search for: robert_biddle

Hi: I am doing some work that involves plotting points of interest superimposed on photographs and maps. I can produce the plots fine in R, but so far I have had to do the superimposition externally, which makes it tedious to do exploratory work. I have looked to see if there is some capability to put a background picture on a plot window, but I have not found anything. Advice, anyone? Cheers

...t https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ------------------------------ Message: 39 Date: Sun, 10 Feb 2008 19:37:40 -0500 From: Robert Biddle <robert_biddle at carleton.ca> Subject: [R] j and jcross queries To: r-help at r-project.org Message-ID: <47AF98D4.7010907 at carleton.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi: I have a query related to the J and Jcross functions in the SpatStat package. I use J to finding i...

Hi: I have a query related to the J and Jcross functions in the SpatStat package. I use J to finding indications of clustering in my data, and Jcross to look for dependence between point patterns. I use the envelope function to do Monte Carlo tests to look for significance. So far so good. My question is how I can test to see if tests are significantly different. For example, if find J of

Hi: I am looking for "style guides" for larger R programs, and would like suggestions of web pages or documents to look at. I am particularly interested in guidelines for how to structure programs, and such issues as managing scope, passing data around, data hiding, and so forth. I do have some understanding of how scope works, and how object-oriented programming does or might work.

Hi: A small query about R for Mac on OSX: when looking at the help system screens, it does not seem to be possible to search within them. For example, when looking at a long help page (e.g. for par) I often want to search for a particular parameter. But I don't see how. I just have to scroll and search by eye. Is there a better way? Thanks Robt

Can someone advise me what the most sensible way is to read jpeg images? For our work with image analysis and eye-tracking we have been using the rimage package, on both Macs and Windows PCs. But while setting up a new Windows machine yesterday, I see that rimage is regarded as orphaned, and no Windows binary is available. I eventually found an old zip file for the package, so I