to read them directly in to R. The problem I am having is with the variable length of the data in each record. Here's a (simplified) example: $ cat foo.csv Name,Start Month,Data Foo,10,-0.5615,2.3065,0.1589,-0.3649,1.5955

I get the following error at the browser: ArgumentError in ImagesController#upload invalid geometry string `110×'' ... for the call to change_geometry with an explicit size (''110x'') as the geometry string: def make_thumb (the_img) require ''RMagick'' size = "110x" debugger if ENV[''RAILS_ENV''] ==

Hi WizaRds, I ran into trouble trying to install the "debug" package, which requires TCL/TK support. It seems like the tcltk package is not installed on my system. From: http://tolstoy.newcastle.edu.au/R/help/05/07/7993.html it seems that the tcltk is bundled with the base R distribution. I'm running R under linux: > version _ platform i686-pc-linux-gnu

Dear WizaRds, This is mostly a statistics question, but I'm figuring that R is the right solution (even before I start!) I have some bio data of heart rate versus time (rats taken from resting to maximal heart rate). I want to regress heart rate on time. The data have been normalized such that resting heart rate is zero at time=0, so that all curves intersect at the origin (and at the origin

Hi WizaRds, I'm experiencing a problem connecting to an Oracle 10g database via RODBC (I'm getting this on Microsoft XP). The same SQL queries via PL/SQL Developer work just fine, but when I pump the query through sqlQuery in RODBC then I get a data frame back with 0 rows. I cut the query down alternating between PL/SQL and RODBC until I figured that it's some kind of row limit or

Dear ComRades, I am having the "wrong MD5 checksums" error with every package I try to install. It happened with R 2.11.0, then I updated to R 2.11.1, same thing. sessionInfo() R version 2.11.1 (2010-05-31) i386-pc-mingw32 locale: [1] LC_COLLATE=Spanish_Spain.1252 LC_CTYPE=Spanish_Spain.1252 LC_MONETARY=Spanish_Spain.1252 [4] LC_NUMERIC=C

Hello, I am trying to build R from source on Scientific Linux release 6.9 (Carbon), Linux version 2.6.32-696.3.2.el6.x86_64 (Red Hat 4.4.7-18). I load the needed modules and run: *./configure --prefix $install_dir --with-blas --with-lapack --enable-R-shlib 2>&1 | tee config-R-$version.log* The "configure" command seems to run ok: *R is now configured for

I downloaded R-Patched today (to see if another problem I want to ask about is still present or if its just me - as per the posting guide). I ran "tools/rsync-recommended" successfully. I then ran "configure --enable-R-shlib" successfully. Then make stops with the following error. gcc -shared -L/usr/local/lib -o tools.so text.o init.o Rmd5.o md5.o -L../../../../lib -lR

Hi WizaRds, I'd like to overplot UK fuel consumption per quarter over the course of five years. Sounds simple enough? Unless I'm missing something, the following seems very involved for what I'm trying to do. Any suggestions on simplifications? The way I did it is awkward mainly because of the first call to plot ... but isn't this necessary, especially to set limits for the

Hi, I'm completely new to Wine (I'm running version 0.9.9 under Ubuntu 6.06). I have been able to install and run Windows apps and I can see that Wine really rocks! For speed, I'd rather run Wine than VMware, especially when it comes to running MATLAB under linux. I'm having difficulty with getting MATLAB (6.5.0.180913a (R13)) to run. There are several threads in the Wine