Dear R-helper, Is there any thing that I am doing wrong in the following codes:> norm.cop <- normalCopula(0.5) > persp(norm.cop, dcopula)The last command produces what follows Error in persp(x, y, z, xlim, ylim, zlim, theta, phi, r, d, scale, expand, : invalid 'x' argument In addition: Warning messages: 1: no non-missing arguments to min; returning Inf 2: no non-missing arguments to max; returning -Inf 3: no non-missing arguments to min; returning Inf 4: no non-missing arguments to max; returning -Inf 5: is.na() applied to non-(list or vector) in: is.na(x) 6: no non-missing arguments to min; returning Inf 7: no non-missing arguments to max; returning -Inf I remember that I tried the same two commands exactly the way they appear above and I had the surface drawn properly. Does anyone have an idea what this could possibly mean? thanks, Dominique
Dear R-helpers, is it some sort of R internal fault or am I doing something wrong when typing the following two lines in R, I get the surface ploted and trying it another time it gives the error message below:> Error in ceiling(length.out) : Non-numeric argument to mathematical functionWhy is it that sometimes I try the same commands and i get the copula density plotted? I will appreciate any help. thanks, Dominique K.
Hello, I would like to fit a gumbel copula with normal margins, and t copula with t margins, but the guide of the copula package does not contain the detalis. Can anybody help me? Could anybody send me an example or a proper guidebook? Thanks a lot, L?szl? Pusk?s _____________________________________________________________________ 30% kedvezm?nnyel v?s?rolhatja meg az Eur?pa K?nyvkiad? k?nyveit okt?ber 25-26-?n a Bookline-on! http://www.bookline.hu/control/news?newsid=311&affiliate=frenykkar3156