Mr. Gunn

what do your data look like ? can we see one or two rows of data ? - Pierre

sure, let me throw it into google spreadsheet - Mr. Gunn

OK, the data are here: http://spreadsheets.google.com/ccc... - Mr. Gunn

looking at your data... first (stupid) observation: it wouldn't it be easier to handle in a table with four columns Treatment,Property-Name,Place,Result ? - Pierre

... with those four columns you could upload your data in a SQL engine a make aggregates (group by,sum,mean...) - Pierre

Thanks, Pierre. I guess I asked a vague question, maybe because I'm not really sure what I want. I want to display the quantititive differences between the treatment groups for each property, and it's hard to display the differences in a compact manner with the values spanning such a large range. I've tried taking the log of the data, but that makes it harder to read and not nearly as clear. - Mr. Gunn

linear model/anova with terms for the categories you are looking at? Or PCA across the matrix, zero out component(s) specifying location, home in on treatment-informative axes (tracey-widom stats are useful here). LM is certainly simpler: upload as table into R then go: lm(prop1 ~ location + source + treatment, data=myTable). Look at the qqnorm() for the residuals, which should lie on... more... - Chris Cotsapas

If you then want to compare properties apples-to-apples, you can convert them into Z scores (ie standardize) as foreach (property P) foreach(sample i) (P_i - mean(P))/sd(P) - Chris Cotsapas

Chris, I thought about PCA, but I thought it might be a bit overkill, since I already know the main important dimensions. I'm a bit limited on how I can do transformations of the data, too, since they all have their own characteristic units and the numbers will be interpreted in the context of the known normal ranges. - Mr. Gunn

Lm should still work. Each prop is handled differently so units aren't a problem. - Chris Cotsapas via Nambu

Props to @JATetro for pointing out that I just needed to take the relative differences, which collapses everything into the same range, making it graphable on the same chart. - Mr. Gunn

I was going to suggest taking logs to achieve the same end, but relative diffs is better. Again (http://friendfeed.com/the-lif...), kudos all round: this is a great example of community in action. - Bill Hooker

Yes, I was thrilled to have so many good suggestions from skilled people. Bill - I tried the log thing, but it makes the comparisons less visually apparent. Taking %diff messes up the units, so I'll have to put that in as table or something, but the good thing about it is cuts the number of data points in half. - Mr. Gunn

@chris I think the R function scale(matrix) does a similar approach of standising data using root mean square instead of standard deviation. You can use it on a whole data matrix rather than looping each variable. - Michael Barton

Nice. Never keen on apps that require my Twitter password though, especially through a non-SSL connection. If logged in to Twitter via a browser, there's a cookie named _twitter_sess that the app could use instead. - Neil Saunders

I prefer having the citations appear in FF - am always wary of things which will increase the number of my tweets :) - Allyson Lister

Alternative: send your CiteULike to FriendFeed as custom RSS, then to Twitter from there. - Neil Saunders

I liked the meeting categories. Not so sure about the differences between media and mainstream twittering/blogging people - I find it hard to see any distinction there. - Nils Reinton

You mean, other than the financial incentive? - Mr. Gunn

That is very nice and clean. - Bill Hooker

Thesis is great. I use it on my blog and love it. Check out http://www.howtomakemyblog.com to see what can be done with Thesis. - Marko Saric

I love this part: Nick says: "One group who could particularly benefit are early stage research scientists who lack an adequate mentor/peer support structure around them, for example those in small research groups, who could use web 2.0 applications to build a network of fellow researchers whose experience they can draw upon to help with their professional development.Such a network can also provide valuable moral support at an often difficult period career period!" - Steve Koch

Could you access the small worlds site? It was password protected when I tried. - Steve Koch

@MrG: I don't think it's really a secret. :-) - Bill Hooker

M$ is at it again... - Benjamin Tseng