A filter by doing linear prediction: tries to predict the next value in a data stream as accurately as possible. The filtered data is the predicted value. The parameters are NLags Number of time lags used for prediction LagInterval How many points ea...

Field.pm gives you access to the individual fields of a Grib file. Here is the code that attempts to decipher each of the sections associated with the format. All of the data is read into PDLs (one for each section) and it only deciphers those pdls o...

This class provides an iterator object for PDL::NDBin. The iterator object is used to systematically step through all bins and variables using a simple interface. Actions will receive a PDL::NDBin::Iterator object as the first and only argument. This...

This is an interface to the Special Function package present in the GNU Scientific Library....

This is a very simple, at present almost trivial, package to keep track of the current set of plotting commands....

This module contains routines for doing simple polynomial fits to data...

This is an interface to the Special Function package present in the GNU Scientific Library....

This is an interface to the Special Function package present in the GNU Scientific Library....

Functions to derive limits for data for display purposes...

This module implements a generic 3D plotting interface for PDL. Points, lines and surfaces (among other objects) are supported. With OpenGL, it is easy to manipulate the resulting 3D objects with the mouse in real time - this helps data visualization...

This is the PDL interface to the PLplot graphics library. It provides a familiar 'perlish' Object Oriented interface as well as access to the low-level PLplot commands from the C-API....

This is an interface to the Special Function package present in the GNU Scientific Library. Transport function: J(n,x) := Integral[ t^n e^t /(e^t - 1)^2, {t,0,x}]...

PDL can plot through a plethora of external plotting modules. Each module tends to be less widely available than Perl itself, and to require an additional step or two to install. For simple applications ("throw up an image on the screen", or "plot a ...

At present, this module provides one filtering routine. The main purpose is to provide an easy-to-use lowpass filter that only requires the user to provide the data and the cutoff frequency. However, the routines take options to give the user more co...

PDL::Transform::Color includes a variety of useful color conversion transformations. It can be used for simple hacks on machine-native color representations (RGB <-> HSV, etc.), for simple encoding/decoding of machine-native color representations suc...

"PDL::Graphics::PGPLOT" is a convenience interface to the PGPLOT commands, implemented using the object oriented PGPLOT plotting package in PDL::Graphics::PGPLOT::Window. See the documentation for that package for in-depth information about the usage...