Efficient Scientific Computations


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Documentation for package ‘physx’ version 1.0

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alp Associated Legendre Polynomials
approxfun2 Bilinear interpolation function of data on a regular grid
bindata Bin two-dimensional data in one dimension
car2pol Cartesian to polar/cylindrical coordinate conversion
car2sph Cartesian to spherical coordinate conversion
contourlevel Find contour levels of a d-dimensional density field
cosmofct Fast cosmology conversion functions
cst Scientific constants
dft Discrete Fourier Transform
dftgrid Produce coordinates for Discrete Fourier Transform
dpqr d/p/q/r-family for a custom distribution
entropy Information entropy
fibonaccisphere Evenly distributed n points on a sphere
griddata Grid 1D point set
griddata2 Grid 2D point set
histcoord Generate histogram coordinates from mid points
kde2 2D kernel density estimation
landyszalay Two-point correlation estimation
mcintegral Monte Carlo and Quasi-Monte Carlo integration in any dimension
mutual Mutual information of two random variables
ndft Non-uniform Discrete Fourier Transform
paircount Count the number of point-pairs in distance bins
physx Routines for scientific research
pol2car Polar/cylindrical to Cartesian coordinate conversion
quadrupole Quadrupole tensor
rebindensity Re-bin density histograms
rng Random number generator for a custom d-dimensional distribution
rotation2 2D rotation matrix
rotation3 3D rotation matrix
runif2 Generate randomly oriented vectors in 2D
runif3 Generate randomly oriented vectors in 3D
scalarproduct Scalar product
sph2car Spherical to cartesian coordinate conversion
sphericalharmonics Spherical Harmonics
unitvector Normalize vectors to unit length
vectornorm Vector norm
vectorproduct Vector product