similar to: Strange axis labels?

Ok, David says on page 241 that sometimes a many-to-many relation with attributes are better implemented as an actual model instead of using HABTM. Well, I''ve got that situation and I can''t figure it out. All of the examples in the book have HABTM examples between 2 different tables, but I want to have a HABTM relation on 1 table with itself. (e.g., if I have a table Things,

Hey all, I''d like to abstract the process of updating different portions of the page after an Ajax request has taken place. Rather than simply putting the extra view logic in the standard rjs template, it seems to give better separation if there is a split between the core view logic (ie, inserting a row in a table), and updating any associated portions of the page. Is this possible? I

I have more or less the same problem. I''m trying to build a system where users can enter their friends. But the solutions seems not to work for me. I used same sql: CREATE TABLE `friends` ( `user_id` int(11) NOT NULL default ''0'', `friend_id` int(11) NOT NULL default ''0'', KEY `user_id` (`user_id`), KEY `friend_id` (`friend_id`),

In my function I am trying to return multiple computed items (separated by commas). The function does what I need, but I get a warning message that multi-argument returns are deprecated. Is this a warning I should heed, or is there a more elegant and warning free way of achieving the same end? Thanks --------------------------------- [[alternative HTML version deleted]]

First things first: Hi all! I''ve been sucked into prototype and script.aculo.us develpment thanks (because of?) the Symfony PHP framework... I''d like to implement a feature on some admin pages, but I can''t seem to find the right search term to google it; I want to ask the user to confirm exit of a page, if she has changed anything on the forms displayed on it. I have

Hi There: I was wondering if there is a way to read FORTRAN list data (similar to IDL's readf function). I often use FORTRAN for most of my number crunching, and use something like IDL to visualize and perform statistical analysis on that data. Since the each file is rather large (>100 Mb), formatting the output into columns or tables is impractical, hence the "list"

My database is set up as Categories > Things associated by category_id and has_many and belongs_to. How would I go about listing all the categories and under each Category is it''s children? Is there an easy rails way to do this - preferably without using acts as tree? Any help is appreciated - thanks! -- Posted via http://www.ruby-forum.com/.

I know this isn't CentOS-specific, but it is probably a common problem - does anyone have a solution? If you mail something that is plain text from linux a recipient using outlook, it will remove line breaks more or less randomly. There is a way to tell outook to put them back as you read each message, but most people just think I sent it wrong. Is there something you can do to make a

Hello, We're trying to set up a GPFS system with Samba running on top with CTDB managing it. I have snapshots set up to be accessible in every directory as the invisible directory .snap The snapshots are in the following format: /usr/lpp/mmfs/bin/mmcrsnapshot 1MB `TZ=GMT date + at GMT-%Y.%m.%d-%H.%M.%S` ?and look like this from the UNIX level:

Moi! I've spent a fun few hours trying to get a plot to look exactly the way I want it, and with a lot of help from Venables & Ripley (the book!) and the help pages, I've almost got it perfect. Only one problem now remains.... I'm using R1.2.2 on Windoze NT. I want to draw the graph as a Windows metafile (so at the moment I'm using the windows device, i.e. on the screen and

Apologies for this - I'm sure I'm missing something somewhere... I've got a time series with several of missing values in it that I want to torture with R. But ts doesn't like the NA's, and I can't find any documentation telling me what to do about it. Help! Bob -- Bob O'Hara Metapopulation Research Group Division of Population Biology Department of Ecology and

Hello ALL: How do I get R to list all possible orderings of 2 x's and 3 y's? It should look like this (which rows appear first is unimportant): x x y y y x y x y y x y y x y x y y y x y x x y y y x y x y y x y y x y y x x y y y x y x y y y x x Thanks, ANDREW

I'm trying to draw some error bars on a bar chart. I'm using code like this: thing <- c(3,3,3) se <- c(1,1,1) names(thing) <- c("A", "B", "C") barplot(thing, ylim=c(0,4)) arrows(c(1:3), thing-se, c(1:3), thing+se, code=3, angle=90,length=0.1) Using c(1:3) has 2 problems: 1. Obviously it is untidy, but using names(thing) doesn't work, and I

Moi! I was helping to teach a course on mixed models this week, and we came across a problem with coding more than one random effect in lme when they aren't nested. As an example, suppose we have an experiment where we sample moths from several populations, and place the moths on different trees, and measure a trait (in this case survival of offspring, but that's less important). We

I really like to use R for all my graphs, and as I work with stable isotopes I want to have a proper chemical notation in my plots I have looked at ?plotmath, but didn't find the answer and also searched the R website. ------------------------------------------------------------------------ -- plot(1:10,xlab=expression(^{14}*C)) # I want to have a superscript with nothing in front, but it

Recent questions about using plotmath have renewed my interest in this question I want to have expressions take values of variables from the environment. I am able to use expressions, and I am able to use paste to put text and values of variables into plots. But the two things just won't work together. Here is some example code that shows what I mean. plot(NA,xlim=c(0,100),ylim=c(0,100))

I have a rails app that has a search mechanism with a bunch of options. I''ve consolidated all the search parameters into a SearchQuery class. Now I want to store searches to be recalled later. I searched the wiki but couldn''t find any pages about how to do this best. I''m worried that if I just serialize the object I won''t be able to change the class without

Hi, Although I understand how to use expression and paste to add superscripts and symbols to my graphs, I have a problem with adding superscripts to an existing string. For example, I read in the following from a separate file: 25Mg(p,g) I want to convert that to superscripts etc. (in LaTex format): $^{25}$Mg(p,$\gamma$) This needs to then be put into a graph title. Any ideas? I know that I

Hi, I'm interested in using mtext(), but with the option of having multiple colors in the same line of text. For example, creating a line of text where: Red is red and blue is blue How do you create a text argument that lets you do this within mtext()? Thanks, Andrew MGH Cancer Center [[alternative HTML version deleted]]

Colleagues ---------------------------------- System info: R version rw1022 on NT ESS v. 5.1.18 using emacs ver. 20.4 ---------------------------------- I have some rather unusual units for acoustic volume backscattering integrated over several metres depth and 10 transmits (which happens to = 160 m along transect). I need to express these units in a graph label. My problem