Matlab tips and tricks
matlab tips and tricks and ...
page overview:
I created this page as a vectorization helper but it grew to become my annotated Matlab reading cache. In order to motivate the DSP people out there, I am showing below how one can apply a window and scale factors on a pre-framed signal using no loops and minimal memory.
% For framing use buffer() or your own favorite
% Frame length: , Number of frames:
X = randn(,);
% Make a window (same for each frame)
w = hamming();
W = diag(sparse(w));
% This is the windowed signal, without loops
XW = W * X;
% Make a vector of random gain factors (one per frame)
g = rand(,);
G = diag(sparse(g))
% Now lets scale each frame by the corresponding gain factor
XG = X * G;
% Windowing and gain scaling is just left and right product with a diagonal.
XWG = W * X * G;
local links:
Note that some of the following documents are taken off of Mathworks' own support site; more specifically take a look at the technical notes section. Also a very good source of information is comp.soft-sys.matlab
- MATLAB Tensor Toolbox, 2005-12-07
Just as I was about to bite the bullet and write it myself, I finally came across a class for multidimensional tensors. The original page describing the toolbox can be found hereand the code here. If you are working with multi-linear forms you will definitely appreciate this. - GUI with MATLAB, 2005-06-15
A presentation on how to get started with GUIs. - Good MATLAB Programming Practices for the Non-Programmer, 2005-06-15
Some simple suggestions. - Writing Fast MATLAB Code, 2005-04-23
Once again your regular collection of standard tricks. - MATLAB Programming Style Guidelines, 2005-04-23
Not that you will ever start writing with such style but here is a bunch of suggestions. Well on page 9 it reads "Avoid cryptic code", well I don't think so. Can you deny that x'.'is so much more beautiful than conj(x) ??? I always prefer the second cause it's so easy to type ... ;) - MATLAB Tips and Tricks, 2005-04-23
We share the same name. A collection of a lot rather straightforward code. Take a look, you might find what you are looking for or might not ... - Why does LPC return a different prediction error than ARYULE?, 2004-03-16
This Matlab bug has caused me hours of frustration. Petr Fousek suffered too ... - MEX-files Guide, 2004-03-04
I still don't know if it is possible to operate 'inplace' on a mex array. Do I really need to reallocate memory for output? - Why do I receive a segmentation violation mentioning the toolbox cache when starting MATLAB?, 2004-03-03
Well you got to love this line: "Some customers have found that updating the driver for your video card can resolve the problem as well." Remember that we are talking about an XML toolbox cache file corruption ... - Numerical Computing with MATLAB, (pdf cached), (code cached), 2004-02-20
A very good read. Most of the chapters of the book along with the code are available online. - MATLAB Array Manipulation Tips and Tricks (pdf cached), (code cached), 2003-06-14
Again a very good read. - Floating Point, IEEE Standard unifies arithmetic model (pdf), 2003-06-14
- Why do I receive errors when overloading SUBSREF for types {} and . for MATLAB OOPS objects (31436) (pdf), 2003-06-11
If you have ever tried to write your own classes in Matlab chances are you run into the problems described in this article. - Simplify your code with comma-separated lists (pdf), 2003-06-08
Two very valuable cases are presented. The first is the fftshift() function which is all you need to know about the most flexible indexing method in Matlab. When you really understand fftshift() take a look at flipdim() and you are done. The second is the problems with subsref() / subsasgn() and the overloaded numel() functions in user-designed classes. - What's the big deal ? (pdf), 2003-06-08
The two main uses of deal are explained:
[C{:}] = deal(S.name); % The only way to initialize cell arrays
[S.name] = deal(C{:}); - Exploiting the comma-separated list(pdf), 2003-06-08
There is no exploiting going on here. This is a very easy reading. - Think Globally, Act Locally (pdf), 2003-06-08
A nice pattern for variable number number of input arguments is mentioned.
function heatmodel(varargin)
defaultValues = {100,72,350};
nonemptyIdx = ~cellfun(慽sempty�,varargin);Technorati 标记:defaultValues(nonemptyIdx) = varargin(nonemptyIdx);
[sz normalTemp hotTemp] = deal(defaultValues{:}); - Picking up the Pace with the MATLAB profiler (pdf), 2003-06-08
Some pretty interesting optimization tricks like the use of 1i variable, loop variable confinement and unrolling of complex arithmetic. Had MathWorks done this for all those cryptic "x" messages in profiler life would be easier ... - Is it possible to run MATLAB in the background under UNIX ? (86) (pdf), 2003-06-04
Guess what? It is! - Techniques for Debugging MATLAB M-files (1207) (pdf), m-files (zip), 2003-05-13
If you are a newbie and you're having problems with basic errors download the above m-files. Chances are your error is identified and solved in one of the examples. - What Is the EVAL Function, When Should I Use It, and How Can I Avoid It ? (1103) (pdf) 2003-03-19
Info about the dreaded triple quotes ''' in eval(). A really nasty way to disable quote's special functionality. In other languages one would expect to escape the quote by \' but not in Matlab. What you really need to know is that:
>> eval('disp(''''''This is a string'''''')')
'This is a string' - Is it possible to call a dynamic linked library from MATLAB ? (33513) (pdf), m-files (exe) 2003-03-09
Now one can simply wrap her code in a DLL and have it called from Matlab. Pointers to any type of Matlab variables can be defined straight in the workspace and can be passed to C/C++. Call by reference is now possible. - Printing and Exporting Guide (1206) (pdf) 2003-02-27
- Exporting Figures for Publication B (pdf), m-files (zip) 2003-02-27
Use this library in your next LaTeX paper ... - Matrix Indexing in Matlab (pdf)
- Memory management guide (1106) (pdf)
- Accelerating Matlab (R13) (pdf)
The new version of Matlab uses Just-In-Time code generation. Your for loops have never been that fast ! - Fast manipulation of multi-dimensional arrays in Matlab (pdf)
(Older version here) - How do I vectorize my code ? (1109) (pdf)
- Matlab array manipulation tips and tricks (pdf)
See up for the newest version of this document. - Matlab Tricks (pdf)
- comp.soft-sys.matlab.faq (pdf)
- Vectorization (pdf)
文章转载自 marios athineos 的 matlab tips and tricks and ...。
Matlab tips and tricks的更多相关文章
- (转) How to Train a GAN? Tips and tricks to make GANs work
How to Train a GAN? Tips and tricks to make GANs work 转自:https://github.com/soumith/ganhacks While r ...
- LoadRunner AJAX TruClient协议Tips and Tricks
LoadRunner AJAX TruClient协议Tips and Trickshttp://automationqa.com/forum.php?mod=viewthread&tid=2 ...
- Android Studio tips and tricks 翻译学习
Android Studio tips and tricks 翻译 这里是原文的链接. 正文: 如果你对Android Studio和IntelliJ不熟悉,本页提供了一些建议,让你可以从最常见的任务 ...
- Tips and Tricks for Debugging in chrome
Tips and Tricks for Debugging in chrome Pretty print On sources panel ,clicking on the {} on the bot ...
- [转]Tips——Chrome DevTools - 25 Tips and Tricks
Chrome DevTools - 25 Tips and Tricks 原文地址:https://www.keycdn.com/blog/chrome-devtools 如何打开? 1.从浏览器菜单 ...
- Nginx and PHP-FPM Configuration and Optimizing Tips and Tricks
原文链接:http://www.if-not-true-then-false.com/2011/nginx-and-php-fpm-configuration-and-optimizing-tips- ...
- 10 Essential TypeScript Tips And Tricks For Angular Devs
原文: https://www.sitepoint.com/10-essential-typescript-tips-tricks-angular/ ------------------------- ...
- WWDC笔记:2011 Session 125 UITableView Changes, Tips and Tricks
What’s New Automatic Dimensions - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSect ...
- Hex-Rays Decompiler Tips and tricks Volatile memory
https://www.hex-rays.com/products/decompiler/manual/tricks.shtml First of all, read the troubleshoot ...
随机推荐
- 一个静态的HTML页面用jquery ajax登录到sharepoint页面
$.ajax({ type: "get", url: "http://", d ...
- centos locate搜索工具
locate搜索工具 [root@localhost ~]# yum install mlocate [root@localhost ~]# locate passwd locate: can not ...
- 22. javacript高级程序设计-高级技巧
1. 高级技巧 1.1 函数 l 可以使用惰性载入函数,将任何分支推迟到第一个调用函数的时候 l 函数绑定可以让你创建始终在指定环境中运行的函数,同时函数柯里化可以让你创建已经填写了某些参数的函数 l ...
- Effective C++ -----条款23:宁以non-member、non-friend替换member函数
宁可拿non-member non-friend函数替换member函数.这样做可以增加封装性.包裹弹性(packaging flexibility)和机能扩充性.
- 【python】入门学习(六)
type() #检查变量或值得数据类型 >>> type(5) <class 'int'> 序列:包括字符串.元组和列表.序列都可以用索引.切片.len()(计算元素个数 ...
- 当你的IIS需要运行ASP网站时,需要这样配置下你的IIS
1.进入Windows 7的 控制面板->程序和功能->选择左上角的 打开或关闭Windows功能 2.现在出现了安装Windows功能的选项菜单,注意选择的项目,红色箭头所示的地方都要选 ...
- August 21st 2016 Week 35th Sunday
I figure life is a gift and I don't intend on wasting it. 我觉得生命是一份礼物,我不想浪费它. Tonight when I was runn ...
- August 17th 2016 Week 34th Wednesday
Life is painting a picture, not doing a sum. 生活就像是绘画,而不是做算术. I am too serious about digits. All what ...
- linux service命令常见使用方法
service命令,顾名思义,就是用于管理Linux操作系统中服务的命令. 1. 声明:这个命令不是在所有的linux发行版本中都有.主要是在redhat.fedora.mandriva和centos ...
- mybatis 学习!
参考链接 http://www.mybatis.org/spring/zh/mappers.html http://www.cnblogs.com/fangjian0423/p/spring-myba ...