Matlab Tutorials » load

Stream Line Plots of Vector Data

matlabtutorials — Sun, 02 May 2010 19:41:48 +0000

Wind Mapping Data

The MATLAB vector data set called wind represents air currents over North America. This example uses a combination of techniques: Read More

Matlab Tags: axis, Color, coneplot, contourslice, daspect, EdgeColor, FaceColor, LineWidth, load, matlab, max, meshgrid, min, plot, slice, sqrt, streamline, view

Reading, Writing, and Querying Graphics Image Files

matlabtutorials — Thu, 29 Apr 2010 08:20:27 +0000

Working with Image Formats

In its native form, a graphics file format image is not stored as a MATLAB matrix, or even necessarily as a matrix. Most graphics files begin with a header containing format-specific information tags, and continue with bitmap data that can be read as a continuous stream. For this reason, you cannot use the standard MATLAB I/O commands load and save to read and write a graphics file format image. Read More

Matlab Tags: Functions, ginput, Graphics, image, imagesc, imfinfo, imread, imwrite, ind2rgb, load, matlab, rbbox, save

Constructing Sparse Matrices

matlabtutorials — Wed, 14 Apr 2010 13:04:48 +0000

Creating Sparse Matrices

Converting Full to Sparse
Creating Sparse Matrices Directly
Creating Sparse Matrices from Their Diagonal Elements

MATLAB software never creates sparse matrices automatically. Instead, you must determine if a matrix contains a large enough percentage of zeros to benefit from sparse techniques. Read More

Matlab Tags: Converting Full to Sparse, Creating Sparse Matrices, Creating Sparse Matrices Directly, Creating Sparse Matrices from Their Diagonal Elements, load, mat-files, matlab, matrix, save, sparse, Sparse Matrices, spconvert, spdiags

Importing MAT-Files

matlabtutorials — Wed, 14 Apr 2010 00:57:33 +0000

Viewing the Contents of a MAT-File

MAT-files are binary MATLAB format files that store workspace variables. Read More

Matlab Tags: beginner, beginner tutorial, char, Details Panel, export, import, length, load, Loading Selected Variables, m-files, mat, MAT-File Versions, mat-files, matlab, mode, path, Potential Conflict with Function Names, programming, Programming Fundamentals, Regular Expressions, size, which, whos

Analysis of Functions, Interpolation, Curve Fitting, Integrals and Differential Equations 2

matlabtutorials — Tue, 23 Mar 2010 02:01:13 +0000

Localize minima and maxima of functions

Let us try to find the local minima and maxima for the function func(x). The interval of interest is [-6 0]. The algorithms are iterative. There are 2 methods to use. The first one decides x in a given interval, and the second one looks for x around an initial guess. To decide the maxima we are looking for an x that minimizes the negative function: -func(x). Read More

Matlab Tags: Analysis of Functions, applications, Command Window, curve, Define, differential, end, equations, Examples, fitting, for, format, full, Functions, grid, help, hold, if, inf, info, integral, integrals, integrand, interpolation, legend, load, matlab, mesh, meshgrid, minus, plot, polynomial, rand, randn, rem, round, sign, sum, title, tutorials, ver, what

Analysis of Functions, Interpolation, Curve Fitting, Integrals and Differential Equations

matlabtutorials — Tue, 23 Mar 2010 01:41:32 +0000

In this tutorial we will deal with analysis of functions, interpolation, curve fitting, integrals and differential equations. Firstly, we will need to use polynomials and therefore we have to be familiar with the representation of these. A general polynomial looks like: p(x)=a_nxⁿ + a_n-1x^n-1 +……….+ a₁x + a₀and is represented by a vector in Matlab:
p=[ aⁿ a^n-1 ....... a¹ a⁰ ] Read More

Matlab Tags: Analysis of Functions, continue, curve, Define, differential, end, equations, fitting, for, full, Functions, grid, gui, if, inf, integral, integrals, interpolation, load, matlab, more, plot, polynomial, quit, rem, return, sign, sum, title, tutorials, ver, what, which, xlabel, zeros

arrayfun

matlabtutorials — Sat, 05 Dec 2009 19:04:34 +0000

arrayfun – Apply function to each element of array Read More

Matlab Tags: array, Array Operations, arrayfun, cell2mat, cellfun, end, Examples, for, Functions, function_handle, if, load, matlab, mean, more, rand, rem, return, sign, spfun, structfun, ver, which

Introduction to Vectors in Matlab

matlabtutorials — Fri, 04 Dec 2009 08:58:26 +0000

Defining a Vector

Matlab is a software package that makes it easier for you to enter matrices and vectors, and manipulate them. The interface follows a language that is designed to look a lot like the notation use in linear algebra. In the following tutorial, we will discuss some of the basics of working with vectors. Read More

Matlab Tags: Define, division, end, eps, equations, for, if, load, matlab, matlab vectors, open, pack, rem, round, sign, stem, title, tutorials, vectors, ver, which

save

matlabtutorials — Wed, 12 Aug 2009 14:30:11 +0000

SAVE Save workspace variables to disk.
SAVE FILENAME saves all workspace variables to the binary “MAT-file”
named FILENAME.mat. The data may be retrieved with LOAD. If FILENAME
has no extension, .mat is assumed. Read More

Matlab Tags: abs, array, diary, end, fileformats, for, format, fprint, fprintf, fwrite, help, if, load, matlab, save, sum, uisave, variable names, variables, ver, workspace

Working with Matrices in Matlab

matlabtutorials — Tue, 04 Aug 2009 23:58:07 +0000

Generating Matrices

MATLAB software provides four functions that generate basic matrices. Read More

Matlab Tags: delete, dir, edit, Editor, end, example matrix, Examples, Expressions, fix, for, format, Functions, if, load, m-files, magic, magik, matlab, more, ones, rand, randn, rem, save, session, statements, sum, ver, which, zeros