search for: spline_coef

Hello R help I have been trying to use Rob Hyndman's monotonically increasing spline function. But like another user or two seem have a problem with a missing DLL (namely "spline_coef"). None of the previous help postings seemed to have any solutions to this problem. As per a Ripley suggestion I have deleted all previous versions of R and reinstalled R 2.7.0 and the problem persists. Thanks Paul. x <- seq(0,4,l=20) y <- sort(rnorm(20)) plot(x,y) lines(spli...

...working for the United Nations to construct a complete life table from an abridged table. I want to use the code of Hydman Filter by Rob J Hydman but an error sentence always appears and it simply doesn't run-- source("C:/R/Jamie/HymanFilter.R") Error in .C("spline_coef", method = as.integer(method), n = nx, x = x, : C symbol name "spline_coef" not in DLL for package "base" Can you please tell me what's the problem? I appreciate your help so much! Sincerely, Jamie Jamie Zuo Tel: 1-917-367-8000 Cell: 1-917-226-7531 E...

This is a low priority bug that has been around for a while, but I came acr= oss it again while alpha testing 2.8. The resulting function for splinefun gives incorrect deriv values when x is= less than the smallest x-value used to create the function (at least in on= e circumstance), but does the correct thing for x greater than the largest = x-value. Here is an example: > x <- 1:10 >

...splinefun gives incorrect deriv values > when x is less than the smallest x-value used to create the function > (at least in one circumstance), but does the correct thing for x > greater than the largest x-value. In a nutshell, splinefun calls, after some initial processing, the C routine spline_coef to fit the desired spline. spline_coef returns coefficients for the following representation of the spline; a[i] + dx*(b[i] + dx*(c[i] + dx* d[i]) where dx := u-x[i]; i such that x[i] <= u <= x[i+1]. This would evaluate the spline at u; the xs are the original knots. I.e., the four coeffi...

Has anyone got a function for smooth monotonic interpolation of a univariate function? I'm after something like the NAG function PCHIM which does monotonic Hermite interpolation. Alternatively, montononic cubic spline interpolation. Please reply directly. Rob Hyndman ___________________________________________________ Rob J Hyndman Associate Professor & Director of Consulting

...names.o libintl_dcigettext ../extra/intl/libintl.a(dcgettext.o) R_max_col registration.o R_ClearerrConsole connections.o pcre_maketables character.o spline_eval registration.o spline_coef registration.o R_Busy main.o R_approx registration.o Rf_dnf arithmetic.o Rf_dnt arithmetic.o Rf_pnf arithmetic.o Rf_pnt...

...names.o libintl_dcigettext ../extra/intl/libintl.a(dcgettext.o) R_max_col registration.o R_ClearerrConsole connections.o pcre_maketables character.o spline_eval registration.o spline_coef registration.o R_Busy main.o R_approx registration.o Rf_dnf arithmetic.o Rf_dnt arithmetic.o Rf_pnf arithmetic.o Rf_pnt...

...rithmetic.o R_ChooseFile platform.o lminfl_ registration.o deflateInit2_ connections.o N01_kind RNG.o do_machine names.o libintl_dcigettext ../extra/intl/libintl.a(dcgettext.o) R_max_col registration.o R_ClearerrConsole connections.o pcre_maketables character.o spline_eval registration.o spline_coef registration.o R_Busy main.o R_approx registration.o Rf_dnf arithmetic.o Rf_dnt arithmetic.o Rf_pnf arithmetic.o Rf_pnt arithmetic.o Rf_qnf arithmetic.o Rf_qnt arithmetic.o BZ2_bzRead connections.o Rf_choose arithmetic.o Brent_fmin optimize.o Rf_dbinom arithmetic.o Rf_dchisq arithmetic...

...names.o libintl_dcigettext ../extra/intl/libintl.a(dcgettext.o) R_max_col registration.o R_ClearerrConsole connections.o pcre_maketables character.o spline_eval registration.o spline_coef registration.o R_Busy main.o R_approx registration.o Rf_dnf arithmetic.o Rf_dnt arithmetic.o Rf_pnf arithmetic.o Rf_pnt...