PDL Reference Documentation

Foundation

• How do I search for a function?
• Perldl shell

• Functions

  PDL::Core PDL::Basic PDL::Ops PDL::Ufunc

  Core module (e.g. creating piddles). Simplified interface to the more general PDL::Primitive. Basic operators (e.g. arithmetic, comparisons, etc.). Functions that accumulate along a dimension (e.g. sum, max).

• Other Features

  PDL::AutoLoader PDL::Slices PDL::NiceSlice

  MATLAB-style function autoloader Indexing and slices. How to access a subset of a piddle. Nicer syntax for slices.

Intermediate

• Graphics

  PDL::Graphics::PGPLOT PDL::Graphics::PLplot

  PGPLOT library. PLplot library.

  • 3D Graphics

    PDL::Graphics::TriD PDL::Graphics::TriD::Rout PDL::Graphics::TriD::Contours

    3D graphics core module. Helper routines for 3D graphics. 3D surface contours.

  • Helper Modules

    PDL::Graphics::LUT PDL::Graphics::IIS PDL::Graphics::Limits

    Look-up tables. Display images on IIS devices. Derive data limits for display purposes.

• Image Processing

  PDL::Compression PDL::Image2D PDL::ImageND PDL::ImageRGB

  Compression utilities. 2-dimmensional image processing. N-dimmensional image processing. RGB image data handling.

• Numerical Methods

  PDL::FFT PDL::Filter::LinPred PDL::Filter::Linear PDL::Opt::Simplex

  Fast Fourier Transform. Linear predictive filtering. Linear filtering. Simplex optimization routines

  • External Library

    PDL::FFTW PDL::Minuit PDL::Slatec

    PDL interface to the Fastest Fourier Transform in the West v2.x. PDL interface to the Minuit library. PDL interface to the slatec numerical programming library.

• Coordinate Transformations and Projections

  PDL::Transform PDL::Transform::Cartography

  Coordinate transforms, image warping, and N-D functions. Cartographic projections.

  • Proj4 projection library

    • PDL::GIS::Proj
    • PDL::Transform::Proj4

• IO Functions

  PDL::IO PDL::IO::Dumper PDL::IO::FastRaw PDL::IO::FlexRaw PDL::IO::Rout PDL::IO::Sortable

  Overview of IO functions. Data dumper. Fast storage format (needs updating). Flexible storage format. Misc IO routines. Support for Perl's 'Storable' module.

  • Images

    Native Support	External Library
    FITS images PNM images	GD HDF4 NetPBM Starlink NDF

• 2D Matrices

  PDL::Matrix PDL::MatrixOps

  Convenience class for 2D matrix work. Additional matrix operators.

• GNU Scientific Library

  PDL::GSL::DIFF PDL::GSL::INTEG PDL::GSL::INTERP PDL::GSL::MROOT PDL::GSL::RNG

  Numerical differentiation. Numerical integration. Interpolation. Multidimensional root-finding. RNG and randist.

  • Special Functions

    AIRY BESSEL CLAUSEN COULOMB COUPLING DAWSON DEBYE DILOG ELEMENTARY ELLINT

    ELLJAC ERF EXP EXPINT FERMI_DIRAC GAMMA GEGENBAUER HYPERG LAGUERRE

    LEGENDRE LOG POLY POW_INT PSI SYNCHROTRON TRANSPORT TRIG ZETA

• Fitting Functions

  PDL::Fit::Gaussian PDL::Fit::Polynomial PDL::Fit::Linfit PDL::Fit::LM

  Fit gaussian curves. Fit polynomials. Fit linear combinations of functions. Fit functions using the Levenberg-Marquardt algorithm.

Advanced

• 3D Graphics

  PDL::Graphics::TriD::ButtonControl PDL::Graphics::TriD::Labels PDL::Graphics::TriD::MathGraph PDL::Graphics::TriD::Objects PDL::Graphics::TriD::Tk PDL::Graphics::TriD::VRML

  Mouse event handler. Text labels (experimental). Mathematical graph objects. Simple graph objects. Tk widget interface for 3D graphics. 3D VRML backend.