Interp Multivalued

When interpolating a multivalued function (more than one y for each x), interp1 produces, at best, an error (if there are identical x data), and at worst, garbage (see the attached image). This function performs meaningful interpolation of a multivalued function, when the inverse (x = g(y)) is a...

PDL::GSL::INTERP is a PDL interface to Interpolation routines in GSL. SYNOPSIS use PDL; use PDL::GSL::INTERP; my $x = sequence(10); my $y = exp($x); my $spl = PDL::GSL::INTERP->init(cspline,$x,$y); my $res = $spl->eval(4.35); $res = $spl->deriv(4.35); $res = $spl->deriv2(4.35);...

interp is a powerful programming language, a testing platform, and a development framework. It is targeted for Linux/Unix-based systems, yet remains adaptable to less powerful embedded systems that were never intended to host a programming language.


Platforms: Windows, Mac, Linux

I threw this together for myself, because I wanted a version of interp with differences 1, 2, and 3 (below). I'm sure it's not as fast as it could be - feel free to comment on any potential improvements, or on any bugs.Differences from MATLAB built-in functions: 1. MUCH faster 2. Extends border...


Platforms: Matlab

Side planes of Surf plotThere is no command such as meshz for surf plots with shading interp option in matlab. My surfz function has reference planes of surf plots.


Platforms: Matlab

Feeds Tamper provides a small plugin architecture for Feeds to modify data before it gets saved. Several plugins are available by default and are described in the examples section below. Additional plugins can be added in separate modules or through the issue queue.Examples: Replace every...


Platforms: PHP

Studs MVC Framework+ contains a port of Apaches Jakarta Struts to PHP, though the libraries included in the rest of the project are much more vast. In order to implement the Struts port, it was necessary to build a core, object-oriented API in the style of the JDK and the Jakarta Commons, a...


Platforms: *nix

Tclperl project allows the execution of Perl code from within a TCL interpreter using one or several embedded Perl interpreters. This package allows the execution of Perl code from a Tcl interpreter, as in: package require tclperl set interpreter [perl::interp new] $interpreter eval {print...


Platforms: *nix

rtldi is an ELF program interpreter that enables each main executable program to use its own runtime loader and shared libraries, independent of the default versions installed in /lib, and independent of any other main executable program. Thus rtldi facilitates the simultaneous interoperation...


Platforms: *nix

LDAP User Management System (LUMS) provides a set of basic LDAP API functions for PHP and a strong configuration language. The project can then be used to create Web services or can be used in any PHP script. The language allows the administrator to define LDAP object types along with their...


Platforms: *nix

Tk_CreateImageType is a Perl module to define new kind of image. SYNOPSIS #include < tk.h > Tk_CreateImageType(typePtr) ClientData Tk_GetImageMasterData(interp, name, typePtrPtr) ARGUMENTS Tk_ImageType *typePtr (in) Structure that defines the new type of image. Must be static: a...


Platforms: *nix

vtmalloc is a fast memory allocator for multi-threaded applications and Tcl. vtmalloc project provides low contention and the ability to return memory to the system. Tcl Replace exiting tclThreadAlloc. in the Tcl distribution and recompile with --enable-threads option. Or use...


Platforms: *nix

Active Directory Schema reports - In active directory Schema Reports, schema is the main component that defines all the objects and attributes that the directory service uses to store data. All objects are defined in the schema. Each time, when active directory handles data, the directory service...


Platforms: Windows

This file improves on the functionality of interp1 and allows the resampling of more complex data. Measurements can be taken completely arbitrarilly and need not be unique.Target uses are for data which is sampled against a signal that may contain noise or where there may be several measurements...


Platforms: Matlab

Fixes x data so that interp1 doesn't return error:'The values of X should be distinct.'Checks for duplicate values in input 1D data array and returns array where all values are distinct. If duplicates are found, values are separate by small value (eps). useage:x = nonduplicate(x); yi =...


Platforms: Matlab

Kriging and inverse distance are popular interpolation methods, especially in earth sciences. There are some routines already available on matlab but are severely limited by matlabs memory constraints. By using gstat to handle interpolation and variogram modelling, very large datasets are easily...


Platforms: Matlab

When drawing financial time series from various markets, one usually needs to make some adjustments before evaluating the series. One of the major concerns is that due to different national holidays or working days across countries, the dates happen to be not synchronized. Clearly this could make...


Platforms: Matlab

The function makes use of the inbuilt interp1 function to perform 2D extrapolation on a given data set. The input to the function is in the same format as required by interp2.eg. Zi = interpextrap2(X,Y,Z,Xi,Yi).Only it does not take "method" input. Method is 'cubic' by default. But the 'method'...


Platforms: Matlab

Revised 23rd Feb. 2006.Improved speed, functionality and documentation2-nd Rev, 3rd Apr.2007, back from TVAR to NUM2STRMAXimum points in a curve, ALL(default) or manually positively/negatively selected, with (default) or without parabolic interpolationneeds CLINEDemo uses SAVFILTHELP MAXALL shows...


Platforms: Matlab

Y = INPAINTN(X) replaces the missing data in X by extra/interpolating the non-missing elements. The non finite values (NaN or Inf) in X are considered as missing data. X can be any N-D array. Important note:----------------INPAINTN uses an iterative process that converges toward the solution. Y =...


Platforms: Matlab