search for: epiphytes

hello, I want to  know as mortality in different families of epiphytes after selective logging in the forest I want to make a survival analysis with left and right censored data.  My study begins in 2004 but I have many individuals who enter the study in 2007 I have tried this:                     surara<-survfit(Surv(fecha,estado)~categoria) fecha= time estado=...

Hi, I am currently trying to do a GLMM on a dataset with percent cover of seagrass (dep. var) and a suite of explanatory variables including algal (AC) and epiphyte cover (EC), rainfall, temperature and sunshine hours. M2=glmer(SG~AC+EC+TP+SS+RF+(1|Location/fSi/fTr), family=binomial,data=data,nAGQ=1) As the dependent variable is percent cover, I used a binomial error structure. I also have a

Hi everybody, Well, I really hoped that until now i know how to do a selection ..... but obviously i don't. So risking your laughing at me - here you go. I have a table with lots of vegetation data, and one column specifies in which region the data is. There are only 2 regions, region 1 and region 3. I want to select all data that belong to region 1 and after do some xtabs on it. If i do

Hi there, How could I display a tree from a nested set? I tried with live_tree(http://www.epiphyte.ca/code/live_tree.html) which is really fine but maybe too much ''powerful'' for my needs as my data set is quite small and not so deeply nested. Also it seems quite hard to get something like link_to_remote.. Thanks in advance! Ettore

Hi, I am looking for a good javascript control to display an acts_as_tree structure. Has anyone had good luck with an existing one or would it be better to roll my own? Thanks, Dan

Hi, Just a request for comments and ideas really. I need to display a Tree so that users can easily navigate to and from the various branches. I''m not really sure how best to do this, so I thought I''d ask here in case anyone had any ideas... Thanks in advance! -- Posted via http://www.ruby-forum.com/.

Hey all, Does anyone know of an existing project that acts as a file broswer for files/directories on the server. I need to implement something for my students to be able to access their unix home drives on our server via the web. It doesn''t sound that hard to do the actual file listing and accessing in ruby. Authenticating the users could be tricky (PAM?). It could be done, but

I have categories and sub-categories in a table called "categories". Every row has a "parent" field to note if the entry is the sub-category of another (never goes deeper than 1 level). So there might be something like this: id | name | parent 1 Dog 0 2 Pug 1 3 Siamese 5 4 Shih Tzu 1 5 Cat 0 6 Wiener Dog 1 7 Persian