lib-r-math.js

libRmath.js

Javascript ( TypeScript ) Pure Implementation of Statistical R "core" numerical libRmath.so library found here https://svn.r-project.org/R/trunk/src/nmath/

Progress (DONE and TODO)

Work in progress (see list below of all c modules that need to be ported), please considering helping out and bring R core functionality to Javascript.

I first list the modules DONE so far, lets start at a positive note)

DONE

original c module	js/ts module name	port date	R - base functions
Toms708.java	./lib/Toms708.ts	14 March 2017	from Java Version James Curran ([e-mail]) (Java version)
pbeta.c	./lib/pbeta.ts	14 March 2017	beta distribution function
pnorm.c	./lib/pnorm.ts	9 March 2017	Normal distribution function
gammalims.c	./lib/gammalims.ts	5 march 2017	calculates legal bounds of gamme_fn
fround.c	./lib/fround.ts	5 march 2017	rounds off to a set number of digites
fprec.c	./lib/fprec.ts	4 march 2017	Returns the value of x rounded to "digits" significant
expm1.c	./lib/expm1.ts	4 march 2017	Compute the Exponential minus 1
dweibull.c	./lib/dweibull.ts	4 march 2017	The density function of the Weibull distribution.
dt.c	./lib/dt.ts	4 March 2017	The t density
dpois.c	./lib/dpois.ts	4 March 2017	dpois() computes the Poisson probability lb^x exp(-lb) / x!
dnchisq.c	./lib/dnchisq.ts	4 March 2017	The density of the noncentral chi-squared distribution with "df"
dnt.c	./lib/dnt.ts	4 March 2017	Computes the density of the noncentral beta distribution with
dnorm.c	./lib/dnorm.ts	25 feb 2017	Compute the density of the normal distribution.
dnf.c	./lib/dnt.ts	25 feb 2017	The density function of the non-central F distribution
dnbinom.c	./lib/dnbinom.ts	25 feb 2017	Computes the negative binomial distribution.
dlogis.c	./lib/dlogis.ts	4 March 2017	not sure what it does
dlnorm.c	./lib/dlnorm.ts	4 March 2017	The density of the lognormal distribution.
dhyper.c	./lib/dhyper.ts	4 March 2017	The hypergeometric probability
dgeom.c	./lib/dgeom.ts	4 March 2017	Computes the geometric probabilities, Pr(X=x) = p(1-p)^x.
dnbeta.c	./lib/dnbeta.ts	4 March 2017	Computes the density of the noncentral beta distribution with
pgamma.c	./lib/pgamme.ts	9 March 2017	This function computes the distribution function for the gamma distribution
dgamma.c	./lib/dgamma.ts	27 feb 2017	Computes the density of the gamma distribution
lbeta.c	./lib/lbeta.ts	March 2 2017	This function returns the value of the log beta function.
C99 gamma function	./lib/c99_gamma.ts	25 feb 2017	added C99 gamma and lgamma,
dnbinom.c	./lib/dnbinom.ts	25 feb 2017	negative binomial distribution.
dbeta.c	./lib/dbeta.ts	25 feb 2017	R "dbeta" beta distribution function
dbinom.c	./lib/dbinom.ts	25 feb 2017	probability mass function of binomial distribution
log1p.c	./lib/log1p.ts	25 feb 2017	calculate log(1+x) for small value of x
choose.c	choose.ts	21 feb 2017	R "choose" function, C(n,k) binomial coefficients
gamma_cody.c	gamme_cody.ts	19 feb 2017	GAMMA function using algo of W. J. Cody,
bessel_i.c	bessel_i.ts	19 feb 2017	besseli
bessel_j.c	bessel_j.ts	19 feb 2017	besselj
bessel_k.c	bessel_k.ts	19 feb 2017	besselK
bessel_y.c	bessel_y.ts	19 feb 2017	bessely
sexp.c	./sexp.ts	8-feb-2017	(Random variates from the standard exponential distribution) exp_rand (internally used) function
dunif.c	./dunif.ts	8-feb-2017	R "dunif" function
bessel_k.c	./bessel_k.ts	8-feb-2017	R "besselK" function http://www.netlib.org/specfun/rkbesl
runif.c	./runif.ts	4-feb-2017	implemented 3 RNG and native browser/node agnostic 64 RNG map to floating number
bd0.c	./lib/bd0.ts	23-jan-2017	hidden, used by modules dbinom.c ,dpois.c dt.c
beta.c	./lib/beta.ts	23-jan-2017	beta
chebyshev.c	./lib/chebyshev.ts	23-jan-2017	chebyshev_init , chebyshev_eval
cospi.c	./lib/cospi.ts	23-jan-2017	cospi, sinpi, tanpi
gamma.c	./lib/gamma_fn.ts	23-jan-2017	[gammafn] gamme function(https://en.wikipedia.org/wiki/Gamma_function)
lgamma.c	./lib/lgamma_fn.ts	23-jan-2017	logarithmic gamma lgammafn
lgammacor.c	./lib/lgammecor.ts	23-jan-2017	lgammacor
stirlerr.c	./lib/stirlerr	23-jan-2017	Computes the log of the error term in Stirling's formula ( stirlerr )

TODO

original c module	ported to javascript?	tested	R - base functions
bd0.c	done ./lib/bd0.ts	no	hidden, used by modules dbinom.c ,dpois.c dt.c
bessel_i.c	done	no	R "besseli" Modified Bessel function of first kind.
bessel_j.c	done	no	R "besselj" gives the Bessel function of the first kind.
bessel_k.c	done	no	R "besselK" function http://www.netlib.org/specfun/rkbesl
bessel_y.c	done	no	R "bessely" gives the Bessel function of the second kind .
beta.c	done	no	beta
chebyshev.c	done ./lib/chebyshev.ts	no	chebyshev_init , chebyshev_eval
choose.c	done	no	R "choose" function, C(n,k) binomial coefficients
cospi.c	done ./lib/cospi.ts	no	cospi, sinpi, tanpi
d1mach.c	done	no	included in ./_general.ts
dbeta.c	done	no	distribution function of beta
dbinom.c	done	no	probability mass function of binomial distribution
dcauchy.c	TODO
dchisq.c	TODO
dexp.c	TODO
df.c	TODO
dgamma.c	done	no	Computes the density of the gamma distribution,
dgeom.c	done	no	Computes the geometric probabilities, Pr(X=x) = p(1-p)^x
dhyper.c	done	no	The hypergeometric probability
dlnorm.c	TODO
dlogis.c	TODO
dnbeta.c	done	no	Computes the density of the noncentral beta distribution with
dnbinom.c	done	no	negative binomial probability prob mass function
dnchisq.c	TODO
dnf.c	done	no	The density function of the non-central F distribution
dnorm.c	done	no	Compute the density of the normal distribution.
dnt.c	done	no	the non-central t density
dpois.c	done	no	dpois() computes the Poisson probability lb^x exp(-lb) / x!
dt.c	done	no	The t density
dunif.c	done	no	R "dunif" function
dweibull.c	done	no	The density function of the Weibull distribution.
expm1.c	done	no	Compute the Exponential minus 1
fmax2.c	TODO
fmin2.c	TODO
fprec.c	done	no	Returns the value of x rounded to "digits" significant
fround.c	done	no	fround function
fsign.c	TODO
ftrunc.c	TODO
gamma.c	done ./lib/gamma_fn.ts	no	gammafn
gamma_cody.c	done	no	GAMMA function using algo of W. J. Cody,
gammalims.c	done	no	calculates legal bounds of gamma_fn
i1mach.c	TODO
imax2.c	TODO
imin2.c	TODO
lbeta.c	done	no	This function returns the value of the log beta function.
lgamma.c	done ./lib/lgamma_fn.ts	no	logarithmic gamma lgammafn
lgammacor.c	done ./lib/lgammecor.ts	no	lgammacor
log1p.c	done	no	calculate log(1+x) with high accuracy for small x
mlutils.c	TODO
pbeta.c	done	no	pBeta distribution function
pbinom.c	TODO
pcauchy.c	TODO
pchisq.c	TODO
pexp.c	TODO
pf.c	TODO
pgamma.c	done	no	This function computes the distribution function for the gamma distribution
pgeom.c	TODO
phyper.c	TODO
plnorm.c	TODO
plogis.c	TODO
pnbeta.c	TODO
pnbinom.c	TODO
pnchisq.c	TODO
pnf.c	TODO
pnorm.c	done	no	normal distribution function
pnt.c	TODO
polygamma.c	TODO
ppois.c	TODO
pt.c	TODO
ptukey.c	TODO
punif.c	TODO
pweibull.c	TODO
qbeta.c	TODO
qbinom.c	TODO
qcauchy.c	TODO
qchisq.c	TODO
qexp.c	TODO
qf.c	TODO
qgamma.c	TODO
qgeom.c	TODO
qhyper.c	TODO
qlnorm.c	TODO
qlogis.c	TODO
qnbeta.c	TODO
qnbinom.c	TODO
qnchisq.c	TODO
qnf.c	TODO
qnorm.c	TODO
qnt.c	TODO
qpois.c	TODO
qt.c	TODO
qtukey.c	TODO
qunif.c	TODO
qweibull.c	TODO
rbeta.c	TODO
rbinom.c	TODO
rcauchy.c	TODO
rchisq.c	TODO
rexp.c	TODO
rf.c	TODO
rgamma.c	TODO
rgeom.c	TODO
rhyper.c	TODO
rlnorm.c	TODO
rlogis.c	TODO
rmultinom.c	TODO
rnbinom.c	TODO
rnchisq.c	TODO
rnorm.c	TODO
rpois.c	TODO
rt.c	TODO
runif.c	done	no	implemented 3 RNG and native browser/node agnostic 64 RNG map to floating number
rweibull.c	TODO
sexp.c	done	no	(Random variates from the standard exponential distribution) exp_rand (internally used) function
sign.c	TODO
signrank.c	TODO
snorm.c	TODO
stirlerr.c	done ./lib/stirlerr	no	Computes the log of the error term in Stirling's formula ( stirlerr )
toms708.c	NAP	no	ported instead Java Version from James Curran ([e-mail]) (Java version)
wilcox.c	TODO