similar to: DBS to R

Hello, What is the best way to turn a matrix into a list removing NaN's? I'm new to R... Start: > mt = matrix(c(1,4,NaN,5,3,6),2,3) > mt [,1] [,2] [,3] [1,] 1 NaN 3 [2,] 4 5 6 Desired result: > lst [[1]] [1] 1 3 [[2]] [1] 4 5 6 Thanks! Ben [[alternative HTML version deleted]]

Hey all, I've been using ->add_database for a few years to tie sharded DBs together and it works great. Now, I want to be able to search across several DBs which aren't sharded, say: linux-DB, glibc-DB, freebsd-DB. I want to search for something across all of them, but prioritize results to favor one or some of those DBs over others. Is there a way to do that without reindexing? Or

Hello, I'm attempting to return the date (in form '%Y-%m-%d') of the Monday previous to the current date. For example: since it is 2011-09-02 today, I would expect 2011-08-29 to be the return value. I found the following in: http://www.mail-archive.com/r-help@r-project.org/msg144184.html Start quote from link: prevmonday <- function(x) 7 * floor(as.numeric(x-1+4) / 7) +

Hello folks, I use to think that a relational databases without foreign keys constraints enforced strictly by the RDBMS were no good, piece of crap, data junk. However, I''ve also learned the hard way that FKs constraints imposes serious difficulties when moving data around, specially between different DBs, or for loading test data or for upgrading DBs schemas, or for porting DBs

Hello, Does anyone know how to change the Tinn-R editor background color? White is rough on the eyes... Thanks, Ben [[alternative HTML version deleted]]

Can someone show me how to modify one (R.oo) class's object inside another (R.oo) class's method? Is that possible with the R.oo package? A quick example or reference to an example would be outstanding... Thanks, Ben [[alternative HTML version deleted]]

Hello, There has to be a more R'ish way to do this. I have two matrices, one has the values I want, but I want to NA some of them. The other matrix has binary values that tell me if I want to NA the values in the other matrix. I produce a third matrix based on this. I've also tried apply() passing in c(1,2) for rows and columns with no success yet. Example (this works, but I'm

Hello, I'm trying to get the count of values in each row that are above and below quantile thresholds. Thanks! Example: > x = matrix(1:30,5,6) > x [,1] [,2] [,3] [,4] [,5] [,6] [1,] 1 6 11 16 21 26 [2,] 2 7 12 17 22 27 [3,] 3 8 13 18 23 28 [4,] 4 9 14 19 24 29 [5,] 5 10 15 20 25 30 > qtl = t(apply(x, 1,

Hello, I'm looking to get the values, row names and column names of the largest and smallest values in a matrix. Example (except is does not include the names): > x <- swiss$Education[1:25] > dat = matrix(x,5,5) > colnames(dat) = c('a','b','c','d','c') > rownames(dat) = c('z','y','x','w','v') >

Hello, I'd like to 'do work' on data members upon construction (i.e. without implementing it in a get method). Is this the best way to create data member 'z' upon construction? I'm thinking if .z=paste(x,y) below gets more complex I'll run into issues. setConstructorS3("MyClass", function(x=NA,y=NA,...) { this <- extend(Object(), "MyClass",

Hello, Using the R.oo package, how do I throw an error if a field is not present when the user of the class creates the object? Using the example in the R.oo package: setConstructorS3("Person", function(name, age) { if (missing(name)) name <- NA; if (missing(age)) age <- NA; extend(Object(), "Person", .name=name, .age=age ) }) [rest of class methods

trying to structure sql to merge two datasets. structure follows: dbs.possible.combos (all possible combinations of dates and places) Date Place 1/1/10 N-01 1/1/10 S-02 1/2/10 N-01 1/2/10 S-02 etc... dbs.aggregate (the raw data aggregated by date and location) Date Place Days 1/1/10 N-01 6 1/1/10 S-02 10 1/2/10 S-02 5 Trying to merge so I look-up the values for each possible combo dbs.final

3 things that should be part of the main Rails tree: http://www.redhillconsulting.com.au/rails_plugins.html Views? -- Posted via http://www.ruby-forum.com/.

Hello, Does anyone know how to convert this: > msg [1] "a" [2] "b" [3] "c" To: > msg "a b c" In other words, I need to convert a character vector to a single string with carriage returns for each row. Functionally, I'm attempting to send an email of a character vector in a way that is readable in the email body. I can only input one

Hello, First time posting to this mail list. I'd like to use R in the most efficient way. I'm accomplishing what I want, but feel there is a more R'ish way to do it. Just learning R. *My goal: get ranks of value across rows with row names and column names intact.* I'm guessing one of the [?]apply functions will do what I need, but I couldn't sort out which one (after a lot

If someone is able, can you tell me if there is a better way to do this? More specifically, do I have to rewrite all of the data members stuff and extend stuff of parent class in the child class? See below. Thanks in advance! Example 1: setConstructorS3("ClassA", function(A,x) { if(missing(A))A=15; if(missing(x))x=NA; extend(Object(), "ClassA", .size = A, .x=x

Hello, I've posted something similar under a different subject and never received a solution. Trying again with (hopefully) a better description. Objective: Send a matrix of string data in an email message. The message must have authentication and be sent via an R script. I'm almost there! Here is where I am at: I collect long error message lines in 'errs', which is a matrix.

Hello, I'm pretty new to R. Basically, how do I speed up the for loop below. Or better yet, get rid of the for loop all together. objective: plot two data sets column against column by index. These data sets have alot NA's. Some columns are all NA's. I need the plots to overlay. I don't like the plots in matplot(). Needs to be much faster than the code below... #simple sample

Welcome, I'm new one here . I've switch to dovecot in order to get mysql auth to recive emails. And I am not sure about one thing : may I configure dovecot to user more then one DB to authorize users ? I have suse 11.1/postfix/mysql system where the users exist in 2 separate DBs. Delivering works well, I'm just not sure if everyone could revive the emails ? Any tips ? reagards,

Every now and then when I am working on making the SQL Server adapter pass all the ActiveRecord tests, I notice one that looks like a false positive in the core DBs. Here is one case in relations_test.rb. Can someone look at this and just tell me it is normal for other DBs and just odd for SQL Server? Or maybe it is just my understand of some SQL standard. I''m really not that SQL smart.