Second Derivative Test Examples

Piecewise cubic spline interpolation and approximated calculation of first and second derivative at the interpolation point.

It performs piecewise parabolic interpolation and approximated calculation of first and second derivative at the interpolation point. Requirements: - MATLAB 5.2 or higher

Interactive differentiation for time- series signals, with sliders that allow you to adjust the derivative order, smooth width, and scale expansion continuously while observing the effect on your signal dynamically. Run InteractiveDerivativeTest to see how it works. For more information see...


Platforms: Matlab

this function might be useful for quick and dirty visual inspection of multiple traces or timecourses with a timedelay between or arbitrary x/y-axes or illconditioned overlay of traces - works for all outputs of the 'plot-function' (type is 'line').- Note, plotet dots are also of type line. - The...


Platforms: Matlab

Built-in function ismatrix() (2010b) returns 1 for scalars, vectors, strings, and empty variables, as well as for matrices.ismatrix1() corrects it to return 1 only for matrices.It returns 0 for for scalars, vectors, strings, and empty variables.ismatrix1_test gives examples of using ismatrix and...


Platforms: Matlab

It performs piecewise parabolic interpolation and approximated calculation of first and second derivative at the interpolation point.


Platforms: Matlab

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);...


Platforms: *nix

nmeap is an extensible parser for NMEA-0183 (GPS) data, written in portable C. It has a small footprint, is portable, extensible, and I/O agnostic. It is suitable for Linux, Win32, and embedded systems. It has built in support for most useful standard NMEA sentences, and is extensible to add...


Platforms: *nix

ECG data file of sufficient length to be loaded(Here ECG29.dat is used) ,Sampling frequency of the data required to specify.Program displays Electrocardigram data ,its first differentiation,second differeention and cumulayive of first and second derivative. To find qrs peak,thresholding is used...


Platforms: Matlab

The demo included in the code demonstrates how Radon-Like Features can be used to enhance (and segment) cell boundaries in Connectome EM images.Please cite the following paper if you find this code useful: Ritwik Kumar, Amelio V. Reina & Hanspeter Pfister, d-deDURadon-Like Features and their...


Platforms: Matlab

QuIRK is an interactive Matlab command line interface for constructing systems of rigid bodies and joint constraints, solving the equations of motion of those systems when subject to various force expressions, displaying and animating solved systems, and extracting information about the state...


Platforms: Matlab

It is designed to work with following data acquisition cards: - ADVANTECH PCI-1713-AE, 16 - channel differential analog input card - ADVANTECH PCI-1720, 4 - channel analog output cardFollowing devices are connected (although these can be changed for other models with analog input/output): -...


Platforms: Matlab

Implementation of the well known Haralick Edge Detector.Here are the steps of the algorithm : (1) Fit a bi-cubic polynomial to a small neighborhood of each pixel (this step provides smoothing too). (2) Compute (analytically) the second and third directional derivatives in the direction of...


Platforms: Matlab

[COPRIGHT=1] EXAMPLES General #!/usr/bin/perl -w use strict; use DBIx::Simple; # Instant database with DBD::SQLite my $db = DBIx::Simple->connect(dbi:SQLite:dbname=file.dat) or die DBIx::Simple->error; # Connecting to a MySQL database my $db = DBIx::Simple->connect(...


Platforms: *nix

Test::Unit::Tutorial is a Perl module that contains a tutorial on unit testing. SYNOPSIS perldoc Test::Unit::Tutorial Here should be extensive documentation on what unit testing is, why it is useful, and how to do it with the Test::Unit collection of modules. Sorry for not implementing...


Platforms: *nix

Test::XML::XPath is a Perl module to test XPath assertions. SYNOPSIS use Test::XML::XPath tests => 3; like_xpath( , /foo ); # PASS like_xpath( , /bar ); # FAIL unlike_xpath( , /bar ); # PASS is_xpath( bar , /foo, bar ); # PASS is_xpath( bar , /bar, foo ); # FAIL # More...


Platforms: *nix

Test::Tail::Multi is a Perl module to execute code, monitor dynamic file contents. SYNOPSIS use Test::Tail::Multi files => [qw(file1 file2)] tests=>2; # Can add files dynamically as well add_file(file3, "decided to add file3 too"); # Execute a command and check against output...


Platforms: *nix

Test::Usage is a different approach to testing: selective, quieter, colorful. SYNOPSIS Lets say we are building module Foo.pm. To exercise it, we write a usage examples module, Foo_T.pm, which may eventually look something like this: package Foo_T; use Test::Usage; use strict; use...


Platforms: *nix

Test::STDmaker is a Perl module to generate test scripts, demo scripts from a test description short hand. SYNOPSIS ####### # Procedural (subroutine) interface # use Test::STDmake qw(find_t_roots get_data perl_command); @t_path = find_t_paths() $date = get_date(); $myperl =...


Platforms: *nix

Test::LectroTest is a Perl module with easy, automatic, specification-based tests. SYNOPSIS #!/usr/bin/perl -w use MyModule; # contains code we want to test use Test::LectroTest; Property { ##[ x <- Int, y <- Int ]## MyModule::my_function( $x, $y ) >= 0; }, name => "my_function output...


Platforms: *nix