similar to: Changing Application Error (Rails) to something pretty?

Hey all, In my code, it seems that when I divide two integers, the result is an integer. Is there any way to make it such that when I divide two integers, the result is a double? Any help appreciated, Jin _______________________________________________ Rails mailing list Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org http://lists.rubyonrails.org/mailman/listinfo/rails

Hey all, this is kind of a weird question, but is there any way to tell ActiveRecord to not update a field that hasn''t been changed? When I see my executed UPDATE sql, I see it trying to update every single field, regardless of whether its been changed or not. Is there any way to have ActiveRecord update ONLY the changed fields? Thanks guys, Jin

Hey all, I believe there is a memory leak when using Win2000 + SQL Server + Apache2 + scgi + rails 1.1. My apps so far have been pretty ''low impact'' and i did not notice it before, but the memory footprint of ruby.exe is growing larger. After 6 queries that fetch ~2,000 rows each, ruby.exe has grown to 41 megs (originally around 20). The memory leak is also present in webrick,

Hi all ! I would like to simulate spatial lattice/areal data with a conditional autoregressive (CAR) structure, for a given neighbouring matrix and for a autocorrelation "rho". Is there any package or function in R to perform it ? I found the function "CARsimu" in the hdeco library, but this is not what I'm looking for Thanks in advance Dae-Jin --

Hello list, I have an app that has a very simple authorization scheme. A person can have many roles and roles can have many people. In my app, I''d like to do before_filter :login_required (since no role name is provided, it accepts any users with credentials) before_filter :login_required ("administrator") (only accepts those with role administrator) before_filter

Hi all! I'm running some simulations and I need to estimate some paramaters with optim( ), in some cases optim stops with the next message: "L-BFGS-B needs finite values of 'fn' " I would like to know how to include and "if" condition when this happen, could it be something like: myfun <- optim(....) # run my function

Hi all, Slightly OT, but is there any way to run command-line programs through Ruby? I have a rails web application that performs some database work. After a certain action is performed, the rails app should then call a java program that performs additional work to our mainframe. This is under Win 2003 Server. Any ideas? Thanks, Jin Lee -------------- next part -------------- An HTML attachment

Or does anybody prefer fastcgi/fcgi? I''m using webrick for development, but plan on using scgi when I switch to production (because it appears to be an update to fastcgi, and I couldn''t get fastcgi working anyhow). thanks csn __________________________________ Yahoo! Mail - PC Magazine Editors'' Choice 2005 http://mail.yahoo.com

Dear R-lister Could anyone know how to make a multi-line title for a plot with expression()? In my plot, the title should be writeen in two lines (because it is two long for one line) and it should use a mathematical expression. I tried to use "\n", but "\n" is ignored in expression() call: hist(diffChangeRequestHintsBeforeAnswering[,4], br = 50, xlab = "Skill Change in

Dear All, This is JIN with working for Mantech Co.in South Korea. I have tried to intall rsync 2.5.6 verion on Redhat Advance Server kernel 2.4.9-e.3. When I compiled the rsync for the "make" and "make install", ths process of compiling has some unknown messages then the method to use the sync with "rsync -aux with 873 port" did not work but the other method with

On May 25, 2006, at 10:01 AM, Jin Lee wrote: > Cool site, Lee family here I come! > I must know how you did those screenshots! That''s some nice AJAX > (right?) > > Good luck, > Jin Lee Like Michael said, it''s Lightbox. Not really "AJAX" per se, but definitely some javascript goodness :) On May 25, 2006, at 9:49 AM, Mickael Faivre-Macon wrote:

Dear All 1) I'm fitting spatial CAR models using R2Winbugs and although everything seems to go reasonably well (or I think so) the next message appears from WINBUGS 1.4 window: gen.inits() Command #Bugs: gen.inits cannot be executed (is greyed out) The question is if this message means that something is wrong and the results are consequently wrong, or Can I assume it as a simple warning

Hi all ! I've been trying to maximize a likelihood using optim( ) function, but it seems that the function has several local maxima. I've tried in my algorithm with different starting values and depending on them "optim" obtains different results... I use the "L-BFGS-B" method setting the lower values as 1e-06, because my parameters must be strictly positive. Also

Hello, I was looking for a way to evaluate the goodness-of-fit of a logistic regression model. After googling, I found that I could use "resid(fit, 'gof')" method implemented in the rms package. However, since I am not used to the "le Cessie-van Houwelingen normal test statistic," I do not know which statistic from the returned from the "resid(fit,

hello, Suppose I have a table that looks like this: center name email Health Jon jon@test.com Health Bob bob@test.com Admin Jane jan@test.com Admin Jill jill@test.com I would like the output to look like this: Health Jon jon@test.com Bob bob@test.com Admin Jane jan@test.com Jill jill@test.com when i using cold fusion, this was easy via a tag called cfoutput. when i was using java, this was

Dear R-users I am looking for a help in using the "deal" package. I followed the manual and paper from the author's web site to learn it, as shown below, but I could not figure out how to access the local and posterior probability of the nodes in the constructed network. library(deal) data(ksl) ksl.nw <- network(ksl) ksl.prior <- jointprior(ksl.nw) banlist <-

Hello, I'm trying to add a column to the following data frame. The new column will contain "black" when the 5th column(if_TE_related) is "TE_related", or "orange" when the 4th column is " " (space). "chromo" "MSU_locus" "end5" "end3" "if_TE_related" "chr04" "LOC_Os04g01006" 1032

Dear R users I would like to know if there is a way to create a list or an array (or anything) which grows automatically as more elements are put into it. What I want to find is something equivalent to an ArrayList object of Java language. In Java, I can do the following thing: // Java code ArrayList myArray = new ArrayList(); myArray.add("object1"); myArray.add("object2");

Dear R users I would like to know if there is a way to create a list or an array (or anything) which grows automatically as more elements are put into it. What I want to find is something equivalent to an ArrayList object of Java language. In Java, I can do the following thing: // Java code ArrayList myArray = new ArrayList(); myArray.add("object1"); myArray.add("object2");

I followed your steps, my smb.service is inactive [root at localhost samba]# systemctl stop winbind [root at localhost samba]# net cache flush [root at localhost samba]# ll total 460 drwxrwxr-x. 10 root printadmin 4096 Oct 29 07:17 drivers drwxr-xr-x. 4 root root 38 Oct 29 07:17 DriverStore -rw-------. 1 root root 696 Nov 23 23:39 group_mapping.tdb drwxr-xr-x. 4 root root