search for: besselj

Dear R users, I'm porting a piece of Matlab code to R, but I'm now stuck with the following: I need an equivalent of besselJ(x, nu) that can handle a complex argument x. I couldn't find any R implementation. I did find a possible fortran solution in SLATEC (< http://www.netlib.org/slatec/ > , CBESJ-C), however I've never tried to use external C or Fortran code together with my R code, so I'm not...

Dear R users, I'm porting a piece of Matlab code to R, but I'm now stuck with the following: I need an equivalent of besselJ(x, nu) that can handle a complex argument x. I couldn't find any R implementation. I did find a possible fortran solution in SLATEC (< http://www.netlib.org/slatec/ > , CBESJ-C), however I've never tried to use external C or Fortran code together with my R code, so I'm not...

Dear all, I'm writing a code that requires Bessel functions with complex argument. Searching the list, I found the continuation of a thread I initiated a few months ago: http://tolstoy.newcastle.edu.au/R/e4/devel/08/03/0746.html As I understand, the most promising option would be to use the fortran or C implementation of Amos,

Dear R-Group: Recently, I ran into a problem. I was using a function called "I.1", which evaluates the first-order modified Bessel function of the first kind, in the package "CircStats". This function is not vectorized, since it uses a couple of "if" conditions. However, when I called this function with a vector argument, I got no error/warning messages in

...hing and local MODern REGression methods) contributed by B. D. Ripley. o par() has a `no.readonly = FALSE' argument which allows more sensible op <- par(no.readonly = TRUE); on.exit(par(op)). o Real Bessel functions of 1st to 3rd kind, of arbitrary order: besselI(), besselK(), besselJ(), besselY() are the I(), K(), J(), and Y() Bessel functions. o New conflicts() function from B.D.Ripley o uniroot has a new `maxiter' argument and returns #{iter} and precision. o New option `show.coef.Pvalue' (default: TRUE). If FALSE, print.summary.[g]lm does not print...

...hing and local MODern REGression methods) contributed by B. D. Ripley. o par() has a `no.readonly = FALSE' argument which allows more sensible op <- par(no.readonly = TRUE); on.exit(par(op)). o Real Bessel functions of 1st to 3rd kind, of arbitrary order: besselI(), besselK(), besselJ(), besselY() are the I(), K(), J(), and Y() Bessel functions. o New conflicts() function from B.D.Ripley o uniroot has a new `maxiter' argument and returns #{iter} and precision. o New option `show.coef.Pvalue' (default: TRUE). If FALSE, print.summary.[g]lm does not print...

...- is periodic [1] 1 0 1 0 1 0 1 0 1 0 1 0 1 0 > x %/% 5 [1] -1 0 0 0 0 0 1 1 1 1 1 2 2 2 > > > > cleanEx(); ..nameEx <- "Bessel" > > ### * Bessel > > ### Name: Bessel > ### Title: Bessel Functions > ### Aliases: bessel Bessel besselI besselJ besselK besselY gammaCody > ### Keywords: math > > ### ** Examples > > nus <- c(0:5,10,20) > > x <- seq(0,4, len= 501) > plot(x,x, ylim = c(0,6), ylab="",type='n', main = "Bessel Functions I_nu(x)") Bus Error(coredump) wazor /s/src/sta...

...opies of the first one. (PR#13469) o formatC(mode = "character") was documented to work, but did not. (PR#13474) o besselI(x,.., expon.scaled=TRUE) now gives accurate results for x < 1e5 whereas it previously underflowed for x >~= 1500. Further, besselJ(x,..) also computes up to 1e5 (instead of 1e4). o str() was incorrectly warning about its option component 'formatNum' set by strOptions(). o nls(algorithm = "port") did not accept the [factor] notation. (PR#13650) o The relational (aka "c...

...opies of the first one. (PR#13469) o formatC(mode = "character") was documented to work, but did not. (PR#13474) o besselI(x,.., expon.scaled=TRUE) now gives accurate results for x < 1e5 whereas it previously underflowed for x >~= 1500. Further, besselJ(x,..) also computes up to 1e5 (instead of 1e4). o str() was incorrectly warning about its option component 'formatNum' set by strOptions(). o nls(algorithm = "port") did not accept the [factor] notation. (PR#13650) o The relational (aka "c...