COMBNSUB by Jos (10584)

Subset of all possible combinations of a fixed number of elements of a vector (v1.1, june 2013) (combination, subset, selection)

combnsub(V,N, IX)

COMBN (4.3) by Jos (10584)

All combinations of N elements taken from the vector V. (combination, select, permutation)

combn(V,N)

Concatenate arrays with different sizes in Matlab by Andres

This function allows you to concatenate arrays with different sizes padding with NaN where needed. (array, concatenate, function)

[catmat]=padconcatenation(a,b,c)

Fun Snowboard Video by Max

Just a fun little "video" of a snowboarder doing tricks. (snowboard, matrix transformation..., matrices)

final.m

ALLCOMB by Jos (10584)

All combinations of input (v3.0, may 2012) (all, combination, select)

Normalize N-D Vectors in Single Matrix or N Component Matrices by Ioannis Filippidis

Normalizes N-D vectors provided either in one matrix, or as multiple component matrices. (normalize, matrices, vector)

normvec(varargin)

vnorm(A,varargin)

usage_example_normvec.m

TPROD -- arbitary tensor products between n-d arrays by Jason Farquhar

TPROD -- efficiently allows any type of tensor product between 2 multi-dimensional arrays (matrices, einstein summation, multidimensional mult...)

[C,Atp,Btp]=etprod(Cidx,A,Aidx,B,Bidx)

[Z2]=orderTests(X,Y,sz)

[]=tprod_testcases(testCases,debugin)

CATPAD by Jonathan Sullivan

Concatenation of arbitrarily sized data along any dimension. (cell, merge, length)

catpad.m

PADCAT by Jos (10584)

concatenate vectors with different lengths by padding with NaN (v1.2, oct 2011) (matrix, matrices, matrix manipulation)

padcat(varargin)

RANDBLOCK by Jos (10584)

scramble matrices using blocks (v2.3, mar 2011) (matrices, scramble, matrix)

randblock(M,S)

Matrices program with a script for eigenvalues perturbations by Emanuele Natale

Some simple programs and a script, that could be usefull using "Trajectories of eigenvalues" (matrices, linear algebra, eigenvalues)

A=matrix

A=randint(m,n,r)

A=turn(alpha)

DEALCELL by Jiro Doke

Deals cell elements to variables (similar to DEAL) (matrices, deal, assign)

dealcell(varargout)

REPOP -- efficient replicating n-d array operations by Jason Farquhar

REPOP -- any element-wise operator between different sized n-d matrices without memory copies (matrices, replicating array ope...)

[]=repop_testcases(testType)

[varargout]=repop(varargin)

cofactors by Gordon Amoako

This is a function that computes the cofactors of an n x n matrix (mathematics, matrices)

cofactors(A)

Mathematica Symbolic Toolbox for MATLAB--Version 2.0 by Ben Barrowes

A symbolic toolbox for MATLAB based on Mathematica. (matrix, matrices, matlab)

testscript.m

Small size linear solver by Bruno Luong

Linear solver of multiple 2x2 and 3x3 systems (liner solver, determinant, cofactor)

inv2(A, B, varargin)

inv3(A, B, varargin)

bench_inv2inv3.m

NCHOOSE (v2.1 mar 2010) by Jos (10584)

return all combinations of the elements of a set (nchoosek, combination, set)

nchoose(S)

Squish by Mirko Hrovat

Squish removes ALL singleton dimensions. (matrices, squeeze, singleton)

squish(x)

Function to normalize columns of given matrix by B H Sri Hari

Normalizes columns of a matrix (matrices)

Normalize_Colmns(A)

Matrix Limits by Robert Bemis

Provides simple syntax to get range of values in N-dim numeric arrays. (matrices, data range, simple)

[x,y]=limits(a)

CELL2FLOAT by Jos (10584)

converts cell array into scalar float array (v4.0, jan 2010) (matrices, cell, double)

cell2float(C, Filler, StopOnError)

GETCHUNKS by Jiro Doke

Get the number of repetitions that occur in consecutive chunks. (matrices, repetitions, histogram)

getchunks(a, opt)

Pseudo Enumerations by Ben Hinkle

Create, manipulate and display arrays with enumeration values (matrices, enum, enumeration)

dispe(x,varargin)

penum(varargin)

ENUMARRAY by Jen

An array that inherits from class DOUBLE and allows a user to index elements using an enumerated typ (matrices, double, array)

enumarray

unique_no_sort_rows by Michael Petralia

find unique rows of a matrix without resorting the rows (cell array, matrices, matrix)

unique_no_sort_rows(A)

RANDMAT by Peter (PB) Bodin

Random shuffling of 2D-array elements. (shuffle, random, matrices)

randmat(X,DIM)

Binary Serach of rows of M-by-N Matrix by Dr. Murtaza Khan

Binary Search that is based on sum of column values of rows of input M-by-N Matrix (binary serach, matrices, search)

[rStart,rEnd]=findindofeqcolsumrows(Mat,pos)

bsearchmatrows(mat,srow,varargin)

bsearchmatrowsTest1.m

SYMBMATMAKE by Richard Hindmarsh

Makes a subscripted symbolic matrix . (symbolic math, symbolic, subscripted)

symbmatmake(vn,m,n)

MATLAB in Physics - Matrices by Matt McDonnell

The third lecture in a series on using MATLAB® in undergraduate physics courses. (matrices, demo, physics)

rrefexample(A)

rrefmovie(A,tol)

vectorExamples

index.m - create a list of the indices and values of an array by Georg Stillfried

Create a list where each value (content) of an array is displayed together with its index. (matrices, index, indexes)

index (M,varargin)

UNIQUEWITHEQUALNANS by Jos (10584)

Set unique, treating NaNs as equal (v2.0, mar 2009) (matrices, unique, sort)

uniquewithequalnans(A,varargin)

Align repeated trials of analog data to a variable event by Matthew Nelson

Align matrices of repeated trials of analog data to a variable event without a for loop over trials. (matrices, trial, saccade)

varargout=ADAlignTrials(AlignEv,bn,minTrTime,varargin)

matrixfunction by Pierce Brady

summary (matrix function, arrayfun, for loops)

matrixfun(hFunction,A,B,Dim)

matrixfuncc(hFunction,A,B)

matrixfunccn(hFunction,A,B)

CIRCULANT (v2.0, feb 2009) by Jos (10584)

(yet another, but fast) Circulent Matrix (matrix, matrix manipulation, matrices)

circulant(A,d)

NDLINSPACE (v1.1, feb 2008) by Jos (10584)

Generalized LINSPACE: linearly spaced values between mutliple points (matrices, values, interpolate)

ndlinspace(M1,M2,N)

interweave by John T. McCarthy

This function interweaves (alternates/overlaps) the columns of equal-sized matrices A,B,C... (matrices, interweave, interlace)

interweave(A, varargin)

Cleve's Corner: Experiments with MATLAB by Linda Webb

Free, online book for educators and high-school students looking to go beyond the standard courses (whitepaper, article, matlab)

REPLICATE by Mark Ruzon

Create a larger array by expanding each element of an array into a subarray. (matrices, replicate, repmat)

replicate(A,S,S1)

RANDPERMBREAK (v1.1, nov 2008) by Jos (10584)

randomize the order of elements within sections of a vector (rand, sections, matrix manipulation)

randpermbreak(N,BP, bpfixed)

SORTBREAK (v1.0, nov 2008) by Jos (10584)

sort elements of a vector between break points (sort, sections, vector)

sortbreak(X,BP, bpfixed) ;

SORTSET (v2.0) by Jos (10584)

Sort a set according to a user-defined order (matrices, list, set)

sortset(S, ORDER, DIM)

RESETREPLICATES by Jos (10584)

change the value of replicated elements in a matrix (matrices, unique, rows)

resetreplicates(X,DIM,VAL) ;

vec2grid by Kelly Kearney

Reshapes vector data to a grid (matrices, reshape, griddata)

vec2grid(varargin)

SLIDEFUN (v4.0, sep 2008) by Jos (10584)

apply function to a moving window over a vector (moving, feval, running)

slidefun (FUN, W, V, windowmode, varargin)

shift by John T. McCarthy

SHIFT a row or column RELATIVE to the other elements in a MATRIX. (matrices, shift, matrix)

shiftd(A,column,shift,type)

shiftl(A,row,shift,type)

shiftr(A,row,shift,type)

Merge matrices by Dimitri Shvorob

(in a SQL equijoin) (sql, join, matrices)

joinmat(x,y,type)

Reshape a matrix by Dimitri Shvorob

(pivot and unpivot) (matrices, long, tall)

tall2wide(a,r,c)

wide2tall(A,varargin)

FILLZERO (v2.1, may 2008) by Jos (10584)

replaces zeros of an array with preceeding non-zero values (matrices, fill, zero)

fillzero(X, DIM)

Running Extrema by Dan K

Returns the running minimum or maximum of a vector or matrix (analagous to the running average) (extrema, minima, maxima)

runningExtreme(input,nSamples,type)

isvect by Matt Fig

ISVECT(A,GUESS) Returns logical true if A is a vector of type guess. (matrices, is vector isvector ch...)

isvect(A,guess,varargin)