similar to: Strange result when backing up /etc vs /root

Hi people, If there is a fn "colMeans" why isn't there a "colSDs" etc Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275) GPO Box 3411 Sydney NSW 2001 Australia Mobile: +61:0411-185-652 Fax: +61:2:8923-5363 E-mail: pri at chu.com.au -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

People, I didn''t get an answer to this before so I am trying again: I could change an existing "policy" table to "policies" with no drama but the are a number of related tables ie: p_2quot p_addr p_cc p_cs p_direct p_div p_exss

People, I have an insurance company client and for the last eleven years I have wanted to completely redevelop their system from scratch. However, the boss has never been interested in hiring a team to develop the new system (partly because of the cost and partly because of some famous and expensive development failures in the industry) and has always insisted on incremental development of the

People, I am using: before_filter :login_required in my Controllers and this works fine. For some tables I am happy to use the output of eg: ruby script/generate scaffold Author but is there some way that I can disable Create, Edit, Destroy for some user logins in the corresponding view? Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275) GPO Box

People, If I have a table "books" and a table "comments" and if there is either ZERO or ONE comment per book then: - "Comment" belongs_to "Book" but what is the relationship of "Book" to "Comment"? Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275) GPO Box 3411 Sydney NSW 2001 Australia

People, It appears that one has to use Imperial measurements in plot parameters? I can't find any info on using metric units . . Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275) GPO Box 3411 Sydney NSW 2001 Australia E-mail: phil at pricom.com.au

People, I have tables years and teams and I have the years listing like: 1965 1966 1967 . . I want to be able to click on the year and ONLY list teams for that year. At first I thought the following was working until I started populating the table with teams for more than one year. For views/years/list.rhtml: <% for year in @years %> <tr> <td> <%= link_to

People, In the cookbook eg, categories has_many recipes but in a book eg, book has_one description - doesn''t that mean that the id of the description should be the same as the id of the book (instead of having it''s own "description_id" in the book table? Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275) GPO Box 3411 Sydney

People, A simple Rails app that was previously working with LoginGenerator eg: http://localhost/library/account/signup is now giving: <h2>Application error</h2>Rails application failed to start properly Other Rails apps are working OK that don''t use this LoginGenerator. I have re-installed it with: gem install login_generator Anyone know what might be wrong/have

People, I can order categories when looking at the categories list page but how do I change the recipe page to list the categories in alpha order in the recipe pull-down box?: > <p><b>Category:</b><br> > <select name="recipe[category_id]"> > <% @categories.each do |category| %> > <option value="<%= category.id

People, I want to design a historical sports db for my old school. I think at the moment it should be like: A year has many teams A team has many students A student has one lastname, firstname and middlename but a student can also have many teams (eg summer/winter abd over a number of years) . . Is there a problem with this? Doesn''t it just mean that there will be a student table

Hi people, I have made some progress trying to work out how to solve this problem but I have got a bit stuck - sorry if this turns out to be a simple exercise . . Allelic Differentiation (AD) in genetics measures the number of different alleles between (say) two populations eg: Organisms in Pop 1 have alleles: a, b, c, d, e Organisms in Pop 2 have alleles: b, b, c, d, e Different

Hi all, I want to use a fourth plot on a page as a "map" of how to interpret the previous three plots - so the x axes are all the same but I want the y axis on the fourth plot to have no graduations or numbers - is this possible? I had a look in Peter's book and the help stuff but couldn't see anything. Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252

This is a follow-up announcement from the 0.9 release. There are no major changes, but this release marks a downloadable (tgz) file as well as a promotional website, a demo application and screenshots. Family Connection is an easy-to-setup online hub for your family that includes a Family News section, and an Address Book. http://familyconnect.rubyforge.org/ Please note that the download

After searching in R- Introduction, FAQ, help... I don't understand this: I write a function in a file (.R): tt <- function(mc) { date() mc<-read.csv2("machines.txt",na.strings="") date() } I source it in R and I type tt(). The answer is > tt() [1] "Mon Aug 14 11:18:25 2000" > The instructions following the first "date()" are ignored. Why?

Hi all, I hope someone can give me some quick pointers - it would take me ages to work this out from scratch - I want to: - From an array - 32 cols x 1000 rows of small floats - Produce a second array from the first where the all numbers have an abs fn applied to them (to get rid of the neg numbers) - Produce a third array from the second where all numbers less than 0.0005 are converted to

Hi all, I have just got going with R and think it is really nice however, as far as I can see, it can't do what I got it for: I have some output from a computer simulation of mutating genes represented by a biological statistic - so the graph looks roughly like the top of: x = y^2 - with oscillations around the general curve. If I use scatter.smooth() I get a nice curve representing

People, I want to create seven plots on the one graph - each with it's own Y axis and scale - I want the plots overlaid because it is the shape of the graphs that I want to compare, not so much the values. I have found examples where people show how to put two Y axes on the left of the plot but I couldn't find examples of any more than that - is it possible? Thanks, Phil. --

People, On my home computer with a real plot I get what I expect - open circles as the plot character - on my work computer I get "q"s ! So I tried a trivial test plot on the work computer ie: a <- c(1,2,3,4,5) b <- c(1,2,3,4,5) plot(a,b) and that also gives me open circles as it should! - the plot line in my real script is: plot( means5[ ,4 ], means6[ ,4 ],

People, This is probably simple but I couldn''t find where to change the default 10 records per page for scaffolding . . Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275) GPO Box 3411 Sydney NSW 2001 Australia Mobile: +61:(0)411-185-652 Fax: +61:(0)2-8221-9599 E-mail: phil@pricom.com.au