Dear Ben, you answerd to Nancy Shackelford about Clarks 2Dt function. Since the thread ended just after your reply, I would like to ask, if you have an idea how to use this function in R
I defined it the following way: function(x , p, u) { (p/(pi*u))*(1+(x^2/u))^(p+1) } and would like to fit this one to my obeservational data (count) [,1] [,2] [1,] 15 12 [2,] 45 13 [3,] 75 10 [4,] 105 8 [5,] 135 16 [6,] 165 5 [7,] 195 15 [8,] 225 8 [9,] 255 9 [10,] 285 12 [11,] 315 5 [12,] 345 4 [13,] 375 1 [14,] 405 1 [15,] 435 1 [16,] 465 0 [17,] 495 1 [18,] 525 2 [19,] 555 0 [20,] 585 0 [21,] 615 0 [22,] 645 0 [23,] 675 0 but I am not able to fit anything. Do you have an idea? I guess there is something wrong in my formula for Clarks 2Dt Thank you for reading Ciao Ronald Bialozyt ______________________________________________ R-help@r-project.org mailing list 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.