search for: metaf

..., the first thing I want to do is construct a list of functions where form is already set. So in pseudocode fs[[1]](...) <- fitMicroProtein(form=0,...) fs[[2]](...) <- fitMicroProtein(form=1,...) . . . I've tried that and it doesn't work. Here's my code: Newton <- function(metaf,par,niter,dealwith_NA,...) { fs <- list() for(i in 0:(length(par)-1)) { fs[[i+1]] <- function(par) return(metaf(par,form=i,...)) } . . . and the problem is with the variable 'i'. If I use the debugger, I find that it is specifi...

R friends, In a matrix of 1s and 0s, I'm getting a singularity error. Any helpful ideas? lm(formula = activity ~ metaF + metaCl + metaBr + metaI + metaMe + paraF + paraCl + paraBr + paraI + paraMe) Residuals: Min 1Q Median 3Q Max -4.573e-01 -7.884e-02 3.469e-17 6.616e-02 2.427e-01 Coefficients: (1 not defined because of singularities) Estimate Std. Error t v...

Dear list: I am interested in the following sort of problem, as is found frequently in the field of QSAR. I have biological activity as a function of chemical structure, with structure defined in a categorical manner in that the SUBSTITUENT is the levels of the POSITION factor. For example, data from Kubinyi (http://www.kubinyi.de/dd-12.pdf) for this type of analysis is presented as follows:

Dear list, I am trying to choose the scale parameter for the cgt transform but I don't know how to do it. In time I would like to be able to separate points 30 samples apart, and in frequency I would like to separate bands 0.04 Hz apart. I tried the two approaches described below and they gave me different results. I would appreciate advise on how to do this. The Rwave Gabor transform uses