similar to: How to handle empty arguments

Hi, I''ve two tables: ProductLists (id, name, ...) Product (id,name,product_list_1_id, product_list_2_id, ...) How can I map the fields product_list_1_id and product_list_2_id to the ProductLists table in activerecord????? Thanks. -- Posted via http://www.ruby-forum.com/.

I have had this problem both with 8.04 and 9.04 / with 1.0.1 and 1.1.29 i have intel celeron 3.33ghz radeon express 200 onboard ati graphics I install steam which has a wierd thing of scrolling down and right staying there so i must install games threw the actual website i downloaded the portal demo and here is what happened on 8.04: Launch options= -dxlevel 81 (to load intro screen with

Hi all, I want to execute a loop of a program: for (u in Timeframemin:Timeframe){} Imagine that Timeframemin<-10 Timefram<-10000 Is it posible to execute the loop but only proving from 10 to 10000 but jumping 10 each time, for example, execute for 10,20,30.....to Timeframe. Other question is, when a program is "heavy" and has a lot of loops to execute (how can I know where

I have about $1200 to spend on 2 boxes and I'd like them to be identical. Very basic web serving, simple HTML5 video, light email serving. Looking around NewEgg, I come across: http://www.newegg.com/Product/Product.aspx?Item=9SIA65C1ZT3064 These use ECC unbuffered RAM which is expensive but I did find 8gb sticks for under $70 each:

Years ago Accusys made an IDE raid controller that presented itself as one drive to the BIOS, making the unit completely OS agnostic. Anything like that out there, anymore? Cheers, Brett.

Hi, I need to fit at least three NICs and I was looking for motherboard models that contain 3 or 4 CPI (or PCI-e) slots and works with CentOS. I had a problem in the past with some models that had a bug and did not work well with linux (ok with windows) so that's way I am asking this here. -------------- next part -------------- An HTML attachment was scrubbed... URL:

https://bugzilla.mindrot.org/show_bug.cgi?id=2281 Bug ID: 2281 Summary: sshd accepts empty arguments in ForceCommand and VersionAddendum Product: Portable OpenSSH Version: 6.6p1 Hardware: Other OS: Linux Status: NEW Severity: normal Priority: P5 Component: sshd

I'm trying to write some functions to deal with empty actual arguments that are picked up by '...' formals. Such actual arguments are common (and very useful) in calls to subsetting functions, e.g., x[1:2,]. It seems that R and S-PLUS treat these arguments differently: in S-PLUS list(...) will return a list containing just the non-empty arguments, whereas in R list(...) stops

Thanks for the report, I am testing a patch that will allow multi-line arguments to user macros. Best Tomas On 05/25/2018 04:45 PM, Georgi Boshnakov wrote: > While on the topic of Rd macro arguments, it seems that if a multiline argument is supplied, the lines after the first are silently ignored: > > f <- tempfile() > mac6 <- "\\newcommand{\\mac6}{mac6: #1}" >

Dear all, I would like to use the following function fitdist(data, distr, method=c("mle", "mme", "qme", "mge"), start=NULL, fix.arg=NULL, ...) for many different distr values like distr=c("norm","lnorm","pois") (just a small example) and take back into a list the parameter name which is what is inside distr plus what the

Hello everyone, could you help me learn if there are any directives that can be used to address the first and last element of a matrix array? I would like to thank you in advance for your help Best Regards Alex [[alternative HTML version deleted]]

Hello when my code executes I receive the message that were some warnings. I want to catch warning messages at run time so to print some local variables and try to understand why this warning happens. I searched on internet and I tried withCallingHandlers( which seems to work but as I used Rkward the result is awful. I get a prompt to copy paste a value only while at the same time my background

The function addmargins() adds margins to a table, but returns a matrix. But even after converted to a table the print.zero="." option of print.table() does not work: > x <- sample( 1:7, 20, replace=T ) > y <- sample( 1:7, 20, replace=T ) > tt <- table( x, y ) > tx <- as.table( addmargins( table( x, y ) ) ) > print( tt, zero.print="." ) y x 1 2

The function addmargins() adds margins to a table, but returns a matrix. But even after converted to a table the print.zero="." option of print.table() does not work: > x <- sample( 1:7, 20, replace=T ) > y <- sample( 1:7, 20, replace=T ) > tt <- table( x, y ) > tx <- as.table( addmargins( table( x, y ) ) ) > print( tt, zero.print="." ) y x 1 2

Dear all, I have a variable that I would like also to use it as a string. The reasons is that I want to collect results from different function to one table.. So when I use the  colnames(mymatrix) <-c(function1.function2,function3) the function1, function2, function3 to be "converted" to simple strings so as  colnames(mymatrix)

Hello everyone. I would like to find the sample covariance matrix using R. So far I read on the wikipedia what a sample_covariance is http://en.wikipedia.org/wiki/Sample_covariance according to wikipedia one vector is enough to calculate the sample covariance matrix. In R I tried cov(myvector) and I get the reply that I need to pass either two argument or one matrix with x,y values . How can I

Dear all, I would like to print a few values with less digits than the default. How I can reduce how many digits are printed ?(warning: not the real integer resolution but what is shown in screen) Best Regards Alex

in a simple plot. When i do plot is it possible to zoom in or out or this is not possible at all? Best Regards Alex [[alternative HTML version deleted]]

Dear all, I was reading last night the lm and the Formula manual page, and 'I have to admit that I had tough time to understand their syntax. Is there a simpler guide for the dummies like me to start with? I would like to thank you in advance for your help Regards Alex [[alternative HTML version deleted]]

Good morning :) I want to use some c code to read statistics as well as the configured settings ... .. Just give me some links for starting reading :) Have a nice day ____________________________________________________ Yahoo! Sports Rekindle the Rivalries. Sign up for Fantasy Football http://football.fantasysports.yahoo.com