search for: drfit

Hi, I am a newbie with R, so I hope my question isn't too stupid. I am trying to generate dose-response curves using the "drfit" package. I have formatted my CSV files to the correct format, and have no trouble running drfit to get a summary of my data. The problem is that when I try to use "drplot" to graph my data I get an error. The message is: Error in plot.window(xlim, ylim, log, asp, ...) : ne...

Dear R-Experts, I was wondering how to fit a cumulative gaussian to a set of empirical data using R. On the R website as well as in the mail archives, I found a lot of help on how to fit a normal density function to empirical data, but unfortunately no advice on how to obtain reasonable estimates of m and sd for a gaussian ogive function. Specifically, I have data from a psychometric function

...;,"diamonds","dichromat","DICOM","digest","diptest","dispmod","distr","distrEx","distrSim","distrTEst","diveMove","doBy","DPpackage","dr","drc","drfit","dse1","dse2","dyn","dynamicGraph","dynlm","e1071","eba","EbayesThresh","Ecdat","eco","ecodist","edci","effects","eha","elasticnet","ElemS...

CRAN (and crantastic) updates this week New packages ------------ * bdoc (1.0) Michael Anderson http://crantastic.org/packages/bdoc This package contains a function that will classify DNA barcodes as well as a few test and reference data sets. * bdsmatrix (1.0) Terry Therneau http://crantastic.org/packages/bdsmatrix This is a special case of sparse matrices, used by coxme and