Re: [R] loaded Rcmdr but BiodiversityRGUI () not recognizing it

2011-09-16 Thread SG
Below is the message from the R workspace. I have installed the BiodiversityR and rmcdr How do I get to BiodiversityR GUI ? Thanks, Shreya [Missouri S&T] Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > loca

[R] installation of BiodiversityR package

2011-09-15 Thread SG
I have installed R on windows 7 machine. In the install packages I can't find BiodiversityR package. I was wondering if I can get some help with the installation process. Thanks. -- View this message in context: http://r.789695.n4.nabble.com/installation-of-BiodiversityR-package-tp3816807p381680

[R] nls, the four parameter logisitc equation, and prediction band

2011-09-12 Thread sg
I have uploaded a datafile that contains the following two variables: time (X value) and response (Y value). This is a fairly extensive file (with > 16000 entries). I have two questions: 1. I want to use the following equation to regress Y on X: Y-hat = min + (max-min)/(1 + (X/EC50)^Hillslope).